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| author | Elena Pourmal <epourmal@hdfgroup.org> | 2003-06-02 20:36:31 (GMT) |
|---|---|---|
| committer | Elena Pourmal <epourmal@hdfgroup.org> | 2003-06-02 20:36:31 (GMT) |
| commit | db2631c956a4e98c0bc524c05c497b9725887019 (patch) | |
| tree | 009bb220acef136f7191fa7b99b7ee7d4c025508 /release_docs/HISTORY.txt | |
| parent | 45d6798731488ae23aec97295f9d23bc4e20793f (diff) | |
| download | hdf5-db2631c956a4e98c0bc524c05c497b9725887019.zip hdf5-db2631c956a4e98c0bc524c05c497b9725887019.tar.gz hdf5-db2631c956a4e98c0bc524c05c497b9725887019.tar.bz2 | |
[svn-r6945]
Purpose: Maintenance for 1.6 release
Description: HISTORY.txt was not updated in 1.5 branch since 1.2.0 release.
RELEASE.txt had a lot of redundant info that is now in HISTORY.txt
INSTALL_Windows_withF90.txt was lost in 1.5 branch.
Solution: I updated HISTORY.txt to include release history up to 1.4.5 release.
After that I removed all information related to the 1.4.* releases
from RELEASE.txt file. "Platforms Tested" section was brought up
to date based on the information provided by developers for 1.6.0 first
round of testing. RELEASE.txt still needs a lot of work.
INSTALL_Windows_withF90.txt is also a first draft, more work is needed.
Platforms tested: N/A
Misc. update:
Diffstat (limited to 'release_docs/HISTORY.txt')
| -rw-r--r-- | release_docs/HISTORY.txt | 2268 |
1 files changed, 2232 insertions, 36 deletions
diff --git a/release_docs/HISTORY.txt b/release_docs/HISTORY.txt index 79f5065..b6f2585 100644 --- a/release_docs/HISTORY.txt +++ b/release_docs/HISTORY.txt @@ -1,48 +1,2237 @@ HDF5 HISTORY ============ +This file contains history of the HDF5 libraries releases CONTENTS -I. Release Information for hdf5-1.2.2 -II. Release Information for hdf5-1.2.1 -III. Release Information for hdf5-1.2.0 - A. Platforms Supported - B. Known Problems - C. Changes Since Version 1.0.1 - 1. Documentation - 2. Configuration - 3. Debugging - 4. Datatypes - 5. Dataspaces - 6. Persistent Pointers - 7. Parallel Support - 8. New API Functions - a. Property List Interface - b. Dataset Interface - c. Dataspace Interface - d. Datatype Interface - e. Identifier Interface - f. Reference Interface - g. Ragged Arrays - 9. Tools - -IV. Changes from Release 1.0.0 to Release 1.0.1 -V. Changes from the Beta 1.0.0 Release to Release 1.0.0 -VI. Changes from the Second Alpha 1.0.0 Release to the Beta 1.0.0 Release -VII. Changes from the First Alpha 1.0.0 Release to the - Second Alpha 1.0.0 Release + +13. Release Information for hdf5-1.4.5 +12. Release Information for hdf5-1.4.4 +11. Release Information for hdf5-1.4.3 +10. Release Information for hdf5-1.4.2 +9. Release Information for hdf5-1.4.1 +8. Release Information for hdf5-1.4.0 +7. Release Information for hdf5-1.2.2 +6. Release Information for hdf5-1.2.1 +5. Release Information for hdf5-1.2.0 +4. Changes from Release 1.0.0 to Release 1.0.1 +3. Changes from the Beta 1.0.0 Release to Release 1.0.0 +2. Changes from the Second Alpha 1.0.0 Release to the Beta 1.0.0 Release +1. Changes from the First Alpha 1.0.0 Release to the + Second Alpha 1.0.0 Release [Search on the string '%%%%' for per-release section breaks.] ----------------------------------------------------------------------- +%%%%1.4.5%%%% Release Information for hdf5-1.4.5 (02/February/03) +13. Release information for HDF5 version 1.4.5 +============================================================================== -%%%%1.2.2%%%% Release Information for hdf5-1.2.2 (6/23/00) -I. Release Information for hdf5-1.2.2 +INTRODUCTION + +This document describes the differences between HDF5-1.4.4 and +HDF5-1.4.5, and contains information on the platforms tested and +known problems in HDF5-1.4.5. For additional information check the +HISTORY.txt file in the HDF5 source. + +The HDF5 documentation can be found on the NCSA ftp server +(ftp.ncsa.uiuc.edu) in the directory: + + /HDF/HDF5/docs/ + +For more information, see the HDF5 home page at: + + http://hdf.ncsa.uiuc.edu/HDF5/ + +If you have any questions or comments, please send them to: + + hdfhelp@ncsa.uiuc.edu + + +CONTENTS + +- New Features +- Bug Fixes since HDF5-1.4.4 +- Performance Improvements +- Documentation +- Platforms Tested +- Supported Configuration Features +- Known Problems + + +New Features +============ + o Configuration + ================ + * Added "unofficial support" for building with a C++ compiler (or at least + not failing badly when building with a C++ compiler). QAK - 2003/01/09 + * Added "unofficial support" for AIX 64bits. See INSTALL for configure + details. AKC - 2002/08/29 + * Added "--with-dmalloc" flag, to easily enable support for the 'dmalloc' + debugging malloc implementation. QAK - 2002/07/15 + + o Library + ========= + o General + --------- + * Allow scalar dataspaces to be used for parallel I/O. QAK - 2002/11/05 + * Added environment variable "HDF5_DISABLE_VERSION_CHECK", which disables + the version checking between the header files and the library linked + into an application if set to '1'. This should be used with caution, + mis-matched headers and library binaries can cause _serious_ problems. + QAK - 2002/10/15 + * Partially fixed space allocation inefficiencies in the file by + improving our algorithms for re-using freed space. QAK - 2002/08/27 + * API tracing has been improved. Nested API calls don't screw up the + output format; function call and return event times can be logged; + total time spent in each function can be logged. The following + HDF5_DEBUG environment variable words affect tracing: + trace -- turn on/off basic tracing + ttimes -- turn on tracing and report event times and + time spent in each API function. + ttop -- turn on tracing but display only top-level + API calls. + + o APIs + ------ + * Several missing fortran APIs have been added to the library: + + h5get_libversion_f h5tget_member_index_f h5dget_storage_size_f + h5check_version_f h5tvlen_create_f h5dvlen_get_max_len_f + h5garbage_collect_f h5dwrite_vl_f + h5dont_atexit_f h5dread_vl_f + + Functions h5dvlen_get_max_len_f, h5dwrite_vl_f, and h5dread_vl_f support + VL Length C APIs functionality for integer, real and string datatypes. + See HDF5 Reference Manual and HDF5 FORTRAN90 User's Notes for more + information and for the functions description. + + o Parallel library + ================== + * The MPI-posix virtual file driver makes gpfs_fcntl() hints to tell + the underlying GPFS file system to avoid prefetching byte range + tokens if USE_GPFS_HINTS is defined when this file is compiled. + This temporary solution is intended to be removed once the HDF5 + API supports the necessary functionality that makes it possible + for this sort of thing do be done at a higher software layer. + RPM - 2002/12/03 + * Added MPI-posix VFL driver. This VFL driver uses MPI functions to + coordinate actions, but performs I/O directly with POSIX sec(2) + (i.e. open/close/read/write/etc.) calls. This driver should _NOT_ + be used to access files that are not on a parallel filesystem. + The following API functions were added: + herr_t H5Pset_fapl_mpiposix(hid_t fapl_id, MPI_Comm comm); + herr_t H5Pget_fapl_mpiposix(hid_t fapl_id, MPI_Comm *comm/*out*/); + QAK - 2002/07/15 + + + + o Support for new platforms and languages + ========================================= + * C++ API now works on the Origin2000 (IRIX6.5.14.) BMR - 2002/11/14 + + + o Misc. + ========================================= + HDF5 1.4.5 works with Portland Group Compilers (pgcc, pgf90 and pgCC + version 4.0-2) on Linux 2.4 + + +Bug Fixes since HDF5-1.4.4 Release +================================== + * H5Fopen without the H5F_ACC_CREAT flag should not succeed in creating + a new file with the 'core' VFL driver. QAK - 2003/01/24 + * Corrected metadata caching bug in parallel I/O which could cause hangs + when chunked datasets were accessed with independent transfer mode. + QAK - 2003/01/23 + * Allow opening objects with unknown object header messages. + QAK - 2003/01/21 + * Added improved error assertion for nil VL strings. It return error + stack instead of a simple assertion. SLU - 2002/12/16 + * Fixed h5dump bug(cannot dump data and datatype) for VL string. + SLU - 2002/11/18 + * Fixed error condition where "none" selections were not being handled + correctly in serial & parallel. QAK - 2002/10/29 + * Fixed problem where optimized hyperslab routines were incorrectly + invoked for parallel I/O operations in collective mode. QAK - 2002/07/22 + * Fixed metadata corruption problem which could occur when many objects + are created in a file during parallel I/O. QAK - 2002/07/19 + * Fixed minor problem with configuration when users specified /usr/include + and /usr/lib for the --with-* options that some compilers can't + handle. BW - 2003/01/23 + + + +Documentation +============= + New PDF files are not available for this release. + + +Platforms Tested +================ + + AIX 5.1 (32 and 64-bit) C for AIX Compiler, Version 6 + xlf 8.1.0.2 + poe 3.2.0.11 + Cray T3E sn6606 2.0.6.08 Cray Standard C Version 6.6.0.1.3 + Cray Fortran Version 3.6.0.0.12 + Cray SV1 10.0.1. 0 Cray Standard C Version 6.6.0.1.3 + Cray Fortran Version 3.6.0.0.12 + Cray T90IEEE 10.0.1.01u Cray Standard C Version 6.4.0.2.3 + Cray Fortran Version 3.4.0.3 + FreeBSD 4.7 gcc 2.95.4 + g++ 2.95.5 + HP-UX B.11.00 HP C HP92453-01 A.11.01.20 + HP F90 v2.4 + IRIX 6.5 MIPSpro cc 7.30 + IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1.3m + F90 MIPSpro 7.3.1.3m (64 only) + Linux 2.4.18 gcc 3.2.1 + g++ 3.2.1 + Intel(R) C++ Version 6.0 + Intel(R) Fortran Compiler Version 6.0 + PGI compilers (pgcc, pgf90, pgCC) version 4.0-2 + pgf90 3.2-4 + OSF1 V5.1 Compaq C V6.4-014 + Compaq Fortran X5.4A-1684 + gcc version 3.0 for C++ + SunOS 5.7 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.7) WorkShop Compilers 5.0 98/12/15 C++ 5.0 + WorkShop Compilers 5.0 98/10/25 + FORTRAN 90 2.0 Patch 107356-04 + SunOS 5.8/32 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + Patch 109503-07 2001/08/11 + Sun WorkShop 6 update 1 C++ 5.2 Patch + 109508-04 2001/07/11 + SunOS 5.8/64 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + Patch 109503-07 2001/08/11 + Sun WorkShop 6 update 1 C++ 5.2 Patch + 109508-04 2001/07/11 + TFLOPS r1.0.4 v4.3.3 i386 pgcc Rel 3.1-4i with mpich-1.2.4 with + local modifications + IA-32 Linux 2.4.9 gcc 2.96 + Intel(R) C++ Version 7.0 + Intel(R) Fortran Compiler Version 7.0 + + IA-64 Linux 2.4.16 ia64 gcc version 2.96 20000731 + Intel(R) C++ Version 7.0 + Intel(R) Fortran Compiler Version 7.0 + Windows 2000 (NT5.0) MSVC++ 6.0 + DEC Visual Fortran 6.0 + Windows XP .NET + Windows NT4.0 Code Warrior 6.0 + MAC OS X Darwin 6.2 + gcc and g++ Apple Computer, Inc. GCC + version 1161, based on gcc version 3.1 + + + +Supported Configuration Features Summary +======================================== + + 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 + + + Platform C C F90 F90 C++ Shared zlib + parallel parallel libraries (5) + Solaris2.6 y n y n y y y + Solaris2.7 64-bit y y (1) y y (1) y y y + Solaris2.7 32-bit y y (1) y y (1) y y y + Solaris2.8 64-bit y n y y (1) y y y + Solaris2.8 32-bit y n y y (1) y y y + IRIX6.5 y y (1) n n n y y + IRIX64_6.5 64-bit y y (2) y y y y y + IRIX64_6.5 32-bit y y (2) n n n y y + HPUX11.00 y y (1) y n n y y + OSF1 v5.1 y n y n y y y + T3E (6) y n y n n n y + SV1 y n y n n n y + T90 IEEE y n y n n n y + TFLOPS n y (1) n n n n y + AIX-5.1 32-bit y y y y y n y + AIX-5.1 64-bit y y y y y n y + WinXP (7) y n n n y y y + WinNT/2000 y n y n y y y + WinNT CW y n n n n n y + Mac OS X 10.2 y n n n y y y + FreeBSD y y (1) n n y y y + Linux 2.2 y y (1) y y (1) y y y + Linux 2.4 gcc (3) y y (1) y n y y y + Linux 2.4 Intel (3) y n y n n n y + Linux 2.4 PGI (3) y n y n y n y + Linux 2.4 IA32 y n y n n n y + Linux 2.4 IA64 y n y n n n y + + + Platform static- Thread- SRB GASS STREAM- + exec safe VFD + Solaris2.6 x y n n y + Solaris2.7 64-bit x y n n y + Solaris2.7 32-bit x y n n y + Solaris2.8 64-bit x n n n y + Solaris2.8 32-bit x y n n y + IRIX6.5 x n n n y + IRIX64_6.5 64-bit x y n y y + IRIX64_6.5 32-bit x y n y y + HPUX11.00 x n n n y + OSF1 v5.1 y n n n y + T3E (6) y n n n y + SV1 y n n n y + T90 IEEE y n n n y + TFLOPS y n n n n + AIX-5.1 32-bit y n n n y + AIX-5.1 64-bit y n n n y + WinXP (7) dna n n n n + WinNT/2000 dna n n n n + WinNT CW dna n n n n + Mac OS X 10.2 y n n n y + FreeBSD y y n n y + Linux 2.2 y y n n y + Linux 2.4 gcc (3) y y n n y + Linux 2.4 Intel (3) y n n n y + Linux 2.4 PGI (3) y n n n y + Linux 2.4 IA32 y n n n y + Linux 2.4 IA64 y n n n y + + Notes: (1) Using mpich 1.2.4. + (2) Using mpt and mpich 1.2.4. + (3) Linux 2.4 with GNU, Intel, and PGI compilers. + (4) No HDF4-related tools. + (5) Shared libraries are provided only for the C library, + except on Windows where they are provided for all languages. + (6) Debug mode only. + (7) Binaries only; source code for this platform is not being + released at this time. + + +Known Problems +============== + + * On Linux 2.4 IA64, Fortran test fails for h5dwrite_vl_f + for integer and real base datatypes. + + * When fortran library is built with Intel compilers, compilation + for fflush1.f90, fflush2.f90 and fortanlib_test.f90 will fail + complaining about EXEC function. Comment the call to EXEC subroutine + in each program, or get a patch for the HDF5 Fortran source code. + + * Fortran external dataset test fails on Linux 2.4 with pgf90 compiler. + + * On Windows, h5dump may abort printing if a VL string is longer than 4096 + bytes due to a compiler problem. It'll be fixed in v1.6 release. + + * Datasets or attributes which have a variable-length string datatype are + not printing correctly with h5dump and h5ls. + + * When a dataset with the variable-length datatype is overwritten, + the library can develop memory leaks that cause the file to become + unnecessarily large. This is planned to be fixed in the next release. + + * On the SV1, the h5ls test fails due to a difference between the + SV1 printf precision and the printf precision on other platforms. + + * The h5dump tests may fail to match the expected output on some + platforms (e.g. SP2 parallel, 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 HP-UX + 11.00 platforms. + + * The executables are always dynamic on IRIX64 6.5(64 and n32) and + IRIX 6.5 even if they are configured with --enable-static-exec. + + * IRIX 6.5 fails to compile if configured with --enable-static-exec. + + * The executables are always dynamic on Solaris 2.7 ans 2.8(64 and n32) + even if they are configured with --enable-static-exec. + + * The HDF5_MPI_OPT_TYPES optimization code in the parallel HDF5 will cause + a hang in some cases when chunked storage is used. This is now set to + be off by default. One may turn it on by setting the environment + variable HDF5_MPI_OPT_TYPES to a non-zero value such as 1. + + * On OSF1 v5.1 and IA32 h5dumpgentst program that generates test files + for h5dump, gives segmentation fault. + + * On Windows platforms, C and Fortran tests fail with the debug DLL version + of the Library if built from all_withf90.zip file. + + * On Cray T3E (sn6606 2.0.6.08 unicosmk CRAY T3E) with Cray Standard C Version 6.6.0.1.3 + compiler optimization causes errors in many HDF5 Library tests. Use -g -h zero flags + to build HDF5 Library. + + * On Cray SV1 10.0.1. 0 datatype convertion test fails. Please check HDF FTP site + if patch is available. We will try to provide one in the nearest future. + + * For configuration, building and testing with Intel and PGI compilers see + corresponding section in INSTALL file. + + +%%%%1.4.4%%%% Release Information for hdf5-1.4.4 (02/July/02) + +12. Release information for HDF5 version 1.4.4 +============================================================================== INTRODUCTION +This document describes the differences between HDF5-1.4.3 and +HDF5-1.4.4, and contains information on the platforms tested and +known problems in HDF5-1.4.4. For more details check the HISTORY.txt +file in the HDF5 source. + +The HDF5 documentation can be found on the NCSA ftp server +(ftp.ncsa.uiuc.edu) in the directory: + + /HDF/HDF5/docs/ + +For more information, see the HDF5 home page at: + + http://hdf.ncsa.uiuc.edu/HDF5/ + +If you have any questions or comments, please send them to: + + hdfhelp@ncsa.uiuc.edu + + +CONTENTS + +- New Features +- Bug Fixes since HDF5-1.4.3 +- Performance Improvements +- Documentation +- Platforms Tested +- Supported Configuration Features +- Known Problems + + +New Features +============ + o Configuration + ================ + * The H4 to H5 tools have been removed from the main source and placed + in a separate package. You can get these tools from the HDF ftp site + (ftp://hdf.ncsa.uiuc.edu/). The "--with-hdf4" command-line option + during configure is no longer valid. BW - 2002/06/25 + + o Library + ========= + o General + --------- + * Fill-value forward-compatibility with release 1.5 was added. SLU - + 2002/04/11 + * A new query function H5Tget_member_index has been added for compound + and enumeration data types. This function retrieves a member's index + by name. SLU - 2002/04/05 + * Added serial multi-gigabyte file size test. "test/big -h" shows + the help page. AKC - 2002/03/29 + + o APIs + ------ + * The F90 subroutines h5dwrite_f, h5dread_f, h5awrite_f, and h5aread_f + were overloaded with a "dims" argument of type INTEGER(HSIZE_T) to + specify the size of the array. We recommend using these subroutines + with the new type; module subroutines that accept "dims" as an i + INTEGER array of size 7 will be deprecated in release 1.6. + EIP - 2002/05/06 + + o Performance + ------------- + * Added internal "small data" aggregation, which can reduce the number of + actual I/O calls made, improving performance. QAK - 2002/06/05 + * Improved internal metadata aggregation, which can reduce the number of + actual I/O calls made, improving performance. Additionally, this can + reduce the size of files produced. QAK - 2002/06/04 + * Improved internal metadata caching, which can reduce the number of + actual I/O calls made by a substantial amount, improving + performance. QAK - 2002/06/03 + + + o Parallel library + ================== + * Fixed bug in parallel I/O routines where a collective I/O which used + MPI derived types, followed by an independent I/O would cause the library + to hang. QAK 2002/06/24 + * Added environment variable flag to control whether creating MPI derived + types is preferred or not. This can affect performance, depending on + which way the MPI-I/O library is optimized. The default is set to + prefer MPI derived types for collective raw data transfers; setting the + HDF5_MPI_PREFER_DERIVED_TYPES environment variable to "0" (i.e.: + "setenv HDF5_MPI_PREFER_DERIVED_TYPES 0") changes the preference to avoid + using them whenever possible. QAK - 2002/06/19 + * Changed MPI I/O routines to avoid creating MPI derived types (and thus + needing to set the file view) for contiguous selections within datasets. + This should result in some performance improvement for those types of + selections. QAK - 2002/06/18 + * Changed MPI type support for collective I/O to be enabled by default. + This can be disabled by setting the HDF5_MPI_OPT_TYPES environment + variable to the value "0". QAK - 2002/06/14 + * Allowed chunks in chunked datasets to be cached when parallel file is + opened for read-only access (bug #709). QAK - 2002/06/10 + * Changed method for allocating chunked dataset blocks to only allocate + blocks that don't already exist, instead of attempting to create all the + blocks all the time. This improves performance for chunked + datasets. QAK - 2002/05/17 + * Allowed the call to MPI_File_sync to be avoided when the file is going to + immediately be closed, improving performance. QAK - 2002/05/13 + * Allowed the metadata writes to be shared among all processes, easing the + burden on process 0. QAK - 2002/05/10 + + + o Tools + ======= + * h5redeploy utility was added. It updates HDF5 compiler tools + after the HDF5 software has been installed in a new location. + + + o Support for new platforms and languages + ========================================= + * Parallel Fortran Library works now on HP-UX B.11.00 Sys V. + EIP - 2002/05/06 + * Intel C++ and F90 compilers Version 6.0 are supported on Linux 2.4. + * Intel C++ compilers Version 6.0 are supported on Windows 2000. + + + o Misc. + ========================================= + * zlib has been moved out of the Windows source release. Users should go to + the ZLIB homepage(http://www.zlib.org) to download the corresponding + zlib library. + * The Windows binary release is built with the old version of the zlib + library. We expect users to use zlib 1.1.4 to build with the source + release. + * In the Windows-specific install document, we specify how to test backward + compatibility. However, in this release, we are not testing the backward + compatibility of HDF5. + + +Bug Fixes since HDF5-1.4.3 Release +================================== + * Fixed bug in chunking routines where they were using internal allocation + free routines, instead of malloc/free, preventing user filters from + working correctly. Chunks are now allocated/freed with malloc/free and + so should the chunks in user filters. QAK 2002/06/18 + * Fixed bug where regular hyperslab selection could get incorrectly + transferred when the number of elements in a row did not fit evenly + into the buffer provided. QAK 2002/06/12 + * Fixed bug (#499) which allowed an "empty" compound or enumerated datatype + (one with no members) to be used to create a dataset or to be committed + to a file. QAK - 2002/06/11 + * Fixed bug (#777) which allowed a compound datatype to be inserted into + itself. QAK - 2002/06/10 + * Fixed bug (#789) where creating 1-D dataset region reference caused the + library to go into infinite loop. QAK - 2002/06/10 + * Fixed bug (#699, fix provided by a user) where a scalar dataspace was + written to the file and then subsequently queried with the + H5Sget_simple_extent_type function; type was reported as H5S_SIMPLE + instead of H5S_SCALAR. EIP - 2002/06/04 + * Clear symbol table node "dirty" flag when flushing symbol tables to + disk, to reduce I/O calls made & improve performance. QAK - 2002/06/03 + * Fixed bug where an object's header could get corrupted in certain + obscure situations when many objects were created in the + file. QAK - 2002/05/31 + * Fixed bug where read/write intent in file IDs created with H5Freopen + was not being kept the same as the original file. QAK - 2002/05/14 + * Fixed bug where selection offsets were not being used when iterating + through point and hyperslab selections with + H5Diterate(). QAK - 2002/04/29 + * Fixed bug where the data for several level deep nested compound & + variable-length datatypes used for datasets were getting corrupted when + written to the file. QAK - 2002/04/17 + * Fixed bug where selection offset was being ignored for certain hyperslab + selections when optimized I/O was being performed. QAK - 2002/04/02 + * Fixed limitation in h5dumper with object names which reached over 1024 + characters in length. We can now handle arbitrarily larger sizes for + object names. BW - 2002/03/29 + * Fixed bug where variable-length string type did not behave as a + string. SLU - 2002/03/28 + * Fixed bug in H5Gget_objinfo() which was not setting the 'fileno' + of the H5G_stat_t struct. QAK - 2002/03/27 + * Fixed data corruption bug in hyperslab routines when contiguous + hyperslab that spans entire dimension and is larger than type + conversion buffer is attempted to be read. QAK - 2002/03/26 + + +Performance Improvements +======================== + This release of the HDF5 library has been extensively tuned to improve +performance, especially to improve parallel I/O performance. + Most of the specific information for particular performance improvements +is mentioned in the "New Features" and "Bug Fixes since HDF5-1.4.3" sections +of this document, but in general, the library should make fewer and larger +I/O requests when accessing a file. Additionally, improvements to the parallel +I/O portions of the library should have reduced the communications and barriers +used in various internal algorithms, improving the performance of the library. + However, with the extensive changes to some portions of the library that +were required for these improvements, some errors or unanticipated results may +have been introduced also. Please report any problems encountered to our +support team at hdfhelp@ncsa.uiuc.edu. + Hopefully these improvements will benefit all HDF5 applications, but if +there are particular I/O patterns that appear to be slower than necessary, +please send e-mail to hdfhelp@ncsa.uiuc.edu with a sample program showing the +problem behavior; we will look into the issue to see if it is possible to +address it. + + +Documentation +============= + * Documentation was updated for the hdf5-1.4.4 release. + * A new "HDF5 User's Guide" is under development. See + http://hdf.ncsa.uiuc.edu/HDF5/doc_dev_snapshot/H5_NewUG/current/. + * A "Parallel HDF5 Tutorial" is available at + http://hdf.ncsa.uiuc.edu/HDF5/doc/Tutor/. + * The "HDF5 Tutorial" is not distributed with this release. It is + available at http://hdf.ncsa.uiuc.edu/HDF5/doc/Tutor/. + + +Platforms Tested +================ + + AIX 4.3.3.0 (IBM SP powerpc) xlc 5.0.2.0 + mpcc_r 5.0.2.0 + xlf 07.01.0000.0002 + mpxlf 07.01.0000.0002 + AIX 4.3 (IBM SP RS6000) C for AIX Compiler, Version 5.0.2.0 + xlf 7.1.0.2 + poe 3.1.0.12 (includes mpi) + AIX 5.1 xlc 5.0.2.0 + xlf 07.01.0000.0002 + mpcc_r 5.0.2.0; mpxlf_r 07.01.0000.0002 + Cray T3E sn6711 2.0.5.57 Cray Standard C Version 6.5.0.3 + Cray Fortran Version 3.5.0.4 + Cray SV1 10.0.1.1 Cray Standard C Version 6.5.0.3 + Cray Fortran Version 3.5.0.4 + FreeBSD 4.6 gcc 2.95.4 + g++ 2.95.4 + HP-UX B.10.20 HP C HP92453-01 A.10.32.30 + HP F90 v2.3 + HP-UX B.11.00 HP C HP92453-01 A.11.01.20 + HP F90 v2.4 + HP-UX B.11.00 SysV HP C HP92453-01 A.11.01.20 + HP F90 v2.4 + HP MPI [not a product] (03/24/2000) B6060BA + IRIX 6.5 MIPSpro cc 7.30 + IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1.3m + F90 MIPSpro 7.3.1.3m (64 only) + Linux 2.4.9-31smp gcc 2.95.3 + g++ 2.95.3 + Intel(R) C++ Version 6.0 + Intel(R) Fortran Compiler Version 6.0 + MPICH 1.2.2 + Linux 2.2.18smp gcc 2.95.2 + gcc 2.95.2 with mpich 1.2.1 + g++ 2.95.2 + pgf90 3.2-4 + OSF1 V5.1 Compaq C V6.4-014 + Compaq Fortran V5.5-1877-48BBF + gcc version 3.0 for C++ + SunOS 5.7 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.7) WorkShop Compilers 5.0 98/12/15 C++ 5.0 + WorkShop Compilers 5.0 98/10/25 + FORTRAN 90 2.0 Patch 107356-04 + SunOS 5.8/32 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + Patch 109503-07 2001/08/11 + Sun WorkShop 6 update 1 C++ 5.2 Patch + 109508-04 2001/07/11 + SunOS 5.8/64 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + Patch 109503-07 2001/08/11 + Sun WorkShop 6 update 1 C++ 5.2 Patch + 109508-04 2001/07/11 + TFLOPS r1.0.4 v4.2.2 i386 pgcc Rel 3.1-4i with mpich-1.2.3 with + local modifications + IA-32 Linux 2.4.9 cc Intel 5.0.1 + gcc 2.96 + Intel(R) C++ Version 6.0 + Intel(R) Fortran Compiler Version 6.0 + + IA-64 Linux 2.4.16 ia64 gcc version 2.96 20000731 + Intel(R) C++ Version 6.0 + Intel(R) Fortran Compiler Version 6.0 + Windows 2000 (NT5.0) MSVC++ 6.0 + DEC Visual Fortran 6.0 + Windows NT4.0 MSVC++ 6.0 + DEC Visual Fortran 6.0 + Windows NT4.0 Code Warrior 6.0 + + +Supported Configuration Features Summary +======================================== + + In the tables below + y = tested and supported + n = not supported or not tested in this release + x = not working in this release + ( ) = footnote appears below second table + + + Platform C C F90 F90 C++ Shared zlib Tools + parallel parallel libraries(5) + Solaris2.6 y n y n y y y y + Solaris2.7 64 y y (1) y n y y y y + Solaris2.7 32 y y (1) y n y y y y + Solaris2.8 64 y n y n y y y y + Solaris2.8 32 y n y n y y y y + IRIX6.5 y y (1) n n n y y y + IRIX64_6.5 64 y y (2) y y n y y y + IRIX64_6.5 n32 y y (2) n n n y y y + HPUX10.20 y n y n n y y y + HPUX11.00 y n y n n y y y + HPUX11 SysV y y y y n y y y + OSF1 v5.1 y n y n y y y y + T3E y y y y n n y y + SV1 y n y n n n y y + TFLOPS n y (1) n n n n y y (4) + AIX-4.3 y y y y y n y y + AIX-5.1 y y y y n n y y + WinNT/2000 y n y n y y y y + WinNT CW y n n n n n y y + FreeBSD y n n n y y y y + Linux 2.2 y y (1) y n y y y y + Linux 2.4 y y (1) n n y y y y + Linux 2.4 Intel(6) y n y n y n y y + Linux 2.4 IA32 y n y n n n y y + Linux 2.4 IA64 y n y n n n y y + + + Platform 1.2 static- Thread- SRB GASS STREAM- + compatibility exec safe VFD + Solaris2.6 y x y n n y + Solaris2.7 64 y x y n n y + Solaris2.7 32 y x y n n y + Solaris2.8 64 y y n n n y + Solaris2.8 32 y x y n n y + IRIX6.5 y x n n n y + IRIX64_6.5 64 y x y n y y + IRIX64_6.5 n32 y x y n y y + HPUX10.20 y y n n n y + HPUX11.00 y x n n n y + HPUX11 SysV y x n n n y + OSF1 v5.1 y y n n n y + T3E y y n n n y + SV1 y y n n n y + TFLOPS y y n n n n + AIX-4.3 y y (3) n n n y + AIX-5.1 y y n n n y + WinNT/2000 y y n n n n + WinNT CW n n n n n n + FreeBSD y y y n n y + Linux 2.2 y y y n n y + Linux 2.4 y y y n n y + Linux 2.4 Intel(6) y y n n n y + Linux 2.4 IA32 y y n n n y + Linux 2.4 IA64 y y n n n y + + + Footnotes: (1) Using mpich. + (2) Using mpt and mpich. + (3) When configured with static-exec enabled, tests fail in + serial mode. + (4) No HDF4-related tools. + (5) Shared libraries are provided only for the C library, + except on Windows where they are provided for all languages. + (6) Linux 2.4 with Intel compilers. + + +Known Problems +============== + + * Datasets or attributes which have a variable-length string datatype are + not printing correctly with h5dump and h5ls. + + * When a dataset with the variable-length datatype is overwritten, + the library can develop memory leaks that cause the file to become + unnecessarily large. This is planned to be fixed in the next release. + + * On the SV1, the h5ls test fails due to a difference between the + SV1 printf precision and the printf precision on other platforms. + + * The h5dump tests may fail to match the expected output on some + platforms (e.g. SP2 parallel, 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 HP-UX + 11.00 platforms. + + * The executables are always dynamic on IRIX64 6.5(64 and n32) and + IRIX 6.5 even if they are configured with --enable-static-exec. + + * IRIX 6.5 fails to compile if configured with --enable-static-exec. + + * The HDF5_MPI_OPT_TYPES optimization code in the parallel HDF5 will cause + a hang in some cases when chunked storage is used. This is now set to + be off by default. One may turn it on by setting the environment + variable HDF5_MPI_OPT_TYPES to a non-zero value such as 1. + + * 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," + + * To build the Fortran library using Intel compilers, one has to + x modify the source code in the fortran/src directory to remove the + !DEC and !MS compiler directives. + x The build will fail in the fortran/test directory and then in the + fortran/examples directory; to proceed, edit the work.pcl files in + those directories to contain two lines + + work.pc + ../src/work.pc + + * To build the Fortran library on IA64 use + setenv CC "ecc -DIA64" + setenv F9X "efc -cl,work.pcl" + before running configure and see the steps described above. + + +%%%%1.4.3%%%% Release Information for hdf5-1.4.3 (18/Februaru/02) + +11. Release information for HDF5 version 1.4.3 +============================================================================== + + +INTRODUCTION + +This document describes the differences between HDF5-1.4.2 and +HDF5-1.4.3, and contains information on the platforms tested and +known problems in HDF5-1.4.2. For more details check the HISTORY.txt +file in the HDF5 source. + +The HDF5 documentation can be found on the NCSA ftp server +(ftp.ncsa.uiuc.edu) in the directory: + + /HDF/HDF5/docs/ + +For more information look at the HDF5 home page at: + + http://hdf.ncsa.uiuc.edu/HDF5/ + +If you have any questions or comments, please send them to: + + hdfhelp@ncsa.uiuc.edu + + +CONTENTS + +- New Features +- Bug Fixes since HDF5-1.4.2 +- Documentation +- Platforms Tested +- Supported Configuration Features +- Known Problems + + +New Features +============ + o Configuration + ================ + * Can use just enable-threadsafe if the C compiler has built-in pthreads + support. + + o Library + ========= + o General + --------- + * Added a new test to verify the information provided by the configure + command. + * Changed internal error handling macros to reduce code size of library by + about 10%. + + o APIs + ------ + * Changed prototype for H5Awrite from: + H5Awrite(hid_t attr_id, hid_t type_id, void *buf) + to: + H5Awrite(hid_t attr_id, hid_t type_id, const void *buf) + * The H5Pset_fapl_split() accepts raw and meta file names similar to the + syntax of H5Pset_fapl_multi() in addition to what it used to accept. + + C++ API: + * Added operator= to class PredType + * Add the overloaded member function Attribute::getName to return + the attribute name's length as in C API. Note that the current + Attribute::getName, that returns "string", is still available. + * Following the change in the C library, the corresponding C++ API + is changed from: + void Attribute::write( const DataType& mem_type, void *buf ) + to: + void Attribute::write( const DataType& mem_type, const void *buf ) + + o Performance + ------------- + * Added perform programs to test the HDF5 library performance. Programs + are installed in directory perform/. + * Improved performance of byte-swapping during data conversions. + * Improved performance of single, contiguous hyperslabs when reading or + writing. + * Added support to read/write portions of chunks directly, if they are + uncompressed and too large to cache. This should speed up I/O on chunked + datasets for a few more cases. -QAK, 1/31/02 + + o Parallel Library + ================== + * Parallel C HDF5 now works on HP-UX platforms, Compaq clusters, + Linux clusters, Cplants (alpha-linux clusters). + + o Tools + ======= + * A helper script called ``h5cc'', which helps compilation of HDF5 + programs, is now distributed with HDF5. See the reference manual + for information on how to use this feature. + * The H5Dumper can now dump comments associated with groups. -WCW 01-05-02 + + o Support for new platforms and languages + ========================================= + * HDF5 C++ Library is supported on Windows platforms (shared and static) + * HDF5 F90 shared library is supported on Windows platforms. + * HDF5 C Library is supported on IA32 and IA64 platforms. + + + +Bug Fixes since HDF5-1.4.2 Release +================================== + + * Fixed a bug when reading chunked datasets where the edge of the dataset + would be incorrectly detected and generate an assertion failure. + * Fixed a bug where reading an entire dataset wasn't being handled + optimally when the dataset had unlimited dimensions. Dataset is read + in a single low-level I/O now, instead of being broken into separate + pieces internally. + * Fixed a bug where reading or writing chunked data which needed datatype + conversion could result in data values getting corrupted. + * Fixed a bug where appending a point selection to the current selection + would not actually append the point when there were no points defined + currently. + * Fixed a bug where 'or'ing a hyperslab with a 'none' selection would + fail. Now adds that hyperslab as the first hyperlab in the selection. + * Fixed a bug in the 'big' test where quota limits weren't being detected + properly if they caused close() to fail. + * Fixed a bug in internal B-tree code where a B-tree was not being copied + correctly. + * Fixed an off-by-one error in H5Sselect_valid when hyperslab selections + which would allow hyperslab selections which overlapped the edge of the + selection by one element as valid. + * Fixed the internal macros used to encode & decode file metadata, to avoid + an unaligned access warning on IA64 machines. + * Corrected behavior of H5Tinsert to not allow compound datatype fields to + be inserted past the end of the datatype. + * Retired the DPSS virtual file driver (--with-gridstorage configure + option). + * Fixed bug where variable-length datatypes for attributes was not working + correctly. + * Fixed bug where raw data re-allocated from the free-list would sometimes + overlap with the metadata accumulator and get corrupted. QAK - 1/23/02 + * Fixed bug where a preempted chunk in the chunk data could still be + used by an internal pointer and cause an assertion failure or core + dump. QAK - 2/13/02 + * Fixed bug where non-zero fill-value was not being read correctly from + certain chunked datasets when using an "all" or contiguous hyperslab + selection. QAK - 2/14/02 + + +Documentation +============= + * Documentation was updated for the hdf5-1.4.3 release. + * A new "HDF5 User's Guide" is under development. See + http://hdf.ncsa.uiuc.edu/HDF5/doc_dev_snapshot/H5_NewUG/current/. + * Parallel Tutorial is available at http://hdf.ncsa.uiuc.edu/HDF5/doc/Tutor/ + + +Platforms Tested +================ + + AIX 4.3.3.0 (IBM SP powerpc) xlc 5.0.2.0 + mpcc_r 5.0.2.0 + xlf 07.01.0000.0002 + mpxlf 07.01.0000.0002 + AIX 4.3 (IBM SP RS6000) C for AIX Compiler, Version 5.0.2.0 + xlf 7.1.0.2 + poe 3.1.0.12 (includes mpi) + Cray T3E sn6711 2.0.5.57 Cray Standard C Version 6.5.0.3 + Cray Fortran Version 3.5.0.4 + Cray SV1 10.0.0.8 Cray Standard C Version 6.5.0.3 + Cray Fortran Version 3.5.0.4 + FreeBSD 4.5 gcc 2.95.3 + g++ 2.95.3 + HP-UX B.10.20 HP C HP92453-01 A.10.32.30 + HP F90 v2.3 + HP-UX B.11.00 HP C HP92453-01 A.11.01.20 + HP F90 v2.4 + HP-UX B.11.00 SysV HP C HP92453-01 A.11.01.20 + HP F90 v2.4 + HP MPI [not a product] (03/24/2000) B6060BA + IRIX 6.5 MIPSpro cc 7.30 + IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1.2m + Linux 2.4.4 gcc 2.95.3 + g++ 2.95.3 + Linux 2.2.18smp gcc 2.95.2 + gcc 2.95.2 with mpich 1.2.1 + g++ 2.95.2 + pgf90 3.2-4 + OSF1 V5.1 Compaq C V6.3-028 + Compaq Fortran V5.4-1283 + SunOS 5.7 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.7) Workshop Compilers 5.0 98/12/15 C++ 5.0 + Workshop Compilers 5.0 98/10/25 + FORTRAN 90 2.0 Patch 107356-04 + SunOS 5.8/32 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + Patch 109503-07 2001/08/11 + Sun WorkShop 6 update 1 C++ 5.2 Patch + 109508-04 2001/07/11 + SunOS 5.8/64 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + Patch 109503-07 2001/08/11 + Sun WorkShop 6 update 1 C++ 5.2 Patch + 109508-04 2001/07/11 + TFLOPS r1.0.4 v4.0.8 i386 pgcc Rel 3.1-4i with mpich-1.2.1 with + local modifications + IA-32 Linux 2.2.10smpx cc Intel 5.0.1 + egcs-2.91.66 + IA-64 Linux 2.4.16 ia64 gcc version 2.96 20000731 + Intel(R) C++ Itanium(TM) Compiler + for the Itanium(TM)-based applications, + Version 6.0 Beta, Build 20010905 + Windows 2000 (NT5.0) MSVC++ 6.0 + DEC Visual Fortran 6.0 + Windows NT4.0 MSVC++ 6.0 + DEC Visual Fortran 6.0 + Windows NT4.0 Code Warrior 6.0 + Windows 98 MSVC++ 6.0 + DEC Visual Fortran 6.0 + + +Supported Configuration Features Summary +======================================== + + In the tables below + y = tested and supported + n = not supported or not tested in this release + x = not working in this release + ( ) = footnote appears below second table + + + Platform C C F90 F90 C++ Shared zlib Tools + parallel parallel libraries + (5) + Solaris2.7 y y (1) y n y y y y + Solaris2.8 64 y n y n y y y y + Solaris2.8 32 y n y n y y y y + IA-64 y n n n n n y y + IRIX6.5 y y (1) n n n y y y + IRIX64_6.5 64 y y (2) y y n y y y + IRIX64_6.5 32 y y (2) n n n y y y + HPUX10.20 y n y n n y y y + HPUX11.00 y y y n n y y y + HPUX11 SysV y y y n n y y y + DECOSF y n y n y y y y + T3E y y y y n n y y + SV1 y n y n n n y y + TFLOPS y y (1) n n n n y y (4) + AIX-4.3 SP2 y y y y n n y n + AIX-4.3 SP3 y y y y y n y n + Win2000 y n y n y (6) y y y + Win98 y n y n y (6) y y y + WinNT y n y n y (6) y y y + WinNT CW y n n n n n y y + FreeBSD y n n n y y y y + Linux 2.2 y y (1) y n y y y y + Linux 2.4 y y (1) n n y y y y + + + Platform 1.2 static- Thread- SRB GASS STREAM- + compatibility exec safe VFD + Solaris2.7 n x y n n y + Solaris2.8 64 n y n n n y + Solaris2.8 32 n x n n n y + IA-64 n n n n n y + IRIX6.5 n x y n n y + IRIX64_6.5 64 n x y n y y + IRIX64_6.5 32 n x y n y y + HPUX10.20 n y n n n y + HPUX11.00 n x n n n y + HPUX11 SysV n x n n n y + DECOSF n y n n n y + T3E n y n n n y + SV1 n y n n n y + TFLOPS n y n n n n + AIX-4.3 SP2 n y (3) n n n y + AIX-4.3 SP3 n y n n n y + Win2000 n y n n n n + Win98 n y n n n n + WinNT n y n n n n + WinNT CW n n n n n n + FreeBSD n y y n n y + Linux 2.2 n y y n n y + Linux 2.4 n y y n n y + + + Footnotes: (1) Using mpich. + (2) Using mpt and mpich. + (3) When configured with static-exec enabled, tests fail + in serial mode. + (4) No HDF4-related tools. + (5) Shared libraries are provided only for the C library. + (6) Exception of (5): DLL is available for C++ API on Windows + + +Known Problems +============== + + * Datasets or attributes which have a variable-length string datatype are + not printing correctly with h5dump and h5ls. + + * When a dataset with the variable-legth datatype is overwritten, + the library can develop memory leaks that cause the file to become + unnecessarily large. This is planned to be fixed in the next release. + + * On the SV1, the h5ls test fails due to a difference between the + SV1 printf precision and the printf precision on other platforms. + + + * The h5dump tests may fail to match the expected output in some + platforms (e.g. SP2 parallel, 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 HP-UX + 11.00 platforms. + + * The executables are always dynamic on IRIX64 6.5(64 and n32) and + IRIX 6.5 even if they are configured with --enable-static-exec. + + * IRIX 6.5 fails to compile if configured with --enable-static-exec. + + * The HDF5_MPI_OPT_TYPES optimization code in the parallel HDF5 will cause + a hang in some cases when chunked storage is used. This is now set to + be off by default. One may turn it on by setting environment variable + HDF5_MPI_OPT_TYPES to a non-zero value such as 1. + + * On IA64 systems one has to use -DIA64 compilation flag to compile + h4toh5 and h5toh4 utilites. After configuration step manually modify + Makefile in the tools/h4toh4 and tools/h5toh4 directories to add + -DIA64 to the compilation flags. + + * On IA32 ansd IA64 systems, if you use a compiler other than GCC + (such as Intel's ecc compiler), you will need to modify the generated + "libtool" program after configuration is finished. On or around line 102 + of the libtool file, there are lines which look like: + + # How to pass a linker flag through the compiler. + wl="" + + change the lines to this: + + # How to pass a linker flag through the compiler. + wl="-Wl," + + +%%%%1.4.2%%%% Release Information for hdf5-1.4.2 (31/July/01) + +10. Release Information for hdf5-1.4.2 +================================================================= + + +INTRODUCTION + +This document describes the differences between HDF5-1.4.1 and +HDF5-1.4.2, and contains information on the platforms tested and +known problems in HDF5-1.4.2. + +The HDF5 documentation can be found on the NCSA ftp server +(ftp.ncsa.uiuc.edu) in the directory: + + /HDF/HDF5/docs/ + +For more information look at the HDF5 home page at: + + http://hdf.ncsa.uiuc.edu/HDF5/ + +If you have any questions or comments, please send them to: + + hdfhelp@ncsa.uiuc.edu + + +CONTENTS + +- New Features +- Bug Fixes since HDF5-1.4.1 +- Documentation +- Platforms Tested +- Supported Configuration Features +- Known Problems + + +New Features +============ + + * File sizes greater than 2GB are now supported on Linux systems with + version 2.4.x or higher kernels. + * Added a global string variable H5_lib_vers_info_g which holds the + HDF5 library version information. This can be used to identify + an hdf5 library or hdf5 application binary. + Also added a verification of the consistency between H5_lib_vers_info_g + and other version information in the source code. + * Parallel HDF5 now runs on the HP V2500 and HP N4000 machines. + * F90 API: + - Added aditional parameter "dims" to the h5dread_f/h5dwrite_f and + h5aread_f/h5awrite_f subroutines. This parameter is a 1-D array + of size 7 and contains the sizes of the data buffer dimensions. + This change enables portability between Windows and UNIX platforms. + In previous versions of the F90 APIs, the data buffer parameters of + the above functions were declared as assumed-shape arrays, which + were passed to the C functions by a descriptor. There is no + portable means, however, of passing descriptors from F90 to C, + causing portability problems between Windows and UNIX and among + UNIX platforms. With this change, the data buffers are assumed- + size arrays, which can be portably passed to the C functions. + * F90 static library is available on Windows platforms. + See INSTALL_Windows_withF90.txt for details. + * F90 APIs are available on HPUX 11.00 and 10.20 and IBM SP platforms. + * H5 <-> GIF convertor has been added. This is available under + tools/gifconv. The convertor supports the ability to create animated + gifs as well. + * Verified correct operation of library on Solaris 2.8 in both 64-bit and + 32-bit compilation modes. See INSTALL document for instructions on + compiling the distribution with 64-bit support. + * Added support for the Metrowerks Code Warrior compiler for Windows. + * For H4->H5 converter utility, added a new option to choose not to convert + HDF4 specified attributes(reference number, class) into HDF5 attributes. + * Added support chunking and compression in SDS and image in H4->H5 converter. + Currently HDF5 only supports gzip compression, so by default an HDF4 file + with any other compression method will be converted into an HDF5 file in + gzip compression. + * correct the order or reading HDF4 image array in H4->H5 conversion. + * Added new parallel hdf5 tests in t_mpi. The new test checks if the + filesystem or the MPI-IO can really handle greater than 2GB files. + If it fails, it prints information message only without failing the + test. + * Added a parallel HDF5 example examples/ph5example.c to illustrate + the basic way of using parallel HDF5. + * Added a new public macro, H5_VERS_INFO, which is a string holding + the HDF5 library version information. This string is also compiled + into all HDF5 binary code which helps to identify the version information + of the binary code. One may use the Unix strings command on the binary + file and looks for the pattern "HDF5 library version". + * Added new checking in H5check_version() to verify the five HDF5 version + information macros (H5_VERS_MAJOR, H5_VERS_MINOR, H5_VERS_RELEASE, + H5_VERS_SUBRELEASE and H5_VERS_INFO) are consistent. + + +Bug Fixes since HDF5-1.4.1 Release +================================== + + * Fixed bug with non-zero userblock sizes causing raw data to not + write correctly. + * Fixed problems with Pablo build and linking with non-standard MPI I/O. + * Fixed build on Linux systems with --enable-static-exec flag. It now + works correctly. + * IMPORTANT: Fixed file metadata corruption bug which could cause + metadata data loss in certain situations. + * The allocation by alignment (H5Pset_alignment) feature code somehow + got dropped in some 1.3.x version. Re-implemented it with "new and + improved" algorithm. It keeps track of "wasted" file-fragment in + the free-list too. + * Removed limitation that the data transfer buffer size needed to be + set for datasets whose dimensions were too large for the 'all' + selection code to handle. Any size dimensioned datasets should be + handled correctly now. + * Changed behavior of H5Tget_member_type to correctly emulate HDF5 v1.2.x + when --enable-hdf5v1_2 configure flag is enabled. + * Added --enable-linux-lfs flag to allow more control over whether to + enable or disable large file support on Linux. + * Fixed various bugs releated to SDS dimensional scale conversions in H4->H5 + converter. + * Fixed a bug to correctly convert HDF4 objects with fill value into HDF5. + * Fixed a bug of H5pubconf.h causing repeated definitions if it is included + more than once. hdf5.h now includes H5public.h which includes + H5pubconf.h. Applications should #include hdf5.h which handles multiple + inclusion correctly. + * Fixed H5FDmpio.h to be C++ friendly by making Parallel HDF5 API's to be + external to C++. + * Fixed a bug in H5FD_mpio_flush() that might result in negative file seek + if both MPIO and Split-file drivers are used together. + + + +Documentation +============= + + * The H5T_conv_t and H5T_cdata_t structures are now properly defined + in the H5Tregister entry in the "H5T" section of the "HDF5 Reference + Manual" and described in detail in section 12, "Data Conversions," in + the "Datatypes" chapter of the "HDF5 User's Guide." + * The new tools h52gif and gif2h5 have been added to the "Tools" section + of the Reference Manual. + * A "Freespace Management" section has been added to the "Performance" + chapter of the User's Guide. + * Several user-reported bugs have been fixed since Release 1.4.1. + * The "HDF5 Image and Palette Specification" (in the "HDF5 Application + Developer's Guide") has been heavily revised. Based on extensive user + feedback and input from visualization software developers, Version 1.2 + of the image specification is substantially different from prior + versions. + + +Platforms Tested +================ + + AIX 4.3.3.0 (IBM SP powerpc) xlc 3.6.6.0 + mpcc_r 3.6.6.0 + xlf 07.01.0000.0002 + mpxlf 07.01.0000.0002 + AIX 4.3 (IBM SP RS6000) C for AIX Compiler, Version 5.0.2.0 + xlf 7.1.0.2 + poe 2.4.0.14 (includes mpi) + Cray T3E sn6711 2.0.5.49a Cray Standard C Version 6.5.0.1 + Cray SV1 10.0.0.2 Cray Standard C Version 6.5.0.1 + Cray Fortran Version 3.5.0.1 + FreeBSD 4.3 gcc 2.95.3 + g++ 2.95.3 + HP-UX B.10.20 HP C HP92453-01 A.10.32.30 + HP F90 v2.3 + HP-UX B.11.00 HP C HP92453-01 A.11.01.20 + HP F90 v2.4 + HP-UX B.11.00 SysV HP C HP92453-01 A.11.01.20 + HP F90 v2.4 + IRIX 6.5 MIPSpro cc 7.30 + IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1.2m + Linux 2.4.4 gcc 2.95.3 + g++ 2.95.3 + Linux 2.2.18smp gcc 2.95.2 + gcc 2.95.2 with mpich 1.2.1 + g++ 2.95.2 + pgf90 3.2-4 + OSF1 V4.0 DEC-V5.2-040 on Digital UNIX V4.0 (Rev 564) + Digital Fortran 90 V4.1-270 + SunOS 5.6 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.6) WorkShop Compilers 5.0 98/10/25 FORTRAN 90 + 2.0 Patch 107356-04 + SunOS 5.7 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.7) Workshop Compilers 5.0 98/12/15 C++ 5.0 + Workshop Compilers 5.0 98/10/25 FORTRAN 90 + 2.0 Patch 107356-04 + SunOS 5.8/32 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + 2000/09/11 + Sun WorkShop 6 update 1 C++ 5.2 2000/09/11 + SunOS 5.8/64 Sun WorkShop 6 update 1 C 5.2 2000/09/11 + (Solaris 2.8) Sun WorkShop 6 update 1 Fortran 95 6.1 + 2000/09/11 + Sun WorkShop 6 update 1 C++ 5.2 2000/09/11 + TFLOPS r1.0.4 v4.0.7 i386 pgcc Rel 3.1-4i with mpich-1.2.1 with + local modifications + Windows 2000 (NT5.0) MSVC++ 6.0 + Windows NT4.0 MSVC++ 6.0 + DEC Visual Fortran 6.0 + Windows NT4.0 Code Warrior 6.0 + Windows 98 MSVC++ 6.0 + DEC Visual Fortran 6.0 + + +Supported Configuration Features Summary +======================================== + + In the tables below + y = tested and supported + n = not supported or not tested in this release + x = not working in this release + ( ) = footnote appears below second table + + + Platform C C F90 F90 C++ Shared zlib Tools + parallel parallel libraries + (5) + Solaris2.6 y n y n y y y y + Solaris2.7 y y (1) y n y y y y + Solaris2.8 64 y n n n y y y y + Solaris2.8 32 y n y n y y y y + IRIX6.5 y y (1) n n n y y y + IRIX64_6.5 64 y y (2) y y n y y y + IRIX64_6.5 32 y y (2) n n n y y y + HPUX10.20 y n y n n y y y + HPUX11.00 y n y n n y y y + HPUX11 SysV y n y n n y y y + DECOSF y n y n n y y y + T3E y y y y n n y y + SV1 y n y n n n y y + TFLOPS y y (1) n n n n y y (4) + AIX-4.3 SP2 y y y y n n y n + AIX-4.3 SP3 y y y y n n y n + Win2000 y n n n n y y y + Win98 y n y n n y y y + WinNT y n y n n y y y + WinNT CW y n n n n n y y + FreeBSD y n n n y y y y + Linux 2.2 y y (1) y n y y y y + Linux 2.4 y y (1) n n y y y y + + + Platform 1.2 static- Thread- SRB GASS STREAM- + compatibility exec safe VFD + Solaris2.6 y x n n n y + Solaris2.7 y x y n n y + Solaris2.8 64 y y n n n y + Solaris2.8 32 y x n n n y + IRIX6.5 y x y n n y + IRIX64_6.5 64 y x n n n y + IRIX64_6.5 32 y x n n n y + HPUX10.20 y y n n n y + HPUX11.00 y x n n n y + HPUX11 SysV y x n n n y + DECOSF y y n n n y + T3E y y n n n y + SV1 y y n n n y + TFLOPS y y n n n n + AIX-4.3 SP2 y y (3) n n n y + AIX-4.3 SP3 y y n n n y + Win2000 y y n n n n + Win98 n y n n n n + WinNT y y n n n n + WinNT CW n n n n n n + FreeBSD y y n n n y + Linux 2.2 y y y n n y + Linux 2.4 y y y n n y + + + Footnotes: (1) Using mpich. + (2) Using mpt and mpich. + (3) When configured with static-exec enabled, tests fail + in serial mode. + (4) No HDF4-related tools. + (5) Shared libraries are provided only for the C library. + + +Known Problems +============== + + * When a dataset with the variable-legth datatype is overwritten, + the library can develop memory leaks that cause the file to become + unnecessarily large. This is planned to be fixed in the next release. + + * On the SV1, the h5ls test fails due to a difference between the + SV1 printf precision and the printf precision on other platforms. + + * The h5dump tests may fail to match the expected output in some + platforms (e.g. SP2 parallel, 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 HP-UX + 11.00 platforms. + + * The executables are always dynamic on IRIX64 6.5(64 and n32) and + IRIX 6.5 even if they are configured with --enable-static-exec. + + * IRIX 6.5 fails to compile if configured with --enable-static-exec. + + * For 24-bit image conversion from H4->H5, the current conversion is + not consistent with HDF5 image specification. + + * In some cases, and SDS with an UNLIMITED dimension that has not + been written (current size = 0) is not converted correctly. + + * After "make install" or "make install-doc" one may need to reload + the source from the tar file before doing another build. + + * The HDF5_MPI_OPT_TYPES optimization code in the parallel HDF5 will cause + a hang in some cases when chunked storage is used. This is now set to + be off by default. One may turn it on by setting environment variable + HDF5_MPI_OPT_TYPES to a non-zero value such as 1. + +%%%%1.4.1%%%% Release Information for hdf5-1.4.1 (April/01) + +9. Release Information for hdf5-1.4.1 (April/01) +===================================================================== + + + + HDF5 Release 1.4.1 + + +INTRODUCTION + +This document describes the differences between HDF5-1.4.0 and +HDF5-1.4.1, and contains information on the platforms tested and +known problems in HDF5-1.4.1. + +The HDF5 documentation can be found on the NCSA ftp server +(ftp.ncsa.uiuc.edu) in the directory: + + /HDF/HDF5/docs/ + +For more information look at the HDF5 home page at: + + http://hdf.ncsa.uiuc.edu/HDF5/ + +If you have any questions or comments, please send them to: + + hdfhelp@ncsa.uiuc.edu + + +CONTENTS + +- New Features +- Bug Fixes since HDF5-1.4.0 +- Documentation +- Platforms Tested +- Supported Configuration Features +- Known Problems + + +New Features +============ + + * XML output option for h5dump utility. + + A new option --xml to output data in XML format has been added. The + XML output contains a complete description of the file, marked up in + XML. + + The XML conforms to the HDF5 Document Type Definition (DTD), which + is available at: + + http://hdf.ncsa.uiuc.edu/DTDs/HDF5-File.dtd + + The XML output is suitable for use with other tools, including the + Java Tools: + + http://hdf.ncsa.uiuc.edu/java-hdf5-html + + +Bug Fixes since HDF5-1.4.0 Release +================================== + + * h4toh5 utility: conversion of images is fixed + + Earlier releases of the h4toh5 utility produced images that did not + correctly conform to the HDF5 Image and Palette Specification. + + http://hdf.ncsa.uiuc.edu/HDF5/doc/ImageSpec.html + + Several required HDF5 attributes are omitted, and the dataspace + is reversed (i.e., the ht. and width of the image dataset is + incorrectly described.) For more information, please see: + + http://hdf.ncsa.uiuc.edu/HDF5/H5Image/ImageDetails.htm + + * Fixed bug with contiguous hyperslabs not being detected, causing + slower I/O than necessary. + * Fixed bug where non-aligned hyperslab I/O on chunked datasets was + causing errors during I/O + * The RCSID string in H5public.h was causing the C++ compiling problem + because when it was included multiple times, C++ did not like + multiple definitions of the same static variable. All occurance of + RCSID definition are removed since we have not used it consistently + before. + + +Documentation +============= + + PDF and Postscript versions of the following documents are available + for this release: + Document Filename + -------- -------- + Introduction to HDF5 H5-R141-Introduction.pdf + HDF5 Reference Manual H5-R141-RefManual.pdf + C++ APIs to HDF5 documents H5-R141-Cplusplus.pdf + Fortran90 APIs to HDF5 documents H5-R141-Fortran90.pdf + + PDF and Postscript files containing H5-R141-DocSet.pdf + all of the above H5-R141-DocSet.ps + + These files are not included in this distribution, but are available + via the Web or FTP at the following locations: + http://hdf.ncsa.uiuc.edu/HDF5/doc/PSandPDF/ + ftp://ftp.ncsa.uiuc.edu/HDF/HDF5/docs/ + + While these documents are labeled Release 1.4.1, they describe + Release 1.4.0 as well. + + +Platforms Tested +================ + +Due to the nature of this release only C, C++ libraries and tools were tested. + + AIX 4.3.3.0 (IBM SP powerpc) xlc 3.6.6 + mpcc_r 3.6.6 + Cray T3E sn6711 2.0.5.47 Cray Standard C Version 6.5.0.0 + Cray SV1 10.0.0.8 Cray Standard C Version 6.5.0.0 + FreeBSD 4.3 gcc 2.95.2 + HP-UX B.10.20 HP C HP92453-01 A.10.32.30 + HP-UX B.11.00 HP C HP92453-01 A.11.01.20 + IRIX 6.5 MIPSpro cc 7.30 + IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1m + Linux 2.2.18smp gcc-2.95.2 + g++ 2.95.2 + OSF1 V4.0 DEC-V5.2-040 + Digital Fortran 90 V4.1-270 + SunOS 5.6 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.6) + + SunOS 5.7 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.7) Workshop Compilers 5.0 98/12/15 C++ 5.0 + TFLOPS r1.0.4 v4.0 mpich-1.2.1 with local changes + Windows NT4.0, 2000 (NT5.0) MSVC++ 6.0 + Windows 98 MSVC++ 6.0 + + +Supported Configuration Features Summary +======================================== + + * See "Supported Configuration Features Summary" section for the HDF5 + 1.4.0 release in the HISTORY.txt file. + +Known Problems +============== + + * The h5dump tests may fail to match the expected output in some + platforms (e.g. SP2 parallel, 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 HP-UX + 11.00 platforms. + + * The executable are always dynamic on IRIX64 6.5(64 and n32) and + IRIX 6.5 even if they are configured with --enable-static-exec. + + * The shared library failed compilation on IRIX 6.5. + + * After "make install" or "make install-doc" one may need to reload the source + from the tar file before doing another build. + + * See "Known problems" section for the HDF5 1.4.0 release in the + HISTORY.txt file. + +%%%%1.4.0%%%% Release Information for hdf5-1.4.0 (2/22/01) + +8. Release Information for hdf5-1.4.0 +=================================================================== + + HDF5 Release 1.4.0 + + +INTRODUCTION + +This document describes the differences between HDF5-1.2.0 and +HDF5-1.4.0, and contains information on the platforms tested and +known problems in HDF5-1.4.0. For more details check the HISTORY.txt +file in the HDF5 source. + +The HDF5 documentation can be found on the NCSA ftp server +(ftp.ncsa.uiuc.edu) in the directory: + + /HDF/HDF5/docs/ + +For more information look at the HDF5 home page at: + + http://hdf.ncsa.uiuc.edu/HDF5/ + +If you have any questions or comments, please send them to: + + hdfhelp@ncsa.uiuc.edu + + +CONTENTS + +- New Features +- h4toh5 Utility +- F90 Support +- C++ Support +- Pablo Support +- Bug Fixes since HDF5-1.2.0 +- Bug Fixes since HDF5-1.4.0-beta2 +- Bug Fixes since HDF5-1.4.0 +- Documentation +- Platforms Tested +- Supported Configuration Features +- Known Problems + + +New Features +============ + * The Virtual File Layer, VFL, was added to replace the old file + drivers. It also provides an API for user defined file drivers. + * New features added to snapshots. Use 'snapshot help' to see a + complete list of features. + * Improved configure to detect if MPIO routines are available when + parallel mode is requested. + * Added Thread-Safe support. Phase I implemented. See: + + http://hdf.ncsa.uiuc.edu/HDF5/papers/mthdf/MTHDFpaper.htm + + for more details. + * Added data sieve buffering to raw data I/O path. This is enabled + for all VFL drivers except the mpio & core drivers. Setting the + sieve buffer size is controlled with the new API function, + H5Pset_sieve_buf_size(), and retrieved with H5Pget_sieve_buf_size(). + * Added new Virtual File Driver, Stream VFD, to send/receive entire + HDF5 files via socket connections. + * As parts of VFL, HDF-GASS and HDF-SRB are also added to this + release. To find out details, please read INSTALL_VFL file. + * Increased maximum number of dimensions for a dataset (H5S_MAX_RANK) + from 31 to 32 to align with HDF4 & netCDF. + * Added 'query' function to VFL drivers. Also added 'type' parameter to + VFL 'read' & 'write' calls, so they are aware of the type of data + being accessed in the file. Updated the VFL document also. + * A new h4toh5 utility, to convert HDF4 files to analogous HDF5 files. + * Added a new array datatype to the datatypes which can be created. + Removed "array fields" from compound datatypes (use an array datatype + instead). + * Parallel HDF5 works correctly with mpich-1.2.1 on Solaris, SGI, Linux. + * You can now install the HDF5 documentation using the + ``make install-doc'' command. The documentation is installed in the + $(prefix)/doc directory where $(prefix) is the prefix specified by + the (optional) ``--prefix'' flag during configuration. + * HDF5 can operate correctly in the OpenMP environment in a limited way. + Check doc/html/TechNotes/openmp-hdf5.html for details. + + +h4toh5 Utility +============== + The h4toh5 utility is a new utility that converts an HDF4 file to an + HDF5 file. For details, see the document, "Mapping HDF4 Objects to + HDF5 Objects": + http://hdf.ncsa.uiuc.edu/HDF5/papers/H4-H5MappingGuidelines.pdf + + Known Bugs: + + The h4toh5 utility produces images that do not correctly conform + to the HDF5 Image and Palette Specification. + + http://hdf.ncsa.uiuc.edu/HDF5/doc/ImageSpec.html + + Several required HDF5 attributes are omitted, and the dataspace + is reversed (i.e., the ht. and width of the image dataset is + incorrectly described.) For more information, please see: + + http://hdf.ncsa.uiuc.edu/HDF5/H5Image/ImageDetails.html + + This bug has been fixed for the snapshot of hdf5 1.4 release. March 12th,2001 + + Known Limitations of the h4toh5 release + --------------------------------------------- + + 1. Error handlings + + h4toh5 utility will print out an error message when an error occurs. + + 2. String Datatype + + HDF4 has no 'string' type. String valued data are usually defined as + an array of 'char' in HDF4. The h4toh5 utility will generally map + these to HDF5 'String' types rather than array of char, with the + following additional rules: + + * For the data of an HDF4 SDS, image, and palette, if the data is + declared 'DFNT_CHAR8' it will be assumed to be integer and will + be an H5T_INTEGER type. + * For attributes of any HDF4 object, data of type 'DFNT_CHAR8' + will be converted to an HDF5 'H5T_STRING' type. + * For an HDF4 Vdata, it is difficult to determine whether data + of type 'DFNT_CHAR8' is intended to be bytes or characters. The + h4toh5 utility will consider them to be C characters, and will + convert them to an HDF5 'H5T_STRING' type. + + + 3. Compression, Chunking and External Storage + + Chunking is supported, but compression and external storage is not. + + An HDF4 object that uses chunking will be converted to an HDF5 file + with analogous chunked storage. + + An HDF4 object that uses compression will be converted to an + uncompressed HDF5 object. + + An HDF4 object that uses external storage will be converted to an + HDF5 object without external storage. + + 4. Memory Use + + This version of the h4toh5 utility copies data from HDF4 objects + in a single read followed by a single write to the HDF5 object. For + large objects, this requires a very large amount of memory, which may + be extremely slow or fail on some platforms. + + Note that a dataset that has only been partly written will + be read completely, including uninitialized data, and all the + data will be written to the HDF5 object. + + 5. Platforms + + The h4toh5 utility requires HDF5-1.4.0 and HDF4r1.4 + + h4toh5 utility has been tested on all platforms listed below (see + section "Platforms Tested") except TFLOPS. + + +F90 Support +=========== + This is the first release of the HDF5 Library with fully integrated + F90 API support. The Fortran Library is created when the + --enable-fortran flag is specified during configuration. + + Not all F90 subroutines are implemented. Please refer to the HDF5 + Reference Manual for more details. + + F90 APIs are available for the Solaris 2.6 and 2.7, Linux, DEC UNIX, + T3E, SV1 and O2K (64 bit option only) platforms. The Parallel version of + the HDF5 F90 Library is supported on the O2K and T3E platforms. + + Changes since the last prototype release (July 2000) + ---------------------------------------------------- + * h5open_f and h5close_f must be called instead of h5init_types and + h5close_types. + + * The following subroutines are no longer available: + + h5pset_xfer_f + h5pget_xfer_f + h5pset_mpi_f + h5pget_mpi_f + h5pset_stdio_f + h5pget_stdio_f + h5pset_sec2_f + h5pget_sec2_f + h5pset_core_f + h5pget_core_f + h5pset_family_f + h5pget_family_f + + * The following functions have been added: + + h5pset_fapl_mpio_f + h5pget_fapl_mpio_f + h5pset_dxpl_mpio_f + h5pget_dxpl_mpio_f + + * In the previous HDF5 F90 releases, the implementation of object + references and dataset region references was not portable. This + release introduces a portable implementation, but it also introduces + changes to the read/write APIs that handle references. If object or + dataset region references are written or read to/from an HDF5 file, + h5dwrite_f and h5dread_f must use the extra parameter, n, for the + buffer size: + + h5dwrite(read)_f(dset_id, mem_type_id, buf, n, hdferr, & + ^^^ + mem_space_id, file_space_id, xfer_prp) + + For other datatypes the APIs were not changed. + + +C++ Support +=========== + This is the first release of the HDF5 Library with fully integrated + C++ API support. The HDF5 C++ library is built when the --enable-cxx + flag is specified during configuration. + + Check the HDF5 Reference Manual for available C++ documentation. + + C++ APIs are available for Solaris 2.6 and 2.7, Linux, and FreeBSD. + + +Pablo Support +============= + This version does not allow proper building of the Pablo-instrumented + version of the library. A version supporting the pablo build is + available on the Pablo Website at + www-pablo.cs.uiuc.edu/pub/Pablo.Release.5/HDFLibrary/hdf5_v1.4.tar.gz + + +Bug Fixes since HDF5-1.2.0 +========================== + +Library +------- + * The function H5Pset_mpi is renamed as H5Pset_fapl_mpio. + * Corrected a floating point number conversion error for the Cray J90 + platform. The error did not convert the value 0.0 correctly. + * Error was fixed which was not allowing dataset region references to + have their regions retrieved correctly. + * Corrected a bug that caused non-parallel file drivers to fail in + the parallel version. + * Added internal free-lists to reduce memory required by the library + and H5garbage_collect API function + * Fixed error in H5Giterate which was not updating the "index" + parameter correctly. + * Fixed error in hyperslab iteration which was not walking through the + correct sequence of array elements if hyperslabs were staggered in a + certain pattern + * Fixed several other problems in hyperslab iteration code. + * Fixed another H5Giterate bug which was causes groups with large + numbers of objects in them to misbehave when the callback function + returned non-zero values. + * Changed return type of H5Aiterate and H5A_operator_t typedef to be + herr_t, to align them with the dataset and group iterator functions. + * Changed H5Screate_simple and H5Sset_extent_simple to not allow + dimensions of size 0 with out the same dimension being unlimited. + * QAK - 4/19/00 - Improved metadata hashing & caching algorithms to + avoid many hash flushes and also remove some redundant I/O when + moving metadata blocks in the file. + * The "struct(opt)" type conversion function which gets invoked for + certain compound datatype conversions was fixed for nested compound + types. This required a small change in the datatype conversion + function API. + * Re-wrote lots of the hyperslab code to speed it up quite a bit. + * Added bounded garbage collection for the free lists when they run + out of memory and also added H5set_free_list_limits API call to + allow users to put an upper limit on the amount of memory used for + free lists. + * Checked for non-existent or deleted objects when dereferencing one + with object or region references and disallow dereference. + * "Time" datatypes (H5T_UNIX_D*) were not being stored and retrieved + from object headers correctly, fixed now. + * Fixed H5Dread or H5Dwrite calls with H5FD_MPIO_COLLECTIVE requests + that may hang because not all processes are transfer the same amount + of data. (A.K.A. prematured collective return when zero amount data + requested.) Collective calls that may cause hanging is done via the + corresponding MPI-IO independent calls. + * If configure with --enable-debug=all, couple functions would issue + warning messages to "stderr" that the operation is expensive time-wise. + This messed up applications (like testings) that did not expect the + extra output. It is changed so that the warning will be printed only + if the corresponding Debug key is set. + +Configuration +------------- + * The hdf5.h include file was fixed to allow the HDF5 Library to be + compiled with other libraries/applications that use GNU autoconf. + * Configuration for parallel HDF5 was improved. Configure now attempts + to link with libmpi.a and/or libmpio.a as the MPI libraries by + default. It also uses "mpirun" to launch MPI tests by default. It + tests to link MPIO routines during the configuration stage, rather + than failing later as before. One can just do "./configure + --enable-parallel" if the MPI library is in the system library. + * Added support for pthread library and thread-safe option. + * The libhdf5.settings file shows the correct machine byte-sex. + * Added option "--enable-stream-vfd" to configure w/o the Stream VFD. + For Solaris, added -lsocket to the LIBS list of libraries. + +Tools +----- + * h5dump now accepts both short and long command-line parameters: + -h, --help Print a usage message and exit + -B, --bootblock Print the content of the boot block + -H, --header Print the header only; no data is displayed + -i, --object-ids Print the object ids + -V, --version Print version number and exit + -a P, --attribute=P Print the specified attribute + -d P, --dataset=P Print the specified dataset + -g P, --group=P Print the specified group and all members + -l P, --soft-link=P Print the value(s) of the specified soft link + -o F, --output=F Output raw data into file F + -t T, --datatype=T Print the specified named data type + -w #, --width=# Set the number of columns + + P - is the full path from the root group to the object. + T - is the name of the data type. + F - is a filename. + # - is an integer greater than 1. + * A change from the old way command line parameters were interpreted + is that multiple attributes, datasets, groups, soft-links, and + object-ids cannot be specified with just one flag but you have to + use a flag with each object. I.e., instead of doing this: + + h5dump -a /attr1 /attr2 foo.h5 + + do this: + + h5dump -a /attr1 -a /attr2 foo.h5 + + The cases are similar for the other object types. + * h5dump correctly displays compound datatypes. + * Corrected an error in h5toh4 which did not convert the 32bits + int from HDF5 to HDF4 correctly for the T3E platform. + * h5dump correctly displays the committed copy of predefined types + correctly. + * Added an option, -V, to show the version information of h5dump. + * Fixed a core dumping bug of h5toh4 when executed on platforms like + TFLOPS. + * The test script for h5toh4 used to not able to detect the hdp + dumper command was not valid. It now detects and reports the + failure of hdp execution. + * Merged the tools with the 1.2.2 branch. Required adding new + macros, VERSION12 and VERSION13, used in conditional compilation. + Updated the Windows project files for the tools. + * h5dump displays opaque and bitfield data correctly. + * h5dump and h5ls can browse files created with the Stream VFD + (eg. "h5ls <hostname>:<port>"). + * h5dump has a new feature "-o <filename>" which outputs the raw data + of the dataset into ascii text file <filename>. + * h5toh4 used to converts hdf5 strings type to hdf4 DFNT_INT8 type. + Corrected to produce hdf4 DFNT_CHAR type instead. + * h5dump and h5ls displays array data correctly. + + +Bug Fixes since HDF5-1.4.0-beta2 +================================ + * Fixed a bug in the conversion from a little endian double to a big + endian float in some special cases. + * Corrected configuration error which was not including compression + support correctly. + * Cleaned up lots of warnings. + * Changed a few h5dump command line switches and added long versions of + the switches. + * Changed parameters for H5Tconvert, H5Pset_bufer and H5Pget_buffer from + size_t to hsize_t + * Fixed fairly obscure bug in hyperslab I/O which could (in rare cases) + not copy all the data during a transfer. + * Removed ragged array code from library. + * F90 library and module files are installed properly now on all supported + platforms. + + +Bug Fixes since HDF5-1.4.0 Release +================================== + + * Fixed bug with contiguous hyperslabs not being detected, causing + slower I/O than necessary. + * Fixed bug where non-aligned hyperslab I/O on chunked datasets was + causing errors during I/O + * Implemented XML support in h5dump. + + +Documentation +============= + * A new document summarizing the changes in the library leading up to + the current release has been added: + HDF5 Software Changes from Release to Release + This document is in the Application Developer's Guide and is of + particular interest to developers who must keep an application + synchronized with the library. + * The documentation for the Fortran90 and C++ APIs is linked to the + opening page of the Reference Manual. Fortran90 functions are + individually referenced from the corresponding C functions through- + out the Reference Manual. + * User's Guide and Reference Manual were updated to reflect changed + function syntax and to fix reported bugs. + * Functions that are new at this release were added to the Reference + Manual. + * Functions that have been removed from the library were removed from + the User's Guide and the Reference Manual. + * PostScript and PDF versions of the Release 1.4 document set are + not available at the time of Release 1.4.0. + + +Platforms Tested +================ + AIX 4.3.3.0 (IBM SP powerpc) xlc 3.6.6 + mpcc_r 3.6.6 + Cray T3E sn6711 2.0.5.45 Cray Standard C Version 6.4.0.0 + Cray Fortran Version 3.4.0.2 + Cray SV1 sn9605 10.0.0.7 Cray Standard C Version 6.4.0.0 + Cray Fortran Version 3.4.0.2 + FreeBSD 4.2 gcc 2.95.2 + g++ 2.95.2 + HP-UX B.10.20 HP C HP92453-01 A.10.32.30 + HP-UX B.11.00 HP C HP92453-01 A.11.00.13 + IRIX 6.5 MIPSpro cc 7.30 + mpich-1.2.1 + IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1m + mpt.1.4.0.2 + mpich-1.2.1 + Linux 2.2.16-3smp gcc-2.95.2 + g++ 2.95.2 + pgf90 3.1-3 + mpich-1.2.1 + OSF1 V4.0 DEC-V5.2-040 + Digital Fortran 90 V4.1-270 + SunOS 5.6 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.6) WorkShop Compilers 5.0 99/10/25 Fortran 90 + 2.0 Patch 107356-04 + Workshop Compilers 5.0 98/12/15 C++ 5.0 + SunOS 5.7 WorkShop Compilers 5.0 98/12/15 C 5.0 + (Solaris 2.7) WorkShop Compilers 5.0 99/10/25 Fortran 90 + 2.0 Patch 107356-04 + Workshop Compilers 5.0 98/12/15 C++ 5.0 + mpich-1.2.1 + SunOS 5.5.1 gcc-2.7.2 + (Solaris 2.5.1 (x86)) + TFLOPS r1.0.4 v4.0 mpich-1.2.1 with local changes + Windows NT4.0, 2000 (NT5.0) MSVC++ 6.0 + Windows 98 MSVC++ 6.0 + + +Supported Configuration Features Summary +======================================== + In the tables below + y = tested and supported + n = not supported or not working in this release + ( ) = footnote appears below table + + Platform C C F90 F90 C++ Shared zlib Tools + parallel parallel libraries + Solaris2.6 y n y n y y y y + Solaris2.7 y y (1) y n y y y y + Solarisx86 y n n n n y y y + IRIX6.5 y y (1) n n n n y y + IRIX64_6.5 64 y y (2) y y n y y y + IRIX64_6.5 32 y y (2) n n n y y y + HPUX10.20 y n n n n y y y + DECOSF y n y n n y y y + T3E y y y y n n y y + SV1 y n y n n n y y + TFLOPS y y (1) n n n n y y (4) + AIX-4.3 y y n n n n y n + Win2000 y n n n n y y y + Win98 y n n n n y y y + WinNT y n n n n y y y + FreeBSD y n n n y y y y + Linux y y (1) y n y y y y + + + Platform 1.2 static- Thread- SRB GASS STREAM- + compatibility exec safe VFD + Solaris2.6 y n n n n y + Solaris2.7 y n y n n y + Solarisx86 y n n n n y + IRIX6.5 y n y n n y + IRIX64_6.5 64 y n n n n y + IRIX64_6.5 32 y n n n n y + HPUX10.20 y y n n n y + DECOSF y y n n n y + T3E y y n n n y + SV1 y y n n n y + TFLOPS y y n n n n + AIX-4.3 y y (3) n n n y + Win2000 y y n n n n + Win98 y y n n n n + WinNT y y n n n n + FreeBSD y y n n n y + Linux y n y n n y + + Footnotes: (1) Using mpich. + (2) Using mpt and mpich. + (3) When configured with static-exec enabled, tests fail + in serial mode. + (4) No HDF4-related tools. + + +Known Problems +============== + * 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 Linux platforms using the gcc-2.95.2 compiler. + + 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. + + The compilation fails if configured with --enable-static-exec on IRIX 6.5. + + The executable files in hdf5/bin are dynamic-linked for IRIX64 6.5(64 and + n32 modes) and IRIX 6.5, even though they are compiled with static library. + + It is suggested that you don't use this option on these platforms + during configuration. + + * testhdf5 got bus error with configuration options --prefix and --with-hdf4 + on IRIX 6.5. + + * 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. + + * SunOS 5.6 with C WorkShop Compilers 4.2: Hyperslab selections will + fail if library is compiled using optimization of any level. + + * When building hdf5 tools and applications on windows platform, a linking + warning: defaultlib "LIBC" conflicts with use of other libs will appear + on debug version when running VC++6.0. This warning doesn't affect building + and testing hdf5 applications. We will continue investigating this. + + * h5toh4 converter fails two cases(tstr.h5 and tmany.h5) for release dll + version on windows 2000 and NT. The reason is possibly due to Windows NT + DLL convention on freeing memory. It seems that memory cannot be freed + across library or DLL. It is still under investigation. + + * HDF-GASS testings and testhdf5 in the test directory will get bus error if + the configured with --with-gass. + + * HDF-SRB testing got segmentation error on Solaris 2.7. + + * The Stream VFD was not tested yet under Windows. + It is not supported in the TFLOPS machine. + + * Shared library option is broken for IBM SP and some Origin 2000 platforms. + One needs to run ./configure with '--disable-shared --enable-static'. + + * 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: + - Solaris x86 2.5.1, Cray T3E and Cray J90 give errors during testing + when displaying object references in certain files. These are benign + differences due to the difference in sizes of the objects created on + those platforms. h5ls appears to be dumping object references + correctly. + - Cray J90 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 (T3E and SV1) + 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 + the ftp://ftp.ncsa.uiuc.edu/HDF/HDF5/hdf5-1.4.0/src/crayf90/ directory. + + * The h4toh5 utility produces images that do not correctly conform + to the HDF5 Image and Palette Specification. + + http://hdf.ncsa.uiuc.edu/HDF5/doc/ImageSpec.html + + Several required HDF5 attributes are omitted, and the dataspace + is reversed (i.e., the ht. and width of the image dataset is + incorrectly described.) For more information, please see: + + http://hdf.ncsa.uiuc.edu/HDF5/H5Image/ImageDetails.htm + +%%%%1.2.2%%%% Release Information for hdf5-1.2.2 (6/23/00) + +7. Release Information for hdf5-1.2.2 +================================================================= +INTRODUCTION + This document describes the differences between HDF5-1.2.1 and HDF5-1.2.2, and contains information on the platforms where HDF5-1.2.2 was tested and known problems in HDF5-1.2.2. @@ -157,7 +2346,9 @@ Platforms Tested %%%%1.2.1%%%% Release Information for hdf5-1.2.1 -II. Release Information for hdf5-1.2.1 +6. Release Information for hdf5-1.2.1 +================================================================ + Bug fixes since HDF5-1.2.0 ========================== @@ -247,7 +2438,8 @@ o SunOS 5.6 with C WorkShop Compilers 4.2: Hyperslab selections will %%%%1.2.0%%%% Release Information for hdf5-1.2.0 -III. Release Information for hdf5-1.2.0 +5. Release Information for hdf5-1.2.0 +=================================================================== A. Platforms Supported ------------------- @@ -500,7 +2692,8 @@ C. Changes Since Version 1.0.1 %%%%1.0.1%%%% Release Information for hdf5-1.0.1 -IV. Changes from Release 1.0.0 to Release 1.0.1 +4. Changes from Release 1.0.0 to Release 1.0.1 +===================================================================== * [Improvement]: configure sets up the Makefile in the parallel tests suit (testpar/) correctly. @@ -568,7 +2761,8 @@ IV. Changes from Release 1.0.0 to Release 1.0.1 %%%%1.0.0%%%% Release Information for hdf5-1.0.0 -V. Changes from the Beta 1.0.0 Release to Release 1.0.0 +3. Changes from the Beta 1.0.0 Release to Release 1.0.0 +==================================================================== * Added fill values for datasets. For contiguous datasets fill value performance may be quite poor since the fill value is written to the @@ -591,7 +2785,8 @@ V. Changes from the Beta 1.0.0 Release to Release 1.0.0 %%%%1.0.0 Beta%%%% Release Information for hdf5-1.0.0 Beta -VI. Changes from the Second Alpha 1.0.0 Release to the Beta 1.0.0 Release +2. Changes from the Second Alpha 1.0.0 Release to the Beta 1.0.0 Release +========================================================================= * Strided hyperslab selections in dataspaces now working. @@ -621,8 +2816,9 @@ VI. Changes from the Second Alpha 1.0.0 Release to the Beta 1.0.0 Release %%%%1.0.0 Alpha 2%%%% Release Information for hdf5-1.0.0 Alpha 2 -VII. Changes from the First Alpha 1.0.0 Release to +1. Changes from the First Alpha 1.0.0 Release to the Second Alpha 1.0.0 Release +===================================================================== * Two of the packages have been renamed. The data space API has been renamed from `H5P' to `H5S' and the property list (template) API has |