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diff --git a/release_docs/HISTORY.txt b/release_docs/HISTORY.txt index 1327827..f42bb00 100644 --- a/release_docs/HISTORY.txt +++ b/release_docs/HISTORY.txt @@ -4,6 +4,9 @@ This file contains history of the HDF5 libraries releases CONTENTS +22. Changes from 1.6.0 to 1.8.0-rc3 +21. Release Information for hdf5-1.6.7 +20. Release Information for hdf5-1.6.6 19. Release Information for hdf5-1.6.5 18. Release Information for hdf5-1.6.4 17. Release Information for hdf5-1.6.3 @@ -27,6 +30,2549 @@ CONTENTS [Search on the string '%%%%' for per-release section breaks.] +%%%%1.8.0-rc3%%%% Changes from 1.6.0 to 1.8.0-rc3 + + +HDF5 version 1.8.0-rc3 +================================================================================ + + +INTRODUCTION + +This document describes the differences between HDF5-1.6.* and +Hdf5 1.8.0 release candidate "HDF5-1.8.0-rc3", and contains information +on the platforms tested and known problems in HDF5-1.8.0-rc3. +For more details check the HISTORY.txt file in the HDF5 source. + + +Links to HDF5 1.8.0-rc3 source code, documentation, and additional materials +can be found on THG's development server (www.hdfgroup.uiuc.edu) at the +following location: + http://www.hdfgroup.uiuc.edu/HDF5/release/beta/obtain518.html +User documentation for the beta can be accessed directly at this location: + http://www.hdfgroup.uiuc.edu/HDF5/doc_1.8pre/doc/ + +New features of the upcoming 1.8.0 release are described in +the "What's New in 1.8.0?" document: + http://www.hdfgroup.uiuc.edu/HDF5/doc_1.8pre/WhatsNew180.html + +New and modified APIs are described briefly in + http://www.hdfgroup.uiuc.edu/HDF5/doc_1.8pre/WhatsNew180.html +and will be listed in the "HDF5 Software Changes" document: + http://www.hdfgroup.uiuc.edu/HDF5/doc_1.8pre/doc/ADGuide/Changes.html + + + +For more information, see the HDF5 home page: + + http://www.hdfgroup.org/HDF5/ + +If you have any questions or comments, please send them to the HDF Help Desk: + + help@hdfgroup.org + + +CONTENTS + +- New Features +- Support for new platforms and languages +- Bug Fixes since HDF5-1.6.0 +- Platforms Tested +- Known Problems + + +New Features +============ + + Configuration: + -------------- + - Removed stream-vfd from the HDF5 library. - AKC 2007/11/19. + - Updated versions of autotools. HDF5 now uses automake 1.10.0, + autoconf 2.61, and libtool 1.5.22. MAM - 2007/7/25. + - Changed default fortran compiler to g95 when gcc is used. - AKC + 2007/2/17. + - 'make check-vfd' can now be run from the top level directory. Not all + tests that 'make check' invokes work with certain Virtual File Drivers, + so those tests have been skipped. - MAM 2006/7/17 + - Added the variable HDF5TestExpress to control how long tests run. + Setting it to a value between 0 and 3 controls how thoroughly the + library is tested, with 0 being an "exhaustive run" and 3 being a + very quick "smoke test." 1 (a "full run") is the default. + -JML 2006/6/21 + - If both shared and static libraries are installed, now both will be + tested during 'make install'. -MAM 2006/06/21 + - Added support to explicity enable stream_vfd or shared libraries + when using parallel via the '--enable-stream_vfd' and + '--enable-shared' options, respectively. If not explicity defined, + These settings default to enabled when parallel is not used, + and disabled when parallel is used. -MAM 2006/06/17 + - Remove the flexible parallel code and the --enable-fphdf5 + configure option, it was never up to production standards + anyway. -QAK 2006/4/20 + - Added a macro hdf5_mpi_special_collective_io_works to filter out + some mpi-io packages that don't support collective IO for no IO + contributions in some processes. -KY 2006/2/16 + - Added -shlib option to link against installed shared libraries to + h5c++ and h5fc. -JML 2005/11/1 + - Added --enable-build-all option to configure, which only developers + should need to use. -JML 2005/10/24 + - Configure uses the 'TR' variable to let the user override the path + to the 'tr' utility. -JML 2005/10/17 + - Configure can recognize -lmpich as a form of MPI library. -AKC- + 2005/9/28. + - MD5 checksumming has been added to snapshot releases. Release + tarballs will be accompanied by .md5 checksum files, which can + be verified using the md5sum utility. -JML 2005/9/6 + - Some configure flags are incompatible (e.g., the C++ APIs cannot + be built using the parallel version of HDF5). configure will now + output errors when some common incompatible features are used + together. -JML 2005/9/6 + - A new API function, H5Tis_hard(), was added to the library. It + checks if a conversion function is a compiler (hard) conversion. + SLU - 2005/9/6 + - t_mpi will run the test_mpio_derived_dtype by default unless it is + known not working (indicated by macro H5_MPI_COMPLEX_DERIVED_DATATYPE_WORKS + not defined.) -AKC- 2005/8/23. + - Test execution has changed in a number of ways: + When make is invoked in parallel (using -j), sequential tests + are now executed as parallel make targets. This should make them + finish more quickly on machines with multiple processors. + Since test output is garbled when they are executed by parallel make, + tests now dump their output to foo.log files and foo.logsh files + (for test scripts). These logs are printed to the screen only + when a test fails or when all tests in the current directory have + completed successfully. + When tests pass, they will create a foo.chkexe file. + This prevents the test from executing again until the test or + main library changes. + All files generated by tests (*.chkexe, *.log, and any *.h5 files + created) can be removed by invoking 'make check-clean'. + Sequential and parallel library tests can now be invoked separately. + 'make check-s' will execute only sequential tests, and 'make check-p' + will execute only parallel tests. 'make check' will still execute + all tests. + -JML 2005/08/03 + - On windows, all.zip is deprecated. users should + read INSTALL_Windows.txt to know the details. + Reasons to deprecate all.zip: + 1. Avoid confliction for windows programmers + 2. Decrease size of CVS tree by adding all.zip + 3. Avoid using winzip as the intermediate step + --KY 2005/04/22 + - When HDF5 is created as a shared library, it now uses libtool's + shared library versioning scheme. -JML 2005/04/18 + - HDF5 now uses automake 1.9.5 to generate Makefiles.in. + This has a number of effects on users: + The Fortran compiler should be set using the environment + variable $FC, not $F9X. F9X still works, but is depreciated. + The output of make may be different. This should be only a + cosmetic effect. + make depened (or make dep) is no longer recognized, since automake + handles dependency tracking. + Some new configure options exist. --enable-dependency-tracking + and --disable-dependency-tracking are used to control automake's + dependency tracking. Dependencies are on by default *on most + platforms and compilers*. If --enable-dependency-tracking is + used, they will be enabled on any platform. However, this can + slow down builds or even cause build errors in some cases. + Likewise, --disable-dependency-tracking can speed up builds and + avoid some build errors. + Some make targets have alternate names. make check-install and + make installcheck do the same thing, for instance. + pmake on IRIX can be invoked from the root directory, but the + -V flag must be used to invoke it in any subdirectory or it + will give an error about undefined variables. + JML 2005/01 - 2005/03 + - Hardware conversion between long double and integers is also added. + SLU 2005/02/10 + - Started to support software conversion between long double and + integers. Hardware conversion will come very soon. SLU - 2005/1/6 + - Intel v8.0 compiler would infinite loop when compiling some test + code with -O3 option. Changed enable-production default compiler + option to -O2. AKC - 2004/12/06 + - Long double is assumed to be a supported C data type. It is a + stanadard C89 type. AKC - 2004/10/22 + - The IA64 will use ecc as the C++ compiler by default. + - Added some initial support for making valgrind/Purify (or similar + memory checking products) happier by initializing buffers to zero + and disabling the internal free list code. To take advantage of + this, use the "--enable-using-memchecker" configure option when + building the library. QAK - 2004/07/23 + - Fixed the long compile time of H5detect.c when v7.x Intel Compiler + is used with optimization NOT off. AKC - 2004/05/20 + - Fixed configure setting of C++ for OSF1 platform. AKC - 2004/01/06 + - Prefix default is changed from /usr/local to `pwd`/hdf5. + AKC - 2003/07/09 + + Library: + -------- + - Removed size restrictions on attributes, when using the "latest" + version of the file format. - QAK - 2007/02/21 + - Relaxed restrictions on attribute operations to allow a file ID to + be used as the "location ID". If a file ID is used, the attribute + operation will occur on the root group of the file. + - QAK - 2007/02/09 + - Enabled the CORE driver to read an existing file depending on + the setting of the backing_store for H5Pset_fapl_core and file + open flags. - SLU - 2006/11/30 + - Added new H5Gget_info_by_idx() routine to query the information about + a group according to the order within an index. + - QAK - 2006/11/27 + - Added new H5Gget_info() routine to query the information about a + group by name. + - QAK - 2006/11/27 + - Added new H5Oget_info_by_idx() routine to query the information about + an object in a group according to the order within an index. + - QAK - 2006/11/26 + - Added new H5Oget_info() routine to query the information about an + object in a group by name. + - QAK - 2006/11/26 + - Added new H5Oopen_by_idx() routine to open an object in a group + according to the order within an index. + - QAK - 2006/11/20 + - Added new H5Literate() routine to iterate over links in a group + according to the order within an index. + - QAK - 2006/11/20 + - Added new H5Ldelete_by_idx() routine to delete a link according to + the order within an index. + - QAK - 2006/11/13 + - Added new H5Lget_val_by_idx() routine to query the value of a soft link + according to the order within an index. + - QAK - 2006/11/13 + - Added new H5Lget_name_by_idx() routine to query the name of a link + according to the order within an index. + - QAK - 2006/11/12 + - Added new H5Rget_name() routine to determine the name of the object + that a reference points to, as long as the object is still + reachable in the group hierarchy. + - QAK - 2006/11/10 + - Added new H5Lget_info_by_idx() routine to query the link information + according to the order within an index. + - QAK - 2006/11/10 + - Added feature to H5Iget_name to allow retrieving the name of any + object's ID, as long as the object is still reachable in the + group hierarchy. + - LA - 2006/11/01 + - Added External and User-defined links. + External links are links from one HDF5 file to another; they + require both the name of the file and a path within that file. + User-defined links allow users to supply callback functions + for link traversals, allowing links to exhibit essentially + any behavior. + External links are a kind of user-defined link, so their default + behavior can be overridden by the user. + -JML 2006/8/23 + - Added H5Oopen and H5Oclose for opening objects of unknown type + (as link callback functions do). + -JML 2006/8/23 + - Added H5Oopen_by_addr, H5Oincr_refcount, and H5Odecr_refcount for + opening objects by address. Be very careful with these! + -JML 2006/8/23 + - Added H5Fget_intent to get the "intent" of a file (whether it + was opened with read-write access or read-only. + -JML 2006/8/23 + - Added Link Access Property Lists. They currently contain two + properties, nlinks (H5Pget/set_nlinks) and elink_prefix + (H5Pget/set_elink_prefix). nlinks controls how many soft and + user-defined traversals are allowed before HDF5 assumes it has + found a cycle (previously this defaulted to 16). + The elink_prefix is a filesystem path that is prefixed to the + names of any external link files opened using this LAPL. + -JML 2006/8/23 + - Add H5L link APIs. Old APIs (H5Glink, H5Gmove, etc.) are still + supported but deprecated. + New APIs are: + H5Llink - create a link to an object given its ID + H5Lmove - just like H5Gmove2 + H5Lcopy - copy a link without copying the underlying object + H5Lcreate_hard - like H5Glink2 for hard links + H5Lcreate_soft - like H5Glink2 for soft links + H5Ldelete - just like H5Gunlink + H5Lget_val - just like H5Gget_linkval + H5Lget_info - gets link-specific info (like H5Gget_objinfo) + + In addition, H5Gcreate_anon, H5Tcommit_anon, and H5Dcreate_anon + no longer create links to objects; objects must be manually linked + using H5Llink or they will be deleted when the ID is closed. + + Link Creation Property Lists can be used to pass character + encoding (ASCII or UTF-8) for link names and to set the Intermediate + Group Creation Flag: + H5Pset_char_encoding, H5Pget_char_encoding + H5Pset_copy_object, H5Pget_copy_object + -JML 2006/7/5 + - Added managements of collective IO supports for chunking storage + inside parallel HDF5 + 1) Implemented One IO with collective mode for all chunks in the + application by building one MPI derived datatype accross all + chunks. + 2) Implemented the decision-making support to do collective IO inside + MPI-IO per chunk. + 3) Added the decision-making support to do one IO accross all chunks + or to do multiple IOs with each IO per chunk. + 4) Added the support to handle the case some processes won't do any IOs in + collectively. + 5) Some MPI-IO package(mpich 1.2.6 or lower, e.g.) cannot handle + collective IO correctly for the case when some processes have no + contributions to IOs, a special macro is added to change + collective IO mode to independent IO mode inside HDF5 library. + + Currently we find that MPICH at Linux and vender MPI-IO package at NCSA + Altix cannot handle this case. + + "hdf5_mpi_special_collective_io_works=${hdf5_mpi_special_collective_io_works='no'}" + has been added at the end of file <ia64-linux-gnui> and + <linux-gnulibc1>. + + If MPI-IO packages at your Linux and Altix support this case, + please comment out the last line and report to us at + help@hdfgroup.org. We can tune in our configuration to + support this. + + KY - 2006/02/16 + - Added character encoding to attribute creation property lists. + JML - 2006/01/02 + - Added H5Gcopy() routine to copy objects between while keeping + data in compressed form. QAK - 2005/11/06 + - Added H5Sextent_equal() routine. QAK - 2005/11/06 + - Added HSYS_ERROR which retrieves the system error message and pushes + it to the error stack. This gives more information of the failed + system call. AKC - 2005/08/04 + - Added H5F_OBJ_LOCAL flag to H5Fget_obj_count() & H5Fget_obj_ids(), to + allow querying for objects in file that were opened with a particular + file ID, instead of all objects opened in file with any file ID. + QAK - 2005/06/01 + - Added H5T_CSET_UTF8 character set to mark datatypes that use the + UTF-8 Unicode character encoding. Added tests to ensure that + library handles UTF-8 object names, attributes, etc. -JL 2005/05/13 + - HDF5 supports collective MPI-IO for irregular selection with HDF5 + dataset. Irregular selection is when users use H5Sselect_hyperslab + more than once for the same dataset. + Currently, not all MPI-IO packages support complicated MPI derived + datatype used in the implementation of irregular + selection INSIDE HDF5. + 1) DEC 5.x is not supporting complicated derived datatype. + 2) For AIX 5.1, + if your poe version number is 3.2.0.19 or lower, + please edit powerpc-ibm-aix5.x under hdf5/config, + Find the line with + << hdf5_mpi_complex_derived_datatype_works>> + and UNCOMMENT this line before the configure. + check poe version with the following command: + lpp -l all | grep ppe.poe + 3) For Linux cluster, + if mpich version is 1.2.5 or lower, collective irregular selection + IO is not supported, internally independent IO is used. + 4) For IRIX 6.5, + if C compiler version is 7.3 or lower, collective irregular selection + IO is not supported, internally independent IO is used. + 5) For platforms which internally used mpich, if the + mpich version is 1.2.5 or lower, please find the + corresponding config file and add + hdf5_mpi_complex_derived_datatype_works='no' at the + end of the configuration file. For example, at NCSA + SGI Altix, the internal mpich library is 1.2.5. So + hdf5_mpi_complex_derived_datatype_works='no' should be + added at the end of the config file ia64-linux-gnu. + KY - 2005/09/12 + We also found not all MPI-IO packages support collective IO with one + or more processes to have no contributions to IO. + For mpich version 1.2.6 or lower and all IRIX machine, + if the library checks that there are no IO contributions for some + processes, collective IO request is replaced with + independent inside HDF5. + KY - 2006/05/04 + + - HDF5 N-bit filter + HDF5 support N-bit filter from this version, + The N-Bit filter is used effectively for compressing data of N-Bit + datatype as well as compound and array datatype with N-Bit fields. + KY - 2005/04/15 + - HDF5 scaleoffset filter + HDF5 supports scaleoffset filter for users to do data + compression through HDF5 library. + Scale-Offset compression performs a scale and/or offset operation + on each data value and truncates the resulting value to a minimum + number of bits and then stores the data. + Scaleoffset filter supports floating-point and integer datatype. + Please check the HDF5 reference manual for this. + KY - 2005/06/06 + - Retired SRB vfd (--with-srb). Functions H5Pset_fapl_srb and + H5Pget_fapl_srb were removed. EIP - 2005/04/07 + - Retired GASS vfd (--with-gass). Functions H5Pset_fapl_gass and + H5Pget_fapl_gass are removed too. AKC - 2005/3/3 + - Pablo was removed from the source code EIP - 2005/01/21 + - Modified registration of SZIP to dynamically detect the presence + or absence of the encoder. Changed configure and Makefiles, + and tests to dynamically detect encoder. BEM - 2004/11/02 + - Added function H5Pget_data_transform, together with the previously + added H5Pset_data_transform, to support the data transform + feature. AKC - 2004/10/26 + - Compound datatype has been enhanced with a new feature of size + adjustment. The size can be increased and decreased(without + cutting the last member) as long as it doesn't go down to zero. + No API change is involved. SLU - 2004/10/1 + - Put back 6 old error API functions to be backward compatible with + version 1.6. They are H5Epush, H5Eprint, H5Ewalk, H5Eclear, + H5Eset_auto, H5Eget_auto. Their new equivalent functions are + called H5Epush_stack, H5Eprint_stack, H5Ewalk_stack, + H5Eclear_stack, H5Eset_auto_stack, H5Eget_auto_stack. SLU - + 2004/9/2 + - 4 new API functions, H5Tencode, H5Tdecode, H5Sencode, H5Sdecode were + added to the library. Given object ID, these functions encode and + decode HDF5 objects(data type and space) information into and from + binary buffer. SLU - 2004/07/21 + - Modified the way how HDF5 calculates 'pixels_per_scanline' parameter for + SZIP compression. Now there is no restriction on the size and shape of the + chunk except that the total number of elements in the chunk cannot be + bigger than 'pixels_per_block' parameter provided by the user. + EIP - 2004/07/21 + - Added support for SZIP without encoder. Added H5Zget_filter_info + and changed H5Pget_filter and H5Pget_filter_by_id to support this + change. JL/NF - 2004/06/30 + - SZIP always uses K13 compression. This flag no longer needs to + be set when calling H5Pset_szip. If the flag for CHIP + compression is set, it will be ignored (since the two are mutually + exclusive). JL/NF - 2004/6/30 + - A new API function H5Fget_name was added. It returns the name + of the file by object(file, group, data set, named data type, + attribute) ID. SLU - 2004/06/29 + - Added support for user defined identifier types. NF/JL - 2004/06/29 + - A new API function H5Fget_filesize was added. It returns the + actual file size of the opened file. SLU - 2004/06/24 + - New Feature of Data transformation is added. AKC - 2004/05/03. + - New exception handler for datatype conversion is put in to + replace the old overflow callback function. This exception + handler is set through H5Pset_type_conv_cb function. + SLU - 2004/4/27 + - Added option that if $HDF5_DISABLE_VERSION_CHECK is set to 2, + will suppress all library version mismatch warning messages. + AKC - 2004/4/14 + - A new type of dataspace, null dataspace(dataspace without any + element) was added. SLU - 2004/3/24 + - Data type conversion(software) from integer to float was added. + SLU - 2004/3/13 + - Data type conversion(software) from float to integer was added. + Conversion from integer to float will be added later. + SLU -2004/2/4 + - Added new H5Premove_filter routine to remove I/O pipeline filters + from dataset creation property lists. PVN - 2004/01/26 + - Added new 'compare' callback parameter to H5Pregister & H5Pinsert + routines. QAK - 2004/01/07 + - Data type conversion(hardware) between integers and floats was added. + SLU 2003/11/21 + - New function H5Iget_file_id() was added. It returns file ID given + an object(dataset, group, or attribute) ID. SLU 2003/10/29 + - Added new fields to the H5G_stat_t for more information about an + object's object header. QAK 2003/10/06 + - Added new H5Fget_freespace() routine to query the free space in a + given file. QAK 2003/10/06 + - Added backward compatability with v1.6 for new Error API. SLU - + 2003/09/24 + - Changed 'objno' field in H5G_stat_t structure from 'unsigned long[2]' + to 'haddr_t'. QAK - 2003/08/08 + - Changed 'fileno' field in H5G_stat_t structure from 'unsigned long[2]' + to 'unsigned long'. QAK - 2003/08/08 + - Changed 'hobj_ref_t' type from structure with array field to 'haddr_t'. + QAK - 2003/08/08 + - Object references (hobj_ref_t) can now be compared with the 'objno' + field in the H5G_stat_t struct for testing if two objects are the + same within a file. QAK - 2003/08/08 + - Switched over to new error API. SLU - 2003/07/25 + + Parallel Library: + ----------------- + - Added mpich2 as a testing "platform" informally. AKC - 2005/9/28. + - A dataset created in serial mode with H5D_ALLOC_TIME_INCR allocation + setting was not extendible, either explicitly by H5Dextend or + implicitly by writing to unallocated chunks. Library now allocates + more space when needed or directed if the file is opened by parallel + mode, independent of what the dataset allocation mode is. + CC/AKC - 2005/08/29. + - Allow compressed, chunked datasets to be read in parallel. + QAK - 2004/10/04 + - Add options of using atomicity and file-sync to test_mpio_1wMr. + AKC - 2003/11/13 + - Added parallel test, test_mpio_1wMr, which tests if the + underlaying parallel I/O system is conforming to the POSIX + write/read requirement. AKC - 2003/11/12 + + Fortran Library: + ---------------- + - added support for shared Fortran libraries. -JML 2005/09/20 + - added missing h5tget_member_class_f function + EIP 2005/04/06 + - added new functions h5fget_name_f and h5fget_filesize_f + EIP 2004/07/08 + - h5dwrite/read_f and h5awrite/read_f functions only accept dims parameter + of the type INTEGER(HSIZE_T). + - added support for native integers of 8 bytes (i.e. when special + compiler flag is specified to set native fortran integers to 8 bytes, + for example, -i8 flag for PGI and Absoft Fortran compilers, + -qintsize=8 flag for IBM xlf compiler). + EIP 2005/06/20 + - added support for "big" REAL and DOUBLE PRECISION types + (usually the size is specified by compilers flags like + -r8, -r16, etc.) + Known problem: multi file test fails when REAL is 16 bytes. + EIP 2005/09/8 + + C++ Library: + ---------------- + - added support for shared C++ libraries. -JML 2005/09/20 + - Added missing member functions + H5::CompType::getMemberArrayType + H5::CompType::getMemberVarLenType + H5::AbstractDs::getArrayType + H5::AbstractDs::getVarLenType + H5::CommonFG::openArrayType + H5::CommonFG::openVarLenType + H5::PropList::copyProp -- this will replace the current + H5::PropList::copyProp in later releases due + to incorrect prototype. + H5::IdComponent::getHDFObjType + BMR - 2005/08/08 + + + Tools: + ------ + - h5repack and h5diff changed command line parameter syntax to be + similar to h5dump, adding also long switch names. PVN - 2008/1/16 + - h5repack now supports adding multiple filters to all objects. + PVN - 2008/1/16 + - h5dump lists groups and attributes in requested orders (by name and + creation order, both ascending and descending). PVN - 2007/10/5 + - h5import imports string (text) data. PVN - 2007/10/5 + - h52gif and gif2h5: Both these tools were revised to include the High + Level Image API support, and tests were added to /hl/tools/gif2h5. + PVN - 2007/04/13 + - h5dump: added support for double long type H5T_NATIVE_LDOUBLE. PVN + 2007/03/13 + - h5dump: added support for binary output, see usage. PVN 2007/03/13 + - h5repack: added support for the new nbit and scaleoffset filters. + PVN - 2007/05/07 + - h5repack: now uses the API function H5Ocopy (of the tool h5copy) to + recreate objects if there is not a user input for changes. PVN - + 2007/05/07 + - h5repack: added support for reading and repacking by hyperslabs for + large files. PVN - 2007/03/01 + - h5repack: a new option allows the copy using the file type (default) + instead of the previous conversion to native type. PVN - 2007/03/01 + - h5repack: output the percentage of compression used. PVN - 2007/03/01 + - h5diff: added support for -p option for unsigned long_long data. PVN + - 2007/02/26 + - h5diff: added support for comparing dataset regions. PVN - 2007/02/20 + - h5diff: added support for reading and comparing by hyperslabs for large files. + PVN - 2007/02/20 + - h5diff: printing of dataset dimensions along with dataset name. PVN -2007/02/19 + - h5dump now uses the new API function H5Rget_name to display the name + of the dataset referenced instead of its ID. PVN - 2007/02/19 + - Added new tool, h5mkgrp. QAK - 2007/02/14 + - Added new tool, h5copy. PVN - 2006/7/15 + - Removed obsolete pdb2hdf5 tool from tools/misc -JML 2005/10/24 + - Added build_h5perf_alone.sh that builds h5perf by standalone mode. + AKC - 2005/09/18. + - Sped up h5dump on files with large numbers of objects. + QAK - 2005/08/25 + - Added a standalone mode for building h5perf. AKC - 2005/08/12 + - new tool, h5jam. See reference manual. 2004/10/08 + - h5repack.sh did not report errors encountered during tests. It does + now. AKC - 2004/04/02 + - Added the MPI-I/O and MPI-POSIX drivers to the list of VFL drivers + available for h5dump and h5ls. RPM & QAK - 2004/02/01 + - Added option --vfd= to h5ls to allow a VFL driver to be selected + by a user. RPM & QAK - 2004/02/01 + - Added option -showconfig to compiler tools (h5cc,h5fc,h5c++). + AKC - 2004/01/08 + - Install the "h5cc" and "h5fc" tools as "h5pcc" and "h5pfc" + respectively if library is built in parallel mode. + WCW - 2003/11/04 + - Added metadata benchmark (perform/perf_meta). SLU - 2003/10/03 + - Changed output of "OID"s from h5dump from "<number>-<number>" to + "<number". This affects both the "regular" and XML output. + QAK - 2003/08/08 + - Changed output of file IDs and "OID"s from h5ls from + "<number>:<number>:<number>:<number>" to "<number>:<number>" + QAK - 2003/08/08 + + High-Level APIs: + ------ + - Fortran interfaces for the Image, Table and Lite APIs. PVN - 2007/5/1 + - New HDF5 Dimension Scale API (H5DS) allows dimension scales to be + created in an HDF5 file and associated with specific datasets. PVN - 2007/5/1 + - There are two new functions in the Lite library, H5LTtext_to_dtype + and H5LTdtype_to_text. H5LTtext_to_dtype creates a HDF5 data type + given a text description; H5LTdtype_to_text converts a data type + to text description. Only DDL definition is supported as text + desciption now. SLU - 2006/05/17 + - Added Packet Table API for creating tables with less overhead than + H5TB API. Added C++ wrapper for Packet Tables. See documentation. + JML - 2004/03/28 + + Documentation + ------------- + - The documentation for this release is largely complete, but + trails the source code. A few of the newer functions are + not yet documented. FMB - 2007/04/18 + - The user documents for this release can be accessed directly at + this location: + http://www.hdfgroup.uiuc.edu/HDF5/doc_1.8pre/doc/ + The most recent document versions (updated daily) in the + 1.8 development branch can be accessed at this location: + http://www.hdfgroup.uiuc.edu/HDF5/doc_dev_snapshot/H5_dev/ + FMB - 2007/04/18 + + +Support for new platforms, languages and compilers. +======================================= + - Added support for Free-BSD on amd64 with GNU C and Fortran compilers + 4.2.1 + EIP - 2007/06/25 + - Added support for sequential and parallel libraries for Intel 64 Linux + cluster (abe.ncsa.uiuc.edu). Among three MPICH packages available on + this machine, only Open MPI works. The VMI has seg fault in hyperslab.c + and bittests.c tests. The MVAPICH2 complained about mpd not running + the parallel test. (see Known Problems section for more info) + EIP - 2007/06/25 + - Added support for HPUX11.23 for both 32 and 64-bit; HDF5 C++ + - Added support for 64-bit Windows with Visual Studio .NET and 2005. + SJW - 2007/06/25 + - Added suport for HPUX11.23 for both 32 and 64-bit; HDF5 C++ + shared library is not supported with +DD64 flag. + EIP - 2006/06/22 + - Added support for VAX floating numbers for Alpha Open VMS 7.3.2 + EIP - 2006/05/05 + - Fixed broken make.com files in tools directories + EIP - 2006/05/05 + - Added support for Alpha Open VMS 7.3.2 EIP - 2006/04/15 + - Added support for Cray X1. JML - 2005/10/03 + - PGI Fortran compiler is supported on Linux64 systems (x86_64) + EIP - 2004/08/19 + - Absoft compiler f95 v9.0 supported on Linux 2.4 + EIP - 2004/07/29 + - HDF5 Fortran APIs are supported on Mac OSX with IBM XL Fortran + compiler version 8.1. This is a default compiler. + - HDF5 Fortran APIs are supported on MAC OSX with Absoft F95 compiler + version 8.2; set F9X environment varibale to f95, for example + setenv F9X f95 + Use --disable-shared --enable-static configure flags when Absoft + compiler is used. + EIP - 2004/07/27 + - HDF5 Fortran APIs are supported on MAC OSX with IBM XL Fortran + Compiler version 8.1 Use "--disable-shared --enable-static" + configure flags along with the "--enable-fortran" flag to build + Fortran library. EIP - 2004/01/07 + +Bug Fixes since HDF5-1.6.0 release +================================== + + Library + ------- + - Changed library's behavior for reading files that might have + corrupted object header information from a previous (buggy) + version of the library. By default, the library now rebuilds the + correct object header information instead of issuing an error. + Previous "strict" file format interpretation can be enabled with + the "--enable-strict-format-checks" configure option. + QAK - 2008/01/13 + - Fixed several bugs with writing fill values for datasets that have + a variable-length datatype or component datatype. QAK - 2007/06/19 + - STDIO driver didn't support files bigger than 2GB because the OFFSET + parameter of fseek is of type LONG INT, not big enough for big files. + Use fseeko instead for big files if it's available on the system. + SLU - 2007/4/5 + - Fixed a bug in H5Sselect_valid() that caused an incorrect value to + be returned (0) instead of FAIL on error conditions such as the + selection or extent not being defined. CMC - 2007/01/17 + - Fixed the MULTI driver problem (Bug #731) that corruptted the data. + SLU - 2007/1/12 + - Fixed file corruption bug which could write an incorrect number of + messages to an object's header under certain circumstances. + Generally, the sequence of actions to generate this bug looks + like this: + - Create an object + - Close the file + - Re-open the file + - Add 2 (or more) attributes to the object + - Close the file + - Re-open the file + - Delete one of the attributes on the object + - Add a smaller attribute to the object + - Delete the smaller atttribute on the object + - Add a larger attribute on the object + + After this, the number of header messages stored for the object + will be off by one. Other sequences of modifying attributes on an + object could also trigger this bug. If you are opening an + object and the bottom few messages of the HDF5 error stack + resembles this, the object has been affected by this bug: + + #007: ../../hdf5_v1.6/src/H5C.c line 3887 in H5C_load_entry(): unable to load entry + major(08): Meta data cache layer + minor(40): Unable to load metadata into cache + #008: ../../hdf5_v1.6/src/H5Ocache.c line 332 in H5O_load(): corrupt object header - too few messages + major(12): Object header layer + minor(40): Unable to load metadata into cache + + Specifically, "corrupt object header" is the best string to search + for in the HDF5 error stack output. + + If your files have been affected by this bug, or you are concerned + that your files might have been, please contact the HDF Helpdesk + at help@hdfgroup.org for a tool to detect and repair files + affected by this problem. QAK - 2006/6/16 + - Fixed various problems with retrieving names of objects, especially + with mounted files. QAK - 2005/12/25 + - Fixed core dump when closing root groups opened through two different + file handles that operate on the same actual file. QAK - 2005/10/02 + - Corrected errors when performing various operations on a group opened + by dereferencing an object reference. QAK - 2005/07/30 + - Fixed a bug with named datatypes where a copy of a named datatype + used to create a dataset would accidentally use the original + named datatype for the dataset's datatype. QAK - 2005/07/23 + - Made H5Fget_name() be consistent and always return name of actual + file the ID is in. (Instead of the name of the top file in a + file mounting hierarchy). QAK - 2005/07/19 + - Reworked internal file mounting semantics to hopefully eliminate + mounting problems. We now require that files that are mounting + together all have the same "file close degree". QAK - 2005/07/19 + - More bug fixes on holding open files that are mounted and have + IDs open. QAK - 2005/07/14 + - Don't unmount child files until the parent file actually closes. + (Previously, if an object is holding open a file, the child files + would get unmounted too early). QAK - 2005/07/05 + - Fixed bug where unmounted files could cause the library to go into + an infinite loop when shutting down. QAK - 2005/06/30 + - The library didn't save the information of family driver in file. + The original file member size was lost after file was closed (see + bug #213). This has been fixed by saving driver name and member + file size in the superblock. SLU - 2005/6/24 + - Fixed bug with hyperslab selections that use selection offsets and + operate on chunked datasets going into infinite loop or dumping + core. QAK - 2005/06/17 + - Corrected memory leak and possible corruption when opening a group. + QAK - 2005/06/17 + - Added check for opaque datatype tags being too long (check against + H5T_OPAQUE_TAG_MAX, currently set to 256). QAK - 2005/06/14 + - Fixed various errors in maintaining names for open objects in the + face of unusual mount & unmount operations. QAK - 2005/06/08 + - "SEMI" and "STRONG" file close degree settings now apply only to the + particular file ID being closed, instead of operating on all open + file IDs for a given file. QAK - 2005/06/01 + - For family driver, the library didn't save member size in file. + When file is reopened, the size of 1st member file determine the + member size. Now member size is saved in file and is used to + define member file size. Wrong file access property of member size + will result in a failure. Using any other driver except family + will cause library to return error. So is multi driver. SLU - + 2005/05/24 + - Fixed error in opening object in group that was opened in mounted + file which has been unmounted. QAK - 2005/03/17 + - Fixed a racing condition in MPIPOSIX virtual file drive close + function. Now all processes must completed the close before any + of them is returned. This prevents some "faster" processes start + accessing the file for another purpose (e.g., open with truncate) + while other "slower" processes have not closed the same file with + the previous purpose. AKC - 2005/03/01 + - H5Tget_member_value calls for enum datatype didn't return correct + value if H5Tenum_valueof was called first. It's fixed. SLU - + 2005/02/08 + - For variable-length string, H5Tget_class returned H5T_STRING as its + class. But H5Tdetect_class and H5Tget_member_class considered it + as H5T_VLEN. This is fixed to let all these 3 functions treat it + as H5T_STRING. SLU - 2005/02/08 + - The byte order of 1-byte integer types was fixed as little endian + even on a big-endian machine. This has been corrected. SLU - + 2005/02/07 + - Fix segmentation fault when calling H5Fflush with an attribute that + hasn't had a value written to it open. QAK - 2004/10/18 + - Back up supporting bitfield and time types in H5Tget_native_type. + Leave it to future support. The function simply returns error + message of "not support" for bitfield and time types. + SLU - 2004/10/5 + - Fixed address check in Core VFL driver to avoid spurious address/size + overflows for odd valued addresses and/or sizes. QAK - 2004/09/27 + - Fixed parallel bug in which some processes attempted collective + I/O while others did independent I/O. Bug appeared when some + processes used point selections, and others didn't. JRM - 2004/9/15 + - Corrected error where dataset region references were written in an + incorrect way on Cray machines. PVN & QAK - 2004/09/13 + - The H5Tget_native_type now determines the native type for integers + based on the precision. This is to avoid cases of wrongly converting + an int to a short in machines that have a short of 8 bytes but with + 32bit precision (e.g Cray SV1). PVN - 2004/09/07 + - Changed H5Dread() to not overwrite data in an application's buffer + with garbage when accessing a chunked dataset with an undefined + fill value and an unwritten chunk is uncountered. QAK - 2004/08/25 + - Fixed error which could cause a core dump when a type conversion + routine was registered after a compound datatype had been + converted and then an equivalment compound datatype was converted + again. QAK - 2004/08/07 + - Fixed memory overwrite when encoding "multi" file driver information + for file's superblock. QAK - 2004/08/05 + - Fixed obscure bug where a filter which failed during chunk allocation + could allow library to write uncompressed data to disk but think + the data was compressed. QAK - 2004/07/29 + - Fixed bug where I/O to an extendible chunked dataset with zero-sized + dimensions would cause library to fail an assertion. + QAK - 2004/07/27 + - Fixed bug where chunked datasets which have filters defined, + allocation time set to "late" and whose chunks don't align with + the dataspace bounds could have incorrect data stored when + overwriting the entire dataset on the first write. QAK - 2004/07/27 + - Added check to ensure that dataspaces have extents set. JML-2004/07/26 + - Fixed bug on some Solaris systems where HDF5 would try to use + gettimeofday() when that function didn't work properly. + JML - 2004/07/23 + - Fixed bug in H5Sset_extent_simple where setting maximum size to + non-zero, then to zero would cause an error. JML - 2004/07/20 + - Allow NULL pointer for buffer parameter to H5Dread & H5Dwrite + when not writing data ("none" selection or hyperslab or point + selection with no elements defined). QAK - 2004/07/20 + - Calling H5Gcreate() on "/" or "." throws an error instead of + failing quietly. JML - 2004/07/19 + - Fixed bug where setting file address size to be very small could + trigger an assert if the file grew to more than 64 KB. Now throws + an error and data can be recovered. JL/NF - 2004/07/14 + - Fixed bug where "resurrecting" a dataset was failing. + QAK - 2004/07/14 + - Fixed bug where incorrect data could be read from a chunked dataset + after it was extended. QAK - 2004/07/12 + - Fixed failure to read data back from file of compound type with + variable-length string as field. SLU - 2004/06/10 + - Fixed potential file corruption bug when a block of metadata could + overlap the end of the internal metadata accumulator buffer and + the buffer would be extended correctly, but would incorrectly + change it's starting address. QAK - 2004/06/09 + - Opaque datatype with no tag failed for some operations. Fixed. + SLU - 2004/6/3 + - Fixed potential file corruption bug where dimensions that were + too large (a value greater than could be represented in 32-bits) + could cause the incorrect amount of space to be allocated in a + file for the raw data for the dataset. QAK - 2004/06/01 + - Fixed dtypes "sw long double -> double" failure in QSC class + machines. AKC - 2004/4/16 + - Fixed problem with fletcher32 filter when converting data of different + endianess. PVN - 2004/03/10 + - Fixed problem with H5Tget_native_type() not handling opaque fields + correctly. QAK - 2004/01/31 + - Fixed several errors in B-tree deletion code which could cause a + B-tree (used with groups and chunked datasets) to become corrupt + with the right sequence of deleted objects. QAK - 2004/01/19 + - Fixed small internal memory leaks of fill-value information. + QAK - 2004/01/13 + - Fixed bug that caused variable-length datatypes (strings or sequences) + used for datasets in files with objects that were unlinked to + fail to be read/written to a file. QAK - 2004/01/13 + - Detect situation where szip 'pixels per block' is larger than the + fastest changing dimension of a dataset's chunk size and disallow + this (due to limits in szip library). QAK - 2003/12/31 + - Fixed bug with flattened hyperslab selections that would generate + incorrect hyperslab information with certain high-dimensionality + combinations of start/stride/count/block information. + QAK - 2003/12/31 + - Fixed bug with variable-length datatypes used in compound datatypes. + SLU - 2003/12/29 + - Fixed bug in parallel I/O routines that would cause reads from + "short datasets" (datasets which were only partially written out) + to return invalid data. QAK & AKC - 2003/12/19 + - Fixed bug where scalar dataspaces for attributes were reporting as + simple dataspaces. QAK - 2003/12/13 + - Fixed problem with selection offsets of hyperslab selections in + chunked datasets causing the library to go into an infinite loop. + QAK - 2003/12/13 + - Fixed H5Giterate to avoid re-using index parameter after iteration + callback has been called (allows iteration callback to modify the + index parameter itself). QAK - 2003/12/06 + - Fixed various floating-point conversion problems, including a + change which could corrupt data when converting from double->float. + QAK - 2003/11/24 + - Changed "single process" metadata writing in library to collective + I/O by all processes, in order to guarantee correct data being + written with MPI-I/O. QAK - 2003/11/20 + - Fixed problems with fill values and variable-length types and also + I/O on VL values that were set to NULL. QAK - 2003/11/08 + - Fixed problems with MPI datatypes that caused ASCI Q machine to + hang. QAK - 2003/10/28 + - Removed HDF5_MPI_PREFER_DERIVED_TYPES environment variable support, + since it had no benefit. QAK - 2003/10/28 + - Single hyperslab selections (which were set with only one call to + H5Sselect_hyperslab) that had dimensions that could be "flattened" + but were interspersed with dimensions that could not be flattened + were not correctly handled, causing core dumps. QAK - 2003/10/25 + - Fixed incorrect datatype of the third parameter to the Fortran90 + h5pset(get)_cache_f subroutine (INTEGER to INTEGER(SIZE_T)) + EIP - 2003/10/13 + - Fixed problems with accessing variable-length data datatypes on + Crays. QAK - 2003/10/10 + - Fixed potential file corruption bug when too many object header + messages (probably attributes, from a user perspective) were + inserted into an object header and certain other conditions were + met. QAK - 2003/10/08 + - Changed implementation of internal ID searching algorithm to avoid + O(n) behavior for many common cases. QAK - 2003/10/06 + - Allow partial parallel writing to compact datasets. QAK - 2003/10/06 + - Correctly create reference to shared datatype in attribute, instead + of making a copy of the shared datatype in the attribute. + QAK - 2003/10/01 + - Revert changes which caused files >2GB to fail when created with + MPI-I/O file driver on certain platforms. QAK - 2003/09/16 + - Allow compound datatypes to grow in size. SLU - 2003/09/10 + - Detect if a type is already packed before attempting to pack it + again or check if it is locked. SLU - 2003/09/10 + - Corrected bug when opening a file twice with read-only permission + for one open and then closing the read-only access file ID would + generate an error. QAK - 2003/09/10 + - Corrected bug in repeated calls to H5Pget_access_plist() which would + incorrectly manage reference counts of internal information and + eventually blow up. QAK - 2003/09/02 + - Return rank of the array datatype on successful call to + H5Tget_array_dims(). QAK - 2003/08/30 + - Corrected bug in H5Tdetect_class which was not correctly detecting + datatype classes of fields in nested compound datatypes in some + circumstances. QAK - 2003/08/30 + - Corrected bug in sieve buffer code which could cause loss of data + when a small dataset was created and deleted in quick succession. + QAK - 2003/08/27 + - Corrected bug in H5Gget_objname_by_idx which was not allowing NULL + for the name when just querying for the object name's length. + QAK - 2003/08/25 + - Corrected bug in variable-length string handling which could + generate a core dump on writing variable-length strings as part + of a compound datatype on certain architectures. QAK - 2003/08/25 + - Corrected bug in H5Tget_native_type which would incorrectly compute + the size of certain compound datatypes and also incorrectly + compute the offset of the last field for those compound datatypes. + QAK - 2003/08/25 + - Corrected bug in H5Tget_native_type which would drop string datatype + metadata (padding, etc.) QAK - 2003/08/25 + - Corrected bugs in H5Gget_num_objs, H5Gget_objname_by_idx and + H5Gget_objtype_by_idx to allow them to accept location IDs, not just + group IDs. QAK - 2003/08/21 + - Corrected bug when using scalar dataspace for memory selection and + operating on chunked dataset. QAK - 2003/08/18 + - Corrected bugs with multiple '/' characters in names for H5Glink + and H5Gunlink. QAK - 2003/08/16 + - Corrected bug with user blocks that didn't allow a user block to + be inserted in front of a file after the file was created. + QAK - 2003/08/13 + - Corrected errors with using point selections to access data in + chunked datasets. QAK - 2003/07/23 + - Corrected error with variable-length datatypes and chunked datasets + caused H5Dwrite to fail sometimes. QAK - 2003/07/19 + - Modified library and file format to support storing indexed storage + (chunked dataset) B-tree's with non-default internal 'K' values. + QAK - 2003/07/15 + - Returned H5T_BKG_TEMP support to library after it was accidentally + removed. QAK - 2003/07/14 + + Configuration + ------------- + - Configure can now use any tr command. No more need for + defining variable TR nor is it supported. -AKC 2006/05/19 + - Parallel I/O with the MPI-I/O driver will no longer work if the + filesystem is not POSIX compliant. The "HDF5_MPI_1_METAWRITE" + environment variable has been removed. QAK - 2004/01/30 + - Fixed the error that cause "make install" to fail because of the + macro definition syntax of "prefix?=..." AKC - 2003/07/22 + + Performance + ------------- + - Optimized I/O for enumerated datatypes that are a superset of source + enumerated datatype. QAK - 2005/03/19 + - More optimizations to inner loops of datatype conversions for + integers and floats which give a 10-50% speedup. QAK - 2003/11/07 + - Hoisted invariant 'if/else's out of inner datatype conversion loop for + integer and floating-point values, giving about a 20% speedup. + QAK - 2003/10/20 + + Tools + ----- + - Fixed h5dump regarding the display of blocks in hyperslab + selections. PVN 2008/01/16 + - Fixed h5diff regarding the display of NaN (Not a Number) + values. PVN 2008/01/16 + - Fixed h5dump regarding the parsing of binary output parameters. + PVN 2008/01/16 + - Fixed memory problems in h52gif and gif2h5. PVN 2008/01/16 + - Fixed h5repack dealing with NULL references. PVN 2008/01/16 + - Fixed h5dump & h5ls to display attributes in "name" order, rather + than the order they are encountered in the object header. + QAK - 2007/10/04 + - Fixed h5dump regarding the display of named datatypes + attributes. PVN 2007/03/13 + - Fixed h5dump regarding the display of group comments. PVN + 2007/03/13 + - Fixed h5dump regarding the display of hardlinks pointing + to the root group. PVN 2007/03/13 + - Fixed h5diff percentage option -p. PVN 2007/03/05 + - Fixed h5dump that caused array indices greater than 2 ^32-1 + not to be printed correctly - PVN 2007/2/19 + - Fixed h5dump to print attributes data in ASCII if -r option is used. + AKC - 2004/11/18 + - Fixed space utilization reported in h5ls to correct error in formula + used. QAK - 2004/10/22 + - Fixed h5redeploy which sometimes complain too many argument for the + test command. (The complain did not hinder the h5redploy to + proceed correctly.) AKC - 2003/11/03 + - Fixed a segmentation fault of h5diff when percentage option is used. + AKC - 2003/08/27 + - Switched away from tools using internal "fixtype" function(s) to use + H5Tget_native_type() internally. QAK - 2003/08/25 + + + Documentation + ------------- + + + F90 APIs + -------- + - h5pget_driver_f was returning information that could not be + interpreted by fortran application program; fixed. EIP - 2005/04/10 + + +Platforms Tested +================ +Platforms marked with * were not tested for hdf5-1.8.0-rc* release +(This information is somewhat out of date and may be inaccurate. It will be + updated for a later release) + +* AIX 5.2 (32/64 bit) xlc 8.0.0.11 + xlC 8.0 + xlf 10.01.0000.0 + mpcc_r 6.0.0.8 + mpxlf_r 8.1.1.7 +* AIX 5.3 (32/64 bit) xlc 7.0.0.8 + xlC 7.0.0.8 + xlf 09.01.0000.0007 +* Cray X1 water 3.0.35 Cray Standard C Version 5.4.0.7.4 + Cray Fortran 5.4.0.7.3 + Cray C++ 5.4.0.7.4 + FreeBSD 6.2-STABLE i386 gcc 3.4.6 [FreeBSD] 20060305 + (duty) g++ 3.4.6 [FreeBSD] 20060305 + gcc 4.2.1 20080123 + g++ 4.2.1 20080123 + gfortran 4.2.1 20070620 + FreeBSD 6.2-STABLE amd64 gcc 3.4.6 [FreeBSD] 20060305 + (liberty) g++ 3.4.6 [FreeBSD] 20060305 + gcc 4.2.1 20080123 + g++ 4.2.1 20080123 + gfortran 4.2.1 20080123 + +* HP-UX B.11.23 HP aC++/ANSI C B3910B A.06.00 + HP F90 v2.9.2 + HP aC++/ANSI C B3910B A.06.00 + IRIX64 6.5 (64 & n32) MIPSpro cc 7.4.4m + F90 MIPSpro 7.4.4m + C++ MIPSpro cc 7.4.4m + +* Linux 2.6.9 (RHEL4) Intel 10.0 compilers + (abe.ncsa.uiuc.edu) + Linux 2.4.21-47 gcc 3.2.3 20030502 + (osage) + Linux 2.6.9-42.0.10 gcc 3.4.6 20060404 + (kagiso) PGI 7.0-7 (pgcc, pgf90, pgCC) + Intel 9.1 (icc, ifort, icpc) + Linux 2.6.16.27 x86_64 AMD gcc 4.1.0 (SuSE Linux), g++ 4.1.0, g95 (GCC 4.0.3) + (smirom) PGI 6.2-5 (pgcc, pgf90, pgCC) + Intel 9.1 (icc, iort, icpc) + Linux 2.6.5-7.252.1-rtgfx #1 + SMP ia64 Intel(R) C++ Version 9.0 + (cobalt) Intel(R) Fortran Itanium(R) Version 9.0 + SGI MPI + SunOS 5.8 32,46 Sun WorkShop 6 update 2 C 5.3 + (Solaris 2.8) Sun WorkShop 6 update 2 Fortran 95 6.2 + Sun WorkShop 6 update 2 C++ 5.3 +* SunOS 5.10 i86pc Sun C 5.7 + Sun Fortran 95 8.1 + Sun C++ 5.7 + SunOS 5.10 cc: Sun C 5.8 + (linew) f90: Sun Fortran 95 8.2 + CC: Sun C++ 5.8 + Xeon Linux 2.4.21-32.0.1.ELsmp-perfctr-lustre + (tungsten) gcc 3.2.2 20030222 + Intel(R) C++ Version 9.0 + Intel(R) Fortran Compiler Version 9.0 + IA-64 Linux 2.4.21.SuSE_292.til1 ia64 + (NCSA tg-login) gcc 3.2.2 + Intel(R) C++ Version 8.1 + Intel(R) Fortran Compiler Version 8.1 + mpich-gm-1.2.5..10-intel-r2 + Windows XP + Visual Studio .NET + Visual Studio 2005 w/ Intel Fortran 9.1 + Cygwin(native gcc compiler and g95) + MinGW(native gcc compiler and g95) + Windows XP x64 + Visual Studio 2005 w/ Intel Fortran 9.1 + Windows Vista + Visual Studio 2005 + + MAC OS 10.4 (Intel) gcc i686-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 + G95 (GCC 4.0.3 (g95 0.91!) Nov 21 2006) +* Alpha Open VMS 7.3 + + +Supported Configuration Features Summary +(This table was not modified for 1.8.0-rc* release; for information contact help@hdfgroup.org) +======================================== + + In the tables below + y = tested and supported + n = not supported or not tested in this release + x = not working in this release + dna = does not apply + ( ) = footnote appears below second table + <blank> = testing incomplete on this feature or platform + +Platform C F90 F90 C++ zlib SZIP + parallel parallel +SunOS5.8 64-bit n y n y y y +SunOS5.8 32-bit n y n y y y +SunOS5.10 64-bit y(1) y n y y y +SunOS5.10 32-bit y(1) y n y y y +IRIX64_6.5 64-bit n y y y y y +IRIX64_6.5 32-bit n n n n y y +Cray XT3 (16) n n n n n n +AIX-5.2 & 5.3 32-bit y y y y y y +AIX-5.2 & 5.3 64-bit y y y y y y +Windows XP n y(15) n(15) y y y +Windows XP x64 n y(15) n(15) y y y +Windows Vista n n n y y y +Mac OS X 10.4 PowerPC n n +FreeBSD 4.11 n n n y y y +RedHat EL3 W (3) y(1a) y(10) y(1a) y y y +RedHat EL3 W Intel (3) n y n y y n +RedHat EL3 W PGI (3) n y n y y n +SuSe x86_64 gcc (3,12) y(1a) y(11) n y y y +SuSe x86_64 Int (3,12) n y(13) n y y n +SuSe x86_64 PGI (3,12) n y(8) n y y y +Linux 2.4 Xeon C + Lustre Intel (3,6) n y n y y n +Linux 2.6 SuSE ia64 C + Intel (3,7) y y y y y n +Linux 2.6 SGI Altix + ia64 Intel (3) y y y y y y +Alpha OpenVMS 7.3.2 n y n y n n + + + +Platform Shared Shared Shared static- Thread- + C libs F90 libs C++ libs exec safe +Solaris2.8 64-bit y y y x y +Solaris2.8 32-bit y y y x y +Solaris2.10 64-bit y x y +Solaris2.10 32-bit y x y +IRIX64_6.5 64-bit y y n y y +IRIX64_6.5 32-bit y dna y y y +HPUX11.00 y n y x n +HPUX11.23-32bit y n n y n +HPUX11.23-64bit y dna n y n +Cray XT3 (16) n n n n n +AIX-5.2 & 5.3 32-bit n n n y n +AIX-5.2 & 5.3 64-bit n n n y n +Windows XP y y(15) y y y +Windows XP x64 y y(15) y y y +Windows Vista y n n y y +Mac OS X 10.3 y y n +Mac OS X 10.4 PowerPC +FreeBSD 4.11 y n y y y +RedHat EL3 W (3) y y(10) y y y +RedHat EL3 W Intel (3) y y y y n +RedHat EL3 W PGI (3) y y y y n +SuSe x86_64 W GNU (3,12) y y y y y +SuSe x86_64 W Int (3,12) y y y y(14) n +SuSe x86_64 W PGI (3,12) y y y y(14) n +Linux 2.4 Xeon C + Lustre Intel (6) y y y y n +Linux 2.4 SuSE + ia64 C Intel (7) y y y y n +Linux 2.4 SGI Altix + ia64 Intel y y n +Alpha OpenVMS 7.3.2 n n n y n + + Notes: (1) Using mpich 1.2.6. + (1a) Using mpich2 1.0.6. + (2) Using mpt and mpich 1.2.6. + (3) Linux 2.6 with GNU, Intel, and PGI compilers, as indicated. + W or C indicates workstation or cluster, respectively. + + (6) Linux 2.4.21-32.0.1. Xeon cluster with ELsmp_perfctr_lustre + and Intel compilers + (7) Linux 2.4.21, SuSE_292.till. Ia64 cluster with Intel compilers + (8) pgf90 + (9) With Compaq Visual Fortran 6.6c compiler. + (10) With PGI and Absoft compilers. + (11) PGI and Intel compilers for both C and Fortran + (12) AMD Opteron x86_64 + (13) ifort + (14) Yes with C and Fortran, but not with C++ + (15) Using Visual Studio 2005 or Cygwin + (16) Not tested for this release. + Compiler versions for each platform are listed in the preceding + "Platforms Tested" table. + + + +Known Problems +============== +* We discovered two problems when running collective IO parallel HDF5 tests + with chunking storage on ChaMPIon MPI compiler on tungsten, a linux + cluster at NCSA. + Under some complex selection cases, + 1) MPI_Get_element returns the wrong value. + 2) MPI_Type_struct also generates wrong derived data type and corrupt data + may be generated. + This only happens when turning on collective IO with chunking storage + with some complex selections. We haven't found these problems on other + MPI-IO compilers. If you encounter these problems, you may use Independent IO + instead. + + Change the following line in your code: + H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE); + + to + H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_INDEPENDENT); + + KY - 2007/08/24 + +* For SNL, spirit/liberty/thunderbird: The serial tests pass but parallel + tests failed with MPI-IO file locking message. AKC - 2007/6/25. +* On Intel 64 Linux cluster (RH 4, Linux 2.6.9) with Intel 10.0 compilers use + -mp -O1 compilation flags to build the libraries. Higher level of optimization + causes failures in several HDF5 library tests. +* For HPUX 11.23 many tools tests failed for 64-bit version when linked to the + shared libraries (tested for 1.8.0-beta2) +* For SNL, Red Storm: only paralle HDF5 is supported. The serial tests pass + and the parallel tests also pass with lots of non-fatal error messages. +* For LLNL, uP: both serial and parallel pass. Zeus: serial passes but + parallel fails with a known proglem in MPI. ubgl: serial passes but + parallel fails. +* on SUN 5.10 C++ test fails in the "Testing Shared Datatypes with Attributes" test +* configuring with --enable-debug=all produces compiler errors on most + platforms. Users who want to run HDF5 in debug mode should use + --enable-debug rather than --enable-debug=all to enable debugging + information on most modules. +* On Mac OS 10.4, test/dt_arith.c has some errors in conversion from long + double to (unsigned) long long and from (unsigned)long long to long double. +* On Altix SGI with Intel 9.0 testmeta.c would not compile with -O3 + optimization flag. +* On VAX, Scaleoffset filter isn't supported. The filter cannot be applied to + HDF5 data generated on VAX. Scaleoffset filter only supports IEEE standard + for floating-point data. +* On Cray X1, a lone colon on the command line of h5dump --xml (as in + the testh5dumpxml.sh script) is misinterpereted by the operating system + and causes an error. +* On mpich 1.2.5 and 1.2.6, we found that if more than two processes + contribute no IO and the application asks to do IO with collective, we found + that when using 4 processors, a simple collective write will be hung + sometimes. This can be verified with t_mpi test under testpar. +* On IRIX6.5, when C compiler version >7.4, the complicate MPI derived data type + code will work. However, the user should be aware to enlarge MPI_TYPE_MAX environment + variable to some certian value in order to use collective irregular selection code. + For example, the current parallel HDF5 test needs to enlarge MPI_TYPE_MAX to + 200,000 to make the test pass. +* The dataset created or rewritten with the v1.6.3 library or after can't + be read with the v1.6.2 library or before when Fletcher32 EDC(filter) is + enabled. There was a bug in the calculating code of the Fletcher32 + checksum in the library before v1.6.3. The checksum value wasn't consistent + between big-endian and little-endian systems. This bug was fixed in + Release 1.6.3. However, after fixing the bug, the checksum value is no + longer the same as before on little-endian system. The library release + after 1.6.4 can still read the dataset created or rewritten with the library + of v1.6.2 or before. SLU - 2005/6/30 +* For the version 6(6.02 and 6.04) of Portland Group compiler on AMD Opteron + processor, there's a bug in the compiler for optimization(-O2). The library + failed in several tests but all related to multi driver. The problem has + been reported to the vendor. +* On IBM AIX systems, parallel HDF5 mode will fail some tests with error + messages like "INFO: 0031-XXX ...". This is from the command poe. + Set the environment variable MP_INFOLEVEL to 0 to minimize the messages + and run the tests again. + The tests may fail with messages like "The socket name is already + in use". HDF5 does not use sockets (except for stream-VFD). This is + due to problems of the poe command trying to set up the debug socket. + Check if there are many old /tmp/s.pedb.* staying around. These are + sockets used by the poe command and left behind due to failed commands. + Ask your system administrator to clean them out. Lastly, request IBM + to provide a mean to run poe without the debug socket. + +* The C++ library's tests fails when compiling with PGI C++ compiler. The + workaround until the problem is correctly handled is to use the + flag "--instantiate=local" prior to the configure and build steps, as: + setenv CXX "pgCC --instantiate=local" for pgCC 5.02 and higher + + +* The stream-vfd test uses ip port 10007 for testing. If another + application is already using that port address, the test will hang + indefinitely and has to be terminated by the kill command. To try the + test again, change the port address in test/stream_test.c to one not + being used in the host. + +* The --enable-static-exec configure flag fails to compile for Solaris + platforms. This is due to the fact that not all of the system + libraries on Solaris are available in a static format. + + The --enable-static-exec configure flag also fails to correctly compile + on IBM SP2 platform for the serial mode. The parallel mode works fine + with this option. + + It is suggested that you don't use this option on these platforms + during configuration. + +* With the gcc 2.95.2 compiler, HDF 5 uses the `-ansi' flag during + compilation. The ANSI version of the compiler complains about not being + able to handle the `long long' datatype with the warning: + + warning: ANSI C does not support `long long' + + This warning is innocuous and can be safely ignored. + + +* The Stream VFD was not tested yet under Windows. It is not supported + in the TFLOPS machine. + + +* The ./dsets tests failed in the TFLOPS machine if the test program, + dsets.c, is compiled with the -O option. The hdf5 library still works + correctly with the -O option. The test program works fine if it is + compiled with -O1 or -O0. Only -O (same as -O2) causes the test + program to fail. + +* Certain platforms give false negatives when testing h5ls: + - Cray J90 and Cray T90IEEE give errors during testing when displaying + some floating-point values. These are benign differences due to + the different precision in the values displayed and h5ls appears to + be dumping floating-point numbers correctly. + +* Before building HDF5 F90 Library from source on Crays + replace H5Aff.f90, H5Dff.f90 and H5Pff.f90 files in the fortran/src + subdirectory in the top level directory with the Cray-specific files + from this site: + ftp://www.hdfgroup.uiuc.edu/pub/outgoing/hdf5/hdf5-1.8.0-pre/PATCH/ + +* Not all platforms behave correctly with szip's shared libraries. Szip is + disabled in these cases, and a message is relayed at configure time. Static + libraries should be working on all systems that support szip, and should be + used when shared libraries are unavailable. There is also a configure error + on Altix machines that incorrectly reports when a version of szip without + an encoder is being used. + +* On some platforms that use Intel and Absoft compilers to build HDF5 fortran library, + compilation may fail for fortranlib_test.f90, fflush1.f90 and fflush2.f90 + complaining about exit subroutine. Comment out the line + IF (total_error .ne. 0) CALL exit (total_error) + +* On IA32 and IA64 systems, if you use a compiler other than GCC (such as + Intel's ecc or icc compilers), you will need to modify the generated + "libtool" program after configuration is finished. On or around line 104 of + the libtool file, there are lines which look like: + + # How to pass a linker flag through the compiler. + wl="" + + change these lines to this: + + # How to pass a linker flag through the compiler. + wl="-Wl," + + UPDATE: This is now done automatically by the configure script. However, if + you still experience a problem, you may want to check this line in the + libtool file and make sure that it has the correct value. + +* Information about building with PGI and Intel compilers is available in + INSTALL file sections 5.7 and 5.8 + +* On at least one system, (SDSC DataStar), the scheduler (in this case + LoadLeveler) sends job status updates to standard error when you run + any executable that was compiled with the parallel compilers. + + This causes problems when running "make check" on parallel builds, as + many of the tool tests function by saving the output from test runs, + and comparing it to an exemplar. + + The best solution is to reconfigure the target system so it no longer + inserts the extra text. However, this may not be practical. + + In such cases, one solution is to "setenv HDF5_Make_Ignore yes" prior to + the configure and build. This will cause "make check" to continue after + detecting errors in the tool tests. However, in the case of SDSC DataStar, + it also leaves you with some 150 "failed" tests to examine by hand. + + A second solution is to write a script to run serial tests and filter + out the text added by the scheduler. A sample script used on SDSC + DataStar is given below, but you will probably have to customize it + for your installation. + + Observe that the basic idea is to insert the script as the first item + on the command line which executes the the test. The script then + executes the test and filters out the offending text before passing + it on. + + #!/bin/csh + + set STDOUT_FILE=~/bin/serial_filter.stdout + set STDERR_FILE=~/bin/serial_filter.stderr + + rm -f $STDOUT_FILE $STDERR_FILE + + ($* > $STDOUT_FILE) >& $STDERR_FILE + + set RETURN_VALUE=$status + + cat $STDOUT_FILE + + tail +3 $STDERR_FILE + + exit $RETURN_VALUE + + You get the HDF make files and test scipts to execute your filter script + by setting the environment variable "RUNSERIAL" to the full path of the + script prior to running configure for parallel builds. Remember to + "unsetenv RUNSERIAL" before running configure for a serial build. + + Note that the RUNSERIAL environment variable exists so that we can + can prefix serial runs as necessary on the target system. On DataStar, + no prefix is necessary. However on an MPICH system, the prefix might + have to be set to something like "/usr/local/mpi/bin/mpirun -np 1" to + get the serial tests to run at all. + + In such cases, you will have to include the regular prefix in your + filter script. + +* H5Ocopy() does not copy reg_ref attributes correctly when shared-message + is turn on. The value of the reference in the destination attriubte is + wrong. This H5Ocopy problem will affect h5copy tool + +%%%%1.6.7%%%% Release Information for hdf5-1.6.7 (31/January/08) + +HDF5 version 1.6.7 released on Thu Jan 31 21:09:10 CST 2008 +================================================================================ + +INTRODUCTION +============ +This document describes the differences between HDF5-1.6.6 and HDF5-1.6.7 +It contains information on the platforms tested and known problems in +HDF5-1.6.7. For more details, check the HISTORY.txt file in the HDF5 source. + +HDF5 documentation can be found in the distributed release source code +in the subdirectory doc/html/ or on the THG (The HDF Group) FTP server: + + ftp://ftp.hdfgroup.org/HDF5/docs/ + +Documentation for the current release in the HDF5 Release 1.6.x series is +also on the HDF web site: + + http://hdfgroup.org/HDF5/doc1.6/ + +For more information, see the HDF5 home page: + + http://hdfgroup.org/products/hdf5/ + +If you have any questions or comments, please see the HDF Support page +for a list of available resources: + + http://hdfgroup.org/services/support.html + + +CONTENTS +======== +- New Features +- Support for New Platforms, Languages and Compilers +- Bug Fixes since HDF5-1.6.6 +- Documentation +- Platforms Tested +- Supported Configuration Features Summary +- Known Problems + + +New Features +============ + Configuration: + ------------------------- + '--enable-stream-vfd' and '--disable-stream-vfd' are no longer valid + configure options because the stream I/O driver has ben removed from + the distribution. + + Source code distribution + ======================== + Library: + -------- + The stream I/O driver is not included with the HDF5 Library in this + release. The source code files hdf5/src/H5FDstream.c and + hdf5/src/H5FDstream.h and the driver ENUM value H5FD_STREAM have been + removed. + + Parallel Library: + ----------------- + None + + Tools: + ------ + None + + F90 API: + -------- + None + + C++ API: + -------- + None + + +Support for New Platforms, Languages and Compilers +================================================== + +No new platorms, languages, or compilers are supported in this release. + + +Bug Fixes since HDF5-1.6.6 Release +================================== + + Library + ------- + - H5Iget_name could not be used with an object identifier returned + by H5Rdereference; the function would not be able to determine + a valid object name. It has been fixed. SLU - 2008/1/30 + - Changed library's behavior for reading files that might have + corrupted object header information from a previous (buggy) + version of the library. By default, the library now rebuilds the + correct object header information instead of issuing an error. + Previous "strict" file format interpretation can be enabled with + the "--enable-strict-format-checks" configure option. + QAK - 2008/01/13 + - Fixed bug in H5Epush() which was clearing the error stack before + pushing new error value. QAK - 2007/08/23 + - Fixed bug in H5Ewalk() which was not passing back the return value + from error stack walking callback. QAK - 2007/08/23 + + + Configuration + ------------- + None + + + Performance + ------------- + None + + + Tools + ----- + None + + + Documentation + ------------- + None + + + F90 API + ------- + None + + + C++ API + ------- + None + + +Documentation +============= + HDF5 documentation can be found in the distributed release source + code in the subdirectory doc/html/ (start with index.html) or on the + THG (The HDF Group) FTP server: + + ftp://ftp.hdfgroup.org/HDF5/docs/ + + Online documentation for the current release in the HDF5 Release 1.6.x + series can be found on the THG web site: + + http://hdfgroup.org/HDF5/doc1.6/ + + A listing of interface changes from release to release can be found + in the document "HDF5 Software Changes from Release to Release": + + http://hdfgroup.org/HDF5/doc1.6/ADGuide/Changes.html + + Since the stream I/O driver is not included in this release, the + functions H5Pset_fapl_stream and H5Pget_fapl_stream and the stream + ENUM value H5FD_STREAM have been removed from the documentation. + + +Platforms Tested +================ + + AIX 5.2 (32/64 bit) xlc 8.0.0.11 + (datastar) xlC 8.0 + xlf 10.01.0000.0002 + + FreeBSD 6.2 (32- and 64-bit) gcc and g++3.4.6 + (duty and liberty) gcc and g++ 4.2.1 + + IRIX64 6.5 MIPSpro cc 7.4.4m + (ucar mop1 64 & n32) F90 MIPSpro 7.4.4m (64 only) + C++ MIPSpro cc 7.4.4m + + Linux 2.4.21-47.ELsmp #1 SMP gcc 3.2.3 + i686 i386 GNU/Linux + (osage) + + Linux 2.6.9-42.0.10.ELsmp #1 gcc (GCC) 3.4.6 + SMP i686 i386 G95 (GCC 4.0.3 (g95 0.91!) April 18 2007) + (kagiso) PGI C, Fortran, C++ 7.0-7 32-bit + Intel(R) C Compiler for 32-bit + applications, Version 9.1 + Intel(R) C++ Compiler for 32-bit + applications, Version 9.1 + Intel(R) Fortran Compiler for 32-bit + applications, Version 9.1 + Absoft 32-bit Fortran 95 10.0.4 + MPICH mpich2-1.0.6p1 compiled with + gcc 4.2.1 and G95 (GCC 4.0.3 (g95 0.91!) + + Linux 2.6.16.46-0.12-debug #1 Intel(R) C++ Version 10.0.025 + SMP ia64 GNU/Linux Intel(R) Fortran Itanium(R) Version 10.0.025 + (ucar hir1) + + Linux 2.6.16.46-0.14-smp #1 Intel(R) C++ for Intel(R) EM64T Ver. 9.1.037 + SMP x86_64 GNU/Linux Intel(R) Fortran Intel(R) EM64T Ver. 9.1.031 + (smirom) PGI C, Fortran, C++ Version 7.0-7 + for 64-bit target on x86-64 + tested for both 32- and 64-bit binaries + + Linux 2.6.5-7.287.3-sn2 #1 Intel(R) C++ Version 9.0 + Altix SMP ia64 Intel(R) Fortran Itanium(R) Version 9.0 + (cobalt) SGI MPI + + SunOS 5.8 32- and 64-bit Sun WorkShop 6 update 2 C 5.3 + (sol) Sun WorkShop 6 update 2 Fortran 95 6.2 + Sun WorkShop 6 update 2 C++ 5.3 + + SunOS 5.10 32- and 64-bit Sun WorkShop 6 update 2 C 5.8 + (linew) Sun WorkShop 6 update 2 Fortran 95 8.2 + Sun WorkShop 6 update 2 C++ 5.8 + Patch 121019-06 + + Xeon Linux 2.4.21-32.0.1.ELsmp-perfctr-lustre + (tungsten) Intel(R) C++ Version 9.0 + Intel(R) Fortran Compiler Version 9.0 + PGI C Version 6.0-5 + PGI C++ Version 6.0-5 + PGI Fortran Version 6.0-5 + gcc (GCC) 3.2.2 (Red Hat Linux 3.2.2-5) + + Xeon Linux 2.6.9-42.0.10.EL_lustre-1.4.10.1smp + (abe) Intel(R) C++ Version 10.0 + Intel(R) Fortran Compiler Version 10.0 + Open MPI 1.2.2 + + IA-64 Linux 2.4.21-309.tg1 #1 SMP + ia64 gcc (GCC) 3.2.2 + (NCSA tg-login) Intel(R) C++ Version 8.1 + Intel(R) Fortran Compiler Version 8.1 + mpich-gm-1.2.6..14-intel-r2 + + Windows XP Visual Studio 6.0 + Visual Studio .NET (with Intel Fortran 9.1) + Visual Studio 2005 (with Intel Fortran 9.1) + cygwin (gcc 3.4.4) + + Windows Vista Visual studio 2005 + MAC OS X Intel Darwin 8.10.1 + i686-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 + g95 0.91 + + +Supported Configuration Features Summary +======================================== + +Key: y = Tested and supported + n = Not supported or not tested in this release + C = Cluster + W = Workstation + ( ) = Footnote appears below second table + +Platform C F90 F90 C++ zlib SZIP + parallel parallel +Solaris2.8 32-bit n y n y n y +Solaris2.8 64-bit n y n n y y +Solaris2.10 32-bit n y n y y y +Solaris2.10 64-bit n y n n y y +IRIX64_6.5 32-bit n n n n y y +IRIX64_6.5 64-bit n y n n y y +WinXP Visual Studio 6.0 n n n y y y +WinXP CYGWIN n n n y y y +WinXP 2005 n y n y y y +WinXP .Net n y n y y y +WinVista 2005 n n n y y y +Mac OS X 10.4.10 n y n y y y +AIX-5.2 & 5.3 32- and 64-bit y y y y y y +FreeBSD 6.2 32- and 64-bit n n n y y y +RedHat Linux 2.4.21 W n n n n y n +RedHat Linux 2.6.9-42 i686 GNU (1) W y y y y y y +RedHat Linux 2.6.9-42 i686 Intel W n y n y y n +RedHat Linux 2.6.9-42 i686 PGI W n y n y y n +SuSE Linux 2.6.16 x86_64 GNU (1) W y y n y y y +SuSE Linux 2.6.16 x86_64 Intel W n y n y y n +SuSE Linux 2.6.16 x86_64 PGI W n y n y y n +RHEL 4 Linux 2.6.9 Xeon Lustre C n y n y y y +RedHat Linux 2.4 Xeon Lustre C n y n y y n +SuSE Linux 2.4 ia64 C y y y y y y +SuSe Linux 2.6.5 SGI Altix ia64 n y n y y y + + +Platform Shared static- Thread- + libraries(4) exec safe +Solaris2.8 32- and 64-bit y n y +Solaris2.10 32- and 64-bit y n y +IRIX64_6.5 32-bit y n y +IRIX64_6.5 64-bit y n y +WinXP Visual Studio 6.0 y n n +WinXP CYGWIN y n n +WinXP 2005 y n n +WinXP .Net y n n +WinVista 2005 y n n +Mac OS X 10.4.10 y n n +AIX-5.2 & 5.3 32- and 64-bit n n n +FreeBSD 6.2 32- and 64-bit y n n +RedHat Linux 2.4.21 W y n n +SuSE Linux 2.6.9-42 i686 GNU (1) W y n y +SuSE Linux 2.6.9-42 i686 Intel W y n n +SuSE Linux 2.6.9-42 i686 PGI W n n n +SuSE Linux 2.6.16 x86_64 GNU (1) W y n y +SuSE Linux 2.6.16 x86_64 Intel W y n n +SuSE Linux 2.6.16 x86_64 PGI W n n n +RHEL 4 Linux 2.6.9 Xeon Lustre C y n n +RedHat Linux 2.4 Xeon Lustre C y n n +SuSE Linux 2.4 ia64 C y n n +SuSe Linux 2.6.5 SGI Altix ia64 n n n + +Compiler versions for each platform are listed in the "Platforms Tested" +table found elsewhere in this file (RELEASE.txt). Unless otherwise noted, +compilers used are the system compilers. + +Footnotes: +(1) Fortran compiled with g95. + + +Known Problems +============== +* We discovered two problems when running collective IO parallel HDF5 tests + with chunking storage with the ChaMPIon MPI compiler on tungsten, a Linux + cluster at NCSA. + Under some complex selection cases, + 1) MPI_Get_element returns the wrong value. + 2) MPI_Type_struct also generates the wrong derived datatype and corrupt + data may be generated. + This only happens when turning on collective IO with chunking storage + with some complex selections. We haven't found these problems on other + MPI-IO compilers. If you encounter these problems, you may use Independent + IO instead. + + To avoid this problem, change the following line in your code: + H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE); + + to + H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_INDEPENDENT); + + KY - 2007/08/24 + +* QSC (an HP alpha-based OSF1 cluster) does not create h5pfc correctly. It + does not include the -lmpi properly. This will be fixed in the next + release. AKC - 2007/08/07. + +* On IRIX64 6.5 (UCAR SGI mop1), when testing HDF5 tools with an HDF5 shared + library, especially for h5repacktst and h52gifgentst, the following (or a + similar) error message may appear: + "523648:lt-h5repacktst: rld: Fatal Error: Cannot Successfully map soname + 'libh5test.so.1' under any of the filenames .......(bunch of directories) + " + And the testing will fail. + + We believe this is a libtool problem. One way to get rid of this is to + add the paths of libh5test.so.1 and libh5.so.1 to the shared library path. + + For 32-bit: + You may do this, under csh: + setenv LD_LIBRARYN32_PATH .......(existing paths):[full path of HDF5 + directory/test/.libs]:[full path of HDF5 directory/src/.libs] + + For 64-bit: + setenv LD_LIBRARY64_PATH ......(existing paths):[full path of HDF5 + directory/test/.libs]:[full path of HDF5 directory/src/.libs] + + NOTE: This problem ONLY affects the testing of the HDF5 library when you + build from source. It won't affect any applications that would like to link + with the HDF5 shared library since the shared library path needs to be set + anyway. KY - 2007/8/2 + +* QSC (an HP alpha-based OSF1 cluster) failed the testpar/testphdf5 sub-test + "calloc". All other tests passed. This indicates that a dataset using + chunked storage created by serial HDF5 may not work properly with parallel + HDF5. The calloc test can be skipped by running "prun ... testphdf5 -x + calloc". AKC - 2007/7/12. + +* The Intel C Compiler for the Linux x86_64 platform (EM64T-based, v8.1) has + an optimization error in the datatypes conversion code. Before running + configure, edit the file config/intel-flags by changing the setting of + PROD_CFLAGS from -O3 to -O0. Then run configure. AKC - 2005/11/10. + +* When testing parallel HDF5 with the C compiler version MIPSpro 7.4.3 on IRIX + 6.5, set the environment variable MPI_TYPE_MAX to be a bigger number, for + example 120000, in order to pass the complicated collective IO tests inside + the parallel HDF5 library. This is not a problem inside the parallel HDF5 + library. You can always set a bigger number on your system. KY - 2005/10/6 + +* A contiguous or chunked dataset created by a sequential version of HDF5 + might not be able to be modified with a parallel version of the library. + Use the H5Pset_alloc_time function with H5D_ALLOC_TIME_EARLY to set up the + dataset creation property list to avoid the problem. EIP - 2005/09/09 + +* A dataset created or rewritten with the v1.6.3 library or after can't + be read with the v1.6.2 library or before when Fletcher32 EDC (a filter) is + enabled. There was a bug in the calculating code of the Fletcher32 + checksum in the library before v1.6.3. The checksum value wasn't consistent + between big-endian and little-endian systems. This bug was fixed in + Release 1.6.3. However, after fixing the bug, the checksum value is no + longer the same as before on little-endian system. HDF5 library releases + after 1.6.4 can still read datasets created or rewritten with an HDF5 + library of v1.6.2 or before. SLU - 2005/7/8 + +* For version 6 (6.02 and 6.04) of the Portland Group compiler on AMD Opteron + processor, there's a bug in the compiler for optimization(-O2). The library + failed in several tests, all related to the multi driver. The problem has + been reported to the vendor. + +* test/big fails sometimes with the message "Possible overlap with another + region." The test selects regions randomly, and this error occurs when + two regions overlap each other; it is a bug in the test and not in + HDF5. Since the error is triggered by a random situation, it will + usually disappear if the test is re-run. + +* Newer SGI MIPSpro compilers (version 7.4.x) support C99 features but + have a "guard" statement in stdint.h that will #error and skip the rest + of the header file if the C99 option is not used explicitly. Hardsetting + $CC to c99 will resolve the problem. AKC - 2004/12/13 + +* On IBM AIX systems, parallel HDF5 mode will fail some tests with error + messages like "INFO: 0031-XXX ...". This is from the command poe. + Set the environment variable MP_INFOLEVEL to 0 to minimize the messages + and run the tests again. + + The tests may also fail with messages like "The socket name is already + in use". HDF5 does not use sockets. This is due to problems of the + poe command trying to set up the debug socket. Check whether there are + many old /tmp/s.pedb.* files staying around. These are sockets used by + the poe command and left behind due to failed commands. Ask your system + administrator to clean them out. Lastly, request IBM to provide a means + to run poe without the debug socket. + +* The h5dump tests may fail to match the expected output on some platforms + (e.g. parallel jobs, Windows) where the error messages directed to + "stderr" do not appear in the "right order" with output from stdout. + This is not an error. + +* The --enable-static-exec configure flag fails to compile for Solaris + platforms. This is due to the fact that not all of the system + libraries on Solaris are available in a static format. + + The --enable-static-exec configure flag also fails to correctly compile + on the IBM SP2 platform for the serial mode. The parallel mode works fine + with this option. + + The --enable-static-exec configure flag also fails to correctly compile + on the HPUX 11.00. + + It is suggested that you don't use this option on these platforms + during configuration. + +* Use the --disable-shared configure flag if building with an Absoft Fortran + compiler. + +* Information about building with PGI and Intel compilers is available in + INSTALL file sections 5.7 and 5.8. + +* In LANL QSC, the new cc compiler has problems converting small values of + long long (absolute values less than 1**-308) to double. This triggers + the test/dtypes to report failure in the following test: + Testing random sw long double -> double conversions + If -ieee is used, the converted doubles spread over the range 0.0 to + 10**-308. If -ieee is not used, the converted double values are mostly + 0.0, but occasionally appear as 10**-308. This has been reported to the + system staff. + + All other tests have passed. + +* On at least one system, SDSC DataStar, the scheduler (in this case + LoadLeveler) sends job status updates to standard error when you run + any executable that was compiled with the parallel compilers. + + This causes problems when running "make check" on parallel builds, as + many of the tool tests function by saving the output from test runs, + and comparing it to an exemplar. + + The best solution is to reconfigure the target system so it no longer + inserts the extra text. However, this may not be practical. + + In such cases, one solution is to "setenv HDF5_Make_Ignore yes" prior to + the configure and build. This will cause "make check" to continue after + detecting errors in the tool tests. However, in the case of SDSC DataStar, + it also leaves you with some 150 "failed" tests to examine by hand. + + A second solution is to write a script to run serial tests and filter + out the text added by the scheduler. A sample script used on SDSC + DataStar is given below, but you will probably have to customize it + for your installation. + + Observe that the basic idea is to insert the script as the first item + on the command line which executes the test. The script then + executes the test and filters out the offending text before passing + it on. + + #!/bin/csh + + set STDOUT_FILE=~/bin/serial_filter.stdout + set STDERR_FILE=~/bin/serial_filter.stderr + + rm -f $STDOUT_FILE $STDERR_FILE + + ($* > $STDOUT_FILE) >& $STDERR_FILE + + set RETURN_VALUE=$status + + cat $STDOUT_FILE + + tail +3 $STDERR_FILE + + exit $RETURN_VALUE + + You get the HDF5 make files and test scripts to execute your filter script + by setting the environment variable "RUNSERIAL" to the full path of the + script prior to running configure for parallel builds. Remember to + "unsetenv RUNSERIAL" before running configure for a serial build. + + Note that the RUNSERIAL environment variable exists so that we can + prefix serial runs as necessary on the target system. On DataStar, + no prefix is necessary. However, on an MPICH system, the prefix might + have to be set to something like "/usr/local/mpi/bin/mpirun -np 1" to + get the serial tests to run at all. + + In such cases, you will have to include the regular prefix in your + filter script. JM - 2004/9/15 + +%%%%1.6.6%%%% Release Information for hdf5-1.6.6 (16/August/08) + +HDF5 version 1.6.6 released on Thu Aug 16 11:17:10 CDT 2007 +================================================================================ + +INTRODUCTION +============ +This document describes the differences between HDF5-1.6.5 and +HDF5-1.6.6 It contains information on the platforms tested and +known problems in HDF5-1.6.6. For more details, check the HISTORY.txt +file in the HDF5 source. + +HDF5 documentation can be found in the distributed release source +code in the subdirectory doc/html/ or on the THG (The HDF Group) +ftp server (ftp.hdfgroup.org) in the directory: + + /HDF5/docs/ + +Documentation for the current release is also on the HDF web site: + + http://hdfgroup.org/HDF5/doc/ + +For more information, see the HDF5 home page at: + + http://hdfgroup.org/HDF5/ + +If you have any questions or comments, please send them to: + + help@hdfgroup.org + + +CONTENTS +======== +- New Features +- Support for New Platforms, Languages and Compilers +- Bug Fixes since HDF5-1.6.5 +- Documentation +- Platforms Tested +- Supported Configuration Features Summary +- Known Problems + + +New Features +============ + Configuration: + ------------------------- + - HDF5 now uses autoconf 2.61 to generate configure. MAM - 2007/7/25. + + Source code distribution + ======================== + Library: + -------- + - None + + Parallel Library: + ----------------- + - None + + Tools: + ------ + - h52gif and gif2h5: Both these tools were revised to include High + Level Image API support. Tests were added to /hl/tools/gif2h5. + PVN - 2007/04/13 + - h5dump: Added support for double long type H5T_NATIVE_LDOUBLE. + PVN - 2007/03/13 + - h5dump: Added support for binary output; see usage. PVN 2007/03/13 + - h5repack: Added support for reading and writing by hyperslabs for + large files. PVN - 2007/03/01 + - h5repack: A new option allows the copy to use the source file type + (default) instead of the previous conversion to native type. + PVN - 2007/03/01 + - h5repack: Added output of the percentage of compression achieved. + PVN - 2007/03/01 + - h5diff: Added support for comparing dataset regions. PVN - + 2007/02/20 + - h5diff: Added support for reading and comparing by hyperslabs for + large files. PVN - 2007/02/20 + - h5diff: Added printing of dataset dimensions along with dataset + name. + PVN - 2007/02/19 + + F90 API: + -------- + - None + + C++ API: + -------- + - Added support for Szip: DSetCreatPropList::setSzip - BMR 2007/01/24 + + +Support for New Platforms, Languages and Compilers +================================================== + - Added support for MAC Intel (Darwin 8.8.2) (gcc 4.0.1 and g95 0.91) + EIP - 2007/02/13 + - Added support for GNU C compiler version 4.2.1 for FreeBSD 6.2 + (32- and 64-bit) + + +Bug Fixes since HDF5-1.6.5 Release +================================== + + Library + ------- + - Fixed several bugs with writing fill values for datasets that have + a variable-length datatype or component datatype. QAK - +2007/06/19 + - STDIO driver didn't support files bigger than 2GB because the OFFSET + parameter of fseek is of type LONG INT, not big enough for big + files. Use fseeko instead for big files if it's available on the + system. SLU - 2007/4/5 + - Relaxed restrictions on attribute operations to allow a file ID to + be used as the "location ID". If a file ID is used, the attribute + operation will occur on the root group of the file. + QAK - 2007/02/09 + - Fixed a bug in H5Sselect_valid() that caused an incorrect value to + be returned (0) instead of FAIL on error conditions such as the + selection or extent not being defined. CMC - 2007/01/05 + - Fixed potential file corruption bug which could overwrite a portion + of an object's header when an attribute was renamed. If the new + name for the attribute was longer than the old name, it was +possible + that the attribute would grow enough to overwrite another message + in the object's header. QAK - 2007/01/02 + - Fixed file corruption bug which could write an incorrect number of + messages to an object's header under certain circumstances. + Generally, the sequence of actions to generate this bug looks + like this: + - Create an object. + - Close the file. + - Re-open the file. + - Add 2 (or more) attributes to the object. + - Close the file. + - Re-open the file. + - Delete one of the attributes on the object. + - Add a smaller attribute to the object. + - Delete the smaller atttribute on the object. + - Add a larger attribute on the object. + + After this, the number of header messages stored for the object + will be off by one. Other sequences of modifying attributes on an + object could also trigger this bug. If you are opening an + object and the bottom few messages of the HDF5 error stack + resembles the following, the object has been affected by this bug: + + #007: ../../hdf5_v1.6/src/H5C.c line 3887 in H5C_load_entry(): +unable to load entry + major(08): Meta data cache layer + minor(40): Unable to load metadata into cache + #008: ../../hdf5_v1.6/src/H5Ocache.c line 332 in H5O_load(): +corrupt object header - too few messages + major(12): Object header layer + minor(40): Unable to load metadata into cache + + Specifically, "corrupt object header" is the best string to search + for in the HDF5 error stack output. + + If your files have been affected by this bug, or you are concerned + that your files might have been, please contact the HDF Helpdesk + at help@hdfgroup.org for a tool to detect and repair files + affected by this problem. QAK - 2006/6/16 + + - Fixed various problems with retrieving names of objects, especially + with mounted files. QAK - 2005/12/25 + + Configuration + ------------- + - Changed to default to --disable-shared if parallel is enabled. + AKC - 2007/5/12 + - Corrected a coding error in configure when it tries to locate the + needed MPI and MPI-IO library for the fortran interface. + AKC - 007/5/9. + - Changed default fortran compiler to g95 when gcc is used. + AKC - 007/2/17. + - Configure can now use any tr command. No more need for + defining the variable TR, nor is it supported. AKC - 2006/05/20 + + Performance + ------------- + - None + + Tools + ----- + - Fixed a bug in h5dump regarding the display of named datatypes + attributes. PVN - 2007/03/13 + - Fixed a bug in h5dump regarding the display of group comments. + PVN - 2007/03/13 + - Fixed a bug in h5dump regarding the display of hardlinks pointing + to the root group. PVN - 2007/03/13 + - Fixed a bug in the h5diff percentage option -p. PVN - 2007/03/05 + - Fixed a bug in h5dump that caused array indices greater than 2^32-1 + not to be printed correctly. PVN - 2007/2/19 + + Documentation + ------------- + - Corrected errors and extended the descriptions in Reference Manual + entries for several functions. + + F90 API + ------- + - None + + C++ API + ------- + - Changed + StrType::StrType(const size_t& size); + to + StrType::StrType(const int dummy, const size_t& size); + because the first one clashed with + StrType::StrType(const hid_t existing_id); - BMR 2007/05/03 + - Wrappers of H5Rcreate had incorrect prototypes. Added these + overloaded functions: + IdComponent::reference(void* ref, const char* name, +DataSpace& + dataspace, H5R_type_t ref_type = H5R_DATASET_REGION) + IdComponent::void reference(void* ref, const char* name) + IdComponent::reference(void* ref, const H5std_string& name) + and will remove these incorrect member functions: + DataSet::Reference + DataType::Reference + Group::Reference + H5File::Reference + - Added wrappers for H5Rdereference as constructors: + DataSet(IdComponent& obj, void* ref); + Group(IdComponent& obj, void* ref); + DataType(IdComponent& obj, void* ref); + + +Documentation +============= + + HDF5 documentation can be found in the distributed release source + code in the subdirectory doc/html/ (start with index.html) or on the + THG (The HDF Group) ftp server (ftp.hdfgroup.org) in the directory: + + /HDF5/docs/ + + Online documentation for the current release can be found on the THG + web site: + + http://hdfgroup.org/HDF5/doc/ + + +Platforms Tested +================ + + AIX 5.2 (32/64 bit) xlc 6.0.0.8 + (datastar) xlC 6.0.0.9 + xlf 8.1.1.7 + mpcc_r 6.0.0.8 + mpxlf_r 8.1.1.7 + + AIX 5.3 (32/64 bit) xlc 7.0.0.0 + (copper) xlC 7.0. + xlf 9.1.0.3 + + FreeBSD 6.2 (32- and 64-bit) gcc and g++3.4.6 + (duty and liberty) gcc and g++ 4.2.1 + + HP-UX B.11.23 HP aC++/ANSI C B3910B A.06.02 + (sirius) HP F90 v3.1 (32-bit only) + HP aC++/ANSI C B3910B A.06.02 + + IRIX64 6.5 MIPSpro cc 7.4.4m + (ucar mop1 64 & n32) F90 MIPSpro 7.4.4m (64 only) + C++ MIPSpro cc 7.4.4m + + Linux 2.4.21-47.ELsmp #1 SMP gcc 3.2.3 + i686 i386 GNU/Linux + (osage) + + Linux 2.6.9-42.0.10.ELsmp #1 gcc (GCC) 3.4.6 + SMP i686 i386 G95 (GCC 4.0.3 (g95 0.91!) Nov 21 2006) + (kagiso) PGI C, Fortran, C++ 6.2-5 32-bit + icc (ICC) 9.1 + Intel(R) C++ Compiler for 32-bit + applications, Version 9.1 + Intel(R) Fortran Compiler for 32-bit + applications, Version 9.1 + Absoft 32-bit Fortran 95 10.0.4 + MPICH mpich2-1.0.4p1 compiled with + gcc 3.4.6 and G95 (GCC 4.0.3 (g95 0.91!) + + Linux 2.6.16.46-0.12-debug #1 + SMP ia64 GNU/Linux Intel(R) C++ Version 10.0.025 + (ucar hir1) Intel(R) Fortran Itanium(R) Version 10.0.025 + + Linux 2.6.16.46-0.14-smp #1 Intel(R) C++ for Intel(R) EM64T Ver. 9.1.037 + SMP x86_64 GNU/Linux Intel(R) Fortran Intel(R) EM64T Ver. 9.1.031 + (smirom) PGI C, Fortran, C++ Version 6.2-5 + for 64-bit target on x86-64 + tested for both 32- and 64-bit binaries + + Linux 2.6.5-7.283-rtgfx Altix + SMP ia64 Intel(R) C++ Version 9.0 + (cobalt) Intel(R) Fortran Itanium(R) Version 9.0 + SGI MPI + + OSF1 V5.1 (QSC) Compaq C V6.5-011 + (See "Known Problems.") HP Fortran V5.5A-3548 + Compaq C++ V6.5-036 + MPIX200_64_r13.4 + + SunOS 5.8 32- and 64-bit Sun WorkShop 6 update 2 C 5.3 + (sol) Sun WorkShop 6 update 2 Fortran 95 6.2 + Sun WorkShop 6 update 2 C++ 5.3 + + SunOS 5.10 32- and 64-bit Sun WorkShop 6 update 2 C 5.8 + (linew) Sun WorkShop 6 update 2 Fortran 95 8.2 + Sun WorkShop 6 update 2 C++ 5.8 + Patch 121019-06 + + Xeon Linux 2.4.21-32.0.1.ELsmp-perfctr-lustre + (tungsten) Intel(R) C++ Version 9.0 + Intel(R) Fortran Compiler Version 9.0 + PGI C Version 6.0 + PGI C++ Version 6.0 + PGI Fortran Version 6.0 + gcc (GCC) 3.2.2 (Red Hat Linux 3.2.2-5) + + Xeon Linux 2.6.9-42.0.10.EL_lustre-1.4.10.1smp + (abe) Intel(R) C++ Version 10.0 + Intel(R) Fortran Compiler Version 10.0 + Open MPI 1.2.2 + + IA-64 Linux 2.4.21.SuSE_292.til1 + ia64 gcc (GCC) 3.2.2 + (NCSA tg-login) Intel(R) C++ Version 8.0 + Intel(R) Fortran Compiler Version 8.0 + mpich-gm-1.2.5..10-intel-r2 + + Windows XP Visual Studio 6.0 + Visual Studio .NET (with Intel Fortran 9.0) + Visual Studio 2005 (with Intel Fortran 9.0) + cygwin (gcc 3.4.4) + + MAC OS X Intel Darwin 8.10.1 + i686-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 + g95 0.91 + + +Supported Configuration Features Summary +======================================== + +Key: y = Tested and supported + n = Not supported or not tested in this release + C = Cluster + W = Workstation + ( ) = Footnote appears below second table + +Platform C F90 F90 C++ zlib SZIP + parallel parallel +Solaris2.8 32- and 64-bit n y n y y y +Solaris2.10 32- and 64-bit n y n y y y +IRIX64_6.5 32-bit n n n n y y +IRIX64_6.5 64-bit n y n n y y +HPUX11.23-32bit n y n y y y +HPUX11.23-64bit n n n y y y +WinXP Visual Studio 6.0 n n n y y y +WinXP CYGWIN n n n y y y +WinXP 2005 n y n y y y +WinXP .Net n y n y y y +Mac OS X 10.4.10 n y n y y y +AIX-5.2 & 5.3 32- and 64-bit y y y y y y +FreeBSD 6.2 32- and 64-bit n n n y y y +RedHat Linux 2.4.21 W n n n y y y +SuSE Linux 2.6.9-42 i686 GNU (1) W y y y y y y +SuSE Linux 2.6.9-42 i686 Intel W n y n y y y +SuSE Linux 2.6.9-42 i686 PGI W n y n y y y +SuSE Linux 2.6.16 x86_64 GNU (1) W y y y y y y +SuSE Linux 2.6.16 x86_64 Intel W n y n y y y +SuSE Linux 2.6.16 x86_64 PGI W n y n y y y +RHEL 4 Linux 2.6.9 Xeon Lustre C y y y y y y +RedHat Linux 2.4 Xeon Lustre C n y n y y y +SuSE Linux 2.4 ia64 C y y y y y y +SuSe Linux 2.6.16 SGI Altix ia64 n y n y y y +SuSe Linux 2.6.5 SGI Altix ia64 n y n y y y +OSF1 v5.1 y y y y y n + + +Platform Shared static- Thread- STREAM- + libraries(4) exec safe VFD +Solaris2.8 32- and 64-bit y n y y +Solaris2.10 32- and 64-bit y n y y +IRIX64_6.5 32-bit y n y y +IRIX64_6.5 64-bit y n y y +HPUX11.23-32bit y (3) n n y +HPUX11.23-64bit y (3) n n y +WinXP Visual Studio 6.0 y n n n +WinXP CYGWIN y n n n +WinXP 2005 y n n n +WinXP .Net y n n n +Mac OS X 10.4.10 y n n y +AIX-5.2 & 5.3 32- and 64-bit n n n y +FreeBSD 6.2 32- and 64-bit y n n y +RedHat Linux 2.4.21 W y n n y +SuSE Linux 2.6.9-42 i686 GNU (1) W y n y y +SuSE Linux 2.6.9-42 i686 Intel W y n n y +SuSE Linux 2.6.9-42 i686 PGI W n n n y +SuSE Linux 2.6.16 x86_64 GNU (1) W y n n y +SuSE Linux 2.6.16 x86_64 Intel W y n n y +SuSE Linux 2.6.16 x86_64 PGI W n n n y +RHEL 4 Linux 2.6.9 Xeon Lustre C y n n y +RedHat Linux 2.4 Xeon Lustre C y n n y +SuSE Linux 2.4 ia64 C y n n y +SuSe Linux 2.6.16 SGI Altix ia64 n n n y +SuSe Linux 2.6.5 SGI Altix ia64 n n n y +OSF1 v5.1 n n n y + +Compiler versions for each platform are listed in the "Platforms Tested" +table found elsewhere in this file (RELEASE.txt). Unless otherwise noted, +compilers used are the system compilers. + +Footnotes: +(1) Fortran compiled with g95. +(2) In most cases, shared libraries are provided only for the C library, + except on Windows where they are provided for C, C++, and Fortran. +(3) C++ works only with static libraries. + + +Known Problems +============== +* QSC (an HP alpha-based OSF1 cluster) does not create h5pfc correctly. It + does not include the -lmpi properly. This will be fixed in the next + release. AKC - 2007/08/07. + +* On IRIX64 6.5 (UCAR SGI mop1), when testing HDF5 tools with an HDF5 shared + library, especially for h5repacktst and h52gifgentst, the following (or + similar) error message may appear: + "523648:lt-h5repacktst: rld: Fatal Error: Cannot Successfully map soname + 'libh5test.so.1' under any of the filenames .......(bunch of directories) + " + And the testing will fail. + We believe this is a libtool problem. One way to get rid of this is to + add the paths of libh5test.so.1 and libh5.so.1 to the shared library path. + + For 32-bit: + You may do this, under csh: + setenv LD_LIBRARYN32_PATH .......(existing pathes):[full path of HDF5 + directory/test/.libs]:[full path of HDF5 directory/src/.libs] + + For 64-bit: + setenv LD_LIBRARY64_PATH ......(existing pathes):[full path of HDF5 + directory/test/.libs]:[full path of HDF5 directory/src/.libs] + + NOTE: This problem ONLY affects the testing of the HDF5 library when you + build from source. It won't affect any applications that would like to link + with the HDF5 shared library since the shared library path needs to be set + anyway. KY - 2007/8/2 + +* QSC (an HP alpha-based OSF1 cluster) failed the testpar/testphdf5 sub-test + "calloc". All other tests passed. This indicates that a dataset using + chunked storage created by serial HDF5 may not work properly with parallel + HDF5. The calloc test can be skipped by running "prun ... testphdf5 -x + calloc". AKC - 2007/7/12. + +* The Intel C Compiler for the Linux x86_64 platform (EM64T-based, v8.1) has + an optimization error in the datax types conversion code. Before running + configure, edit the file config/intel-flags by changing the setting of + PROD_CFLAGS from -O3 to -O0. Then run configure. AKC - 2005/11/10. + +* When testing parallel HDF5 with the C compiler version MIPSpro 7.4.3 on IRIX + 6.5, set the environment variable MPI_TYPE_MAX to be a bigger number, for + example 120000, in order to pass the complicated collective IO tests inside + the parallel HDF5 library. This is not a problem inside the parallel HDF5 + library. You can always set a bigger number on your system. KY - 2005/10/6 + +* A contiguous or chunked dataset created by a sequential version of HDF5 + might not be able to be modified with a parallel version of the library. + Use the H5Pset_alloc_time function with H5D_ALLOC_TIME_EARLY to set up the + dataset creation property list to avoid the problem. EIP - 2005/09/09 + +* The dataset created or rewritten with the v1.6.3 library or after can't + be read with the v1.6.2 library or before when Fletcher32 EDC (a filter) is + enabled. There was a bug in the calculating code of the Fletcher32 + checksum in the library before v1.6.3. The checksum value wasn't consistent + between big-endian and little-endian systems. This bug was fixed in + Release 1.6.3. However, after fixing the bug, the checksum value is no + longer the same as before on little-endian system. The library release + after 1.6.4 can still read the dataset created or rewritten with the library + of v1.6.2 or before. SLU - 2005/7/8 + +* For version 6 (6.02 and 6.04) of the Portland Group compiler on AMD Opteron + processor, there's a bug in the compiler for optimization(-O2). The library + failed in several tests, all related to the multi driver. The problem has + been reported to the vendor. + +* test/big fails sometimes with the message "Possible overlap with another + region." The test selects regions randomly, and this error occurs when + two regions overlap each other; it is a bug in the test and not in + HDF5. Since the error is triggered by a random situation, it will + usually disappear if the test is re-run. + +* Newer SGI MIPSpro compilers (version 7.4.x) support C99 features but + have a "guard" statement in stdint.h that will #error and skip the rest + of the header file if the C99 option is not used explicitly. Hardsetting + $CC to c99 will resolve the problem. AKC - 2004/12/13 + +* On IBM AIX systems, parallel HDF5 mode will fail some tests with error + messages like "INFO: 0031-XXX ...". This is from the command poe. + Set the environment variable MP_INFOLEVEL to 0 to minimize the messages + and run the tests again. + + The tests may also fail with messages like "The socket name is already + in use". HDF5 does not use sockets (except for stream-VFD). This is + due to problems of the poe command trying to set up the debug socket. + Check whether there are many old /tmp/s.pedb.* files staying around. These + are sockets used by the poe command and left behind due to failed commands. + Ask your system administrator to clean them out. Lastly, request IBM + to provide a means to run poe without the debug socket. + +* The h5dump tests may fail to match the expected output on some platforms + (e.g. parallel jobs, Windows) where the error messages directed to + "stderr" do not appear in the "right order" with output from stdout. + This is not an error. + +* The stream-vfd test uses ip port 10007 for testing. If another + application is already using that port address, the test will hang + indefinitely and has to be terminated by the kill command. To try the + test again, change the port address in test/stream_test.c to one not + being used in the host. + +* The --enable-static-exec configure flag fails to compile for Solaris + platforms. This is due to the fact that not all of the system + libraries on Solaris are available in a static format. + + The --enable-static-exec configure flag also fails to correctly compile + on the IBM SP2 platform for the serial mode. The parallel mode works fine + with this option. + + The --enable-static-exec configure flag also fails to correctly compile + on the HPUX 11.00. + + It is suggested that you don't use this option on these platforms + during configuration. + +* The Stream VFD is not supported under Windows. + +* Use the --disable-shared configure flag if building with Absoft Fortran + compiler. + +* Information about building with PGI and Intel compilers is available in + INSTALL file sections 5.7 and 5.8. + +* In LANL QSC, the new cc compiler has problems converting small values of + long long (absolute values less than 1**-308) to double. This triggers + the test/dtypes to report failure in the following test: + Testing random sw long double -> double conversions + If -ieee is used, the converted doubles spread over the range 0.0 to + 10**-308. If -ieee is not used, the converted double values are mostly + 0.0, but occasionally appear as 10**-308. This has been reported to the + system staff. + + All other tests have passed. + +* On at least one system, SDSC DataStar, the scheduler (in this case + LoadLeveler) sends job status updates to standard error when you run + any executable that was compiled with the parallel compilers. + + This causes problems when running "make check" on parallel builds, as + many of the tool tests function by saving the output from test runs, + and comparing it to an exemplar. + + The best solution is to reconfigure the target system so it no longer + inserts the extra text. However, this may not be practical. + + In such cases, one solution is to "setenv HDF5_Make_Ignore yes" prior to + the configure and build. This will cause "make check" to continue after + detecting errors in the tool tests. However, in the case of SDSC DataStar, + it also leaves you with some 150 "failed" tests to examine by hand. + + A second solution is to write a script to run serial tests and filter + out the text added by the scheduler. A sample script used on SDSC + DataStar is given below, but you will probably have to customize it + for your installation. + + Observe that the basic idea is to insert the script as the first item + on the command line which executes the test. The script then + executes the test and filters out the offending text before passing + it on. + + #!/bin/csh + + set STDOUT_FILE=~/bin/serial_filter.stdout + set STDERR_FILE=~/bin/serial_filter.stderr + + rm -f $STDOUT_FILE $STDERR_FILE + + ($* > $STDOUT_FILE) >& $STDERR_FILE + + set RETURN_VALUE=$status + + cat $STDOUT_FILE + + tail +3 $STDERR_FILE + + exit $RETURN_VALUE + + You get the HDF5 make files and test scripts to execute your filter script + by setting the environment variable "RUNSERIAL" to the full path of the + script prior to running configure for parallel builds. Remember to + "unsetenv RUNSERIAL" before running configure for a serial build. + + Note that the RUNSERIAL environment variable exists so that we can + prefix serial runs as necessary on the target system. On DataStar, + no prefix is necessary. However, on an MPICH system, the prefix might + have to be set to something like "/usr/local/mpi/bin/mpirun -np 1" to + get the serial tests to run at all. + + In such cases, you will have to include the regular prefix in your + filter script. JM - 2004/9/15 + + %%%%1.6.5%%%% Release Information for hdf5-1.6.5 (10/November/05) |