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* [svn-r6387] Purpose:Quincey Koziol2003-02-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Bug Fix Description: Metadata cache in parallel I/O can cause hangs in applications which perform independent I/O on chunked datasets, because the metadata cache can attempt to flush out dirty metadata from only a single process, instead of collectively from all processes. Solution: Pass a dataset transfer property list down from every API function which could possibly trigger metadata I/O. Then, split the metadata cache into two sets of entries to allow dirty metadata to be set aside when a hash table collision occurs during independent I/O. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} FreeBSD 4.7 (sleipnir) serial & parallel Misc. update: Updated release_docs/RELEASE
* [svn-r6383] Purpose:Quincey Koziol2003-02-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New feature for developers. Description: Added "function stack" tracing to library. This allows developers (there is no public API) to call H5FS_print within the library and get a listing of the functions traversed to reach that point in the library. Eventually, I may add support for reporting the parameters to each function also... Mainly for debugging parallel I/O programs, but I think it will come in handy in other cases also. The function stack tracking is controlled with a configure switch: --enable-funcstack, which defaults to enabled currently. When we branch for 1.6, we should change the default setting on the branch to be disabled. Also, added a destructor to the thread-specific keys when thread-safety is turned on in the library. Otherwise, they were leaking memory and causing difficult to debug errors in threaded programs (like the test/ttsafe test). Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} FreeBSD 4.7 (sleipnir) w/thread-safety enabled. Misc. update: Updated MANIFEST with new files added (src/H5FS.c & src/H5FDprivate.h) Update release_docs/RELEASE with thread-safety bug fix.
* [svn-r6375] Raymond Lu2003-02-041-0/+2
| | | | | | | | | | | Purpose: New feature Description: Added Adler32 checksum as a filter in pipeline Platforms tested: arabica (fortran), eirene (, C++), modi4 (parallel, fortran) Misc. update: Update release_docs/RELEASE.
* [svn-r6358] Snapshot version 1.5 release 46HDF Admin2003-02-011-1/+1
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* [svn-r6330] Purpose:Quincey Koziol2003-01-241-0/+2
| | | | | | | | | | | | | | | Bug Fix Description: When calling H5Fopen with the core VFL driver, but without the H5F_ACC_CREAT flag goes ahead and creates a memory file. Solution: Check for the H5F_ACC_CREAT flag before allowing the memory file to be created. Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6318] Purpose:Bill Wendling2003-01-231-0/+7
| | | | | | | | Update Description: Added description of the configure bugfix for people specifying --with-*=/usr/include,/usr/lib in their scripts during configure...
* [svn-r6307] Purpose:Quincey Koziol2003-01-211-0/+2
| | | | | | | | | | | | | | | | | Bug fix Description: Currently, when the library encounters an object header message that isn't know, it fails to open that object in the file. Solution: Allow the library to skip over the unknown object header message and continue to process the remaining messages, in the hope that the skipped message isn't important later. If it is important, it will be caught at a higher level of the library. Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6267] Snapshot version 1.5 release 45HDF Admin2003-01-111-1/+1
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* [svn-r6252] Purpose:Quincey Koziol2003-01-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lots of performance improvements & a couple new internal API interfaces. Description: Performance Improvements: - Cached file offset & length sizes in shared file struct, to avoid constantly looking them up in the FCPL. - Generic property improvements: - Added "revision" number to generic property classes to speed up comparisons. - Changed method of storing properties from using a hash-table to the TBBT routines in the library. - Share the propery names between classes and the lists derived from them. - Removed redundant 'def_value' buffer from each property. - Switching code to use a "copy on write" strategy for properties in each list, where the properties in each list are shared with the properties in the class, until a property's value is changed in a list. - Fixed error in layout code which was allocating too many buffers. - Redefined public macros of the form (H5open()/H5check, <variable>) internally to only be (<variable>), avoiding innumerable useless calls to H5open() and H5check_version(). - Reuse already zeroed buffers in H5F_contig_fill instead of constantly re-zeroing them. - Don't write fill values if writing entire dataset. - Use gettimeofday() system call instead of time() system when checking the modification time of a dataset. - Added reference counted string API and use it for tracking the names of objects opening in a file (for the ID->name code). - Removed redundant H5P_get() calls in B-tree routines. - Redefine H5T datatype macros internally to the library, to avoid calling H5check redundantly. - Keep dataspace information for dataset locally instead of reading from disk each time. Added new module to track open objects in a file, to allow this (which will be useful eventually for some FPH5 metadata caching issues). - Remove H5AC_find macro which was inlining metadata cache lookups, and call function instead. - Remove redundant memset() calls from H5G_namei() routine. - Remove redundant checking of object type when locating objects in metadata cache and rely on the address only. - Create default dataset object to use when default dataset creation property list is used to create datasets, bypassing querying for all the property list values. - Use default I/O vector size when performing raw data with the default dataset transfer property list, instead of querying for I/O vector size. - Remove H5P_DEFAULT internally to the library, replacing it with more specific default property list based on the type of property list needed. - Remove redundant memset() calls in object header message (H5O*) routines. - Remove redunant memset() calls in data I/O routines. - Split free-list allocation routines into malloc() and calloc()- like routines, instead of one combined routine. - Remove lots of indirection in H5O*() routines. - Simplify metadata cache entry comparison routine (used when flushing entire cache out). - Only enable metadata cache statistics when H5AC_DEBUG is turned on, instead of always tracking them. - Simplify address comparison macro (H5F_addr_eq). - Remove redundant metadata cache entry protections during dataset creation by protecting the object header once and making all the modifications necessary for the dataset creation before unprotecting it. - Reduce # of "number of element in extent" computations performed by computing and storing the value during dataspace creation. - Simplify checking for group location's file information, when file has not been involving in file-mounting operations. - Use binary encoding for modification time, instead of ASCII. - Hoist H5HL_peek calls (to get information in a local heap) out of loops in many group routine. - Use static variable for iterators of selections, instead of dynamically allocation them each time. - Lookup & insert new entries in one step, avoiding traversing group's B-tree twice. - Fixed memory leak in H5Gget_objname_idx() routine (tangential to performance improvements, but fixed along the way). - Use free-list for reference counted strings. - Don't bother copying object names into cached group entries, since they are re-created when an object is opened. The benchmark I used to measure these results created several thousand small (2K) datasets in a file and wrote out the data for them. This is Elena's "regular.c" benchmark. These changes resulted in approximately ~4.3x speedup of the development branch when compared to the previous code in the development branch and ~1.4x speedup compared to the release branch. Additionally, these changes reduce the total memory used (code and data) by the development branch by ~800KB, bringing the development branch back into the same ballpark as the release branch. I'll send out a more detailed description of the benchmark results as a followup note. New internal API routines: Added "reference counted strings" API for tracking strings that get used by multiple owners without duplicating the strings. Added "ternary search tree" API for text->object mappings. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} Other platforms/configurations tested? FreeBSD 4.7 (sleipnir) serial & parallel Solaris 2.6 (baldric) serial
* [svn-r6234] Updated with the new MPE feature.Albert Cheng2003-01-041-0/+2
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* [svn-r6221] Snapshot version 1.5 release 44HDF Admin2002-12-211-1/+1
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* [svn-r6208] Raymond Lu2002-12-161-0/+2
| | | | | Misc. update: Update an error assertion improvement for nil VL string.
* [svn-r6193] Snapshot version 1.5 release 43HDF Admin2002-12-071-1/+1
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* [svn-r6140] Purpose:Pedro Vicente Nunes2002-11-261-0/+5
| | | | | | | | | | | | code warrior fix CW does not recognize the _stati64 type, changed HDstat macro accordingly Platforms tested: windows 2000 (MSVC, Code warrior) linux
* [svn-r6136] Raymond Lu2002-11-251-0/+2
| | | | | | | | | | | Purpose: new functions Description: H5Gget_num_objs, H5Gget_objname_by_idx and H5Gget_objtype_by_idx. Platforms tested: modi4, arabica, eirene Misc. update: RELEASE.txt updated.
* [svn-r6133] Snapshot version 1.5 release 42HDF Admin2002-11-231-1/+1
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* [svn-r6123] *** empty log message ***Quincey Koziol2002-11-201-1/+1
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* [svn-r6113] Purpose:Quincey Koziol2002-11-201-1/+4
| | | | | Note new "H5Zunregister" and "H5Zfilter_avail" functions, along with mentioning that Kent's shuffling code added an H5Pset_shuffle API function.
* [svn-r6099] Raymond Lu2002-11-181-0/+2
| | | | | | | | | | | Purpose: bug fix. Description: h5dump cannot dump data and datatype for VL string. Platforms tested: eirene, arabica Misc. update: MANIFEST, RELEASE.txt
* [svn-r6090] MuQun Yang2002-11-131-0/+4
| | | | | | | | | | | | Purpose: add "shuffle" filter note Description: Solution: Platforms tested: Misc. update: Update MANIFEST if you add or remove any file. Update release_docs/RELEASE for bug fixes, new features, etc. Update applicable document files too.
* [svn-r6062] Raymond Lu2002-11-071-0/+2
| | | | | | | | | | | | Purpose: New function. Description: H5Dget_offset returns the offset of a dataset's data relative to the beginning of a file. Platforms tested: arabica(simple function, one test should be enough.) Misc. update: RELEASE.txt
* [svn-r6060] Raymond Lu2002-11-061-0/+3
| | | | | | | | | | | Purpose: Add new functions Description: add H5Tget_native_type and H5Tis_variable_str. Platforms tested: arabica, eirene, modi4 Misc. update: MANIFEST and release_docs/RELEASE updated.
* [svn-r6059] Purpose:Albert Cheng2002-11-052-10/+29
| | | | | | Updated the parallel installation information Platforms tested: Highly sophiscated optical scanning (eyeball it)
* [svn-r6055] Purpose:Quincey Koziol2002-11-051-0/+1
| | | | | | | | | | | | | | New feature Description: Add support for scalar dataspaces in parallel I/O. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} Also, FreeBSD 4.7 (sleipnir) serial & parallel Misc. update: Update release_docs/RELEASE for bug fixes, new features, etc.
* [svn-r6050] Snapshot version 1.5 release 40HDF Admin2002-11-021-1/+1
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* [svn-r6043] Purpose:Quincey Koziol2002-10-291-0/+2
| | | | | | | | | | | | Bug fix Description: I/O using "none" selections in parallel wasn't working correctly. Also, add serial "none" selection test. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)}
* [svn-r6042] Raymond Lu2002-10-291-0/+2
| | | | | | | | Purpose: Change release note for new functions(H5Gget_comment, H5Arename, H5Aget_storage_size). Misc. update: Update release_docs/RELEASE for bug fixes, new features, etc.
* [svn-r6033] Snapshot version 1.5 release 39HDF Admin2002-10-261-1/+1
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* [svn-r6010] Purpose:Albert Cheng2002-10-161-0/+2
| | | | Updated.
* [svn-r6004] Purpose:Quincey Koziol2002-10-151-2/+7
| | | | Describe new HDF5_DISABLE_VERSION_CHECK environment feature.
* [svn-r6001] Purpose:Albert Cheng2002-10-151-0/+2
| | | | | | Updated with bug fix Platforms tested: No test since this is just a text file.
* [svn-r5979] Snapshot version 1.5 release 38HDF Admin2002-10-121-1/+1
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* [svn-r5958] Elena Pourmal2002-10-021-0/+1
| | | | | | | | | | | | | | Purpose: Added missing fortran functions h5set(get)_buffer_f. Also added docs and tests for them. Solution: Currently functions do not accept conversion and background buffers. This corresponds to H5set(get)_buffer call with buffer pointers set to NULL. If there is a demand, I can overload the functions to have new parameters and go through all trouble creating functions for all supported datatypes. Platforms tested: Solaris 2.7, Linux 2.2., IRIX64-6.5
* [svn-r5956] Elena Pourmal2002-10-011-0/+10
| | | | | | | | | | | | | | | | | | Purpose: Added new F90 APIs Description: I added new F90 APIs, tests, and documentation for the following functions: h5fget_obj_count_f h5pequal_f h5tget_member_index_f h5fget_obj_ids_f h5pget_fclose_degree_f h5pset_fclose_degree_f Documentation for exisiting functions was missing: h5freopen_f, h5fflush_f, h5fmount_f, h5unmount_f, h5fget_create_plist_f, h5fget_access_plist_f. Platforms tested: Solaris 2.7, Linux 2.2 and IRIX64-6.5
* [svn-r5951] Raymond Lu2002-09-301-0/+4
| | | | | | | | | | | Purpose: New API functions Description: Added API functions to return pointer to low-level file handle (H5Fget_vfd_handle and H5FDget_vfd_handle) and related property list setting functions(H5Pset_family_offset and H5Pset_multi_type). Platforms tested: Linux 2.2(eirene), Solaris 2.7(arabica), IRIX64 6.5(modi4)
* [svn-r5949] Snapshot version 1.5 release 37HDF Admin2002-09-281-1/+1
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* [svn-r5948] Elena Pourmal2002-09-251-1/+4
| | | | | | | | | | Purpose: Added new fortran functions Description: Source code, tests and documentation for h5glink2_f and h5gmove2_f functions were added. I also added missing man page for h5glink_f Platforms tested: Solaris 2.7, IRIX64-6.5 and Liniux 2.2
* [svn-r5946] Elena Pourmal2002-09-241-0/+8
| | | | | | | | | | | | | | Purpose: Added missing fortran functions. Description: Four Library Fortran API functions have been added: h5get_libversion_f, h5_check_version_f, h5garbage_collect_f and h5dont_atexit_f. Only first two functions were tested. Documentation file and RELEASE.txt were updated. Platforms tested: Solaris 2.7, IRIX64-6.5 and Linux 2.2
* [svn-r5927] Snapshot version 1.5 release 36HDF Admin2002-09-141-1/+1
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* [svn-r5926] Purpose:Quincey Koziol2002-09-131-1/+4
| | | | | | | | | | | | | API name change Description: Change all "space time" references to "alloc time", including API functions and macro definitions, etc. Platforms tested: FreeBSD 4.6 (sleipnir) w/C++ Solaris 2.7 (arabica) w/FORTRAN IRIX64 6.5 (modi4) w/parallel & FORTRAN
* [svn-r5912] Snapshot version 1.5 release 35HDF Admin2002-09-071-1/+1
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* [svn-r5908] Snapshot version 1.5 release 34HDF Admin2002-08-311-1/+1
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* [svn-r5900] Purpose:Quincey Koziol2002-08-271-0/+2
| | | | | | | | | | | Code cleanup/New Feature Description: Improve the space allocation in the file by re-using freed space more effectively. Platforms tested: FreeBSD 4.6 (sleipnir) w/serial & parallel
* [svn-r5899] Purpose:Quincey Koziol2002-08-271-0/+6
| | | | | | | Update release notes Description: Mention new space allocation features.
* [svn-r5880] Raymond Lu2002-08-201-0/+5
| | | | | Purpose: add information of compact dataset.
* [svn-r5869] Snapshot version 1.5 release 33HDF Admin2002-08-101-1/+1
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* [svn-r5859] ./hdf5-devel/release_docs/RELEASE.txtRobb Matzke2002-08-091-0/+20
| | | | | | | | | | | | | | | | | Purpose: Merged from 1.4 branch Description: API tracing improvements Platforms tested: Linux (--disable-hsizet didn't work before my changes and still doesn't work, but --enable-hsizet is fine). Note: This checkin includes temporary code in H5FDmpiposix.c to turn off GPFS byte range token prefetches on ASCI/Blue. Once the HDF5 API supports the necessary prerequisite functionality this temporary code can be migraged up above HDF5.
* [svn-r5841] Snapshot version 1.5 release 32HDF Admin2002-08-031-1/+1
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* [svn-r5838] MuQun Yang2002-07-251-7/+0
| | | | | | | | | | | Purpose: update windows support. Description: 1. Since we don't support w98 anymore, delete the description about w98. Actually DLL may work on w98. 2. Release dll work for new HDF5 release. Solution: Platforms tested:
* [svn-r5814] Purpose:Quincey Koziol2002-07-191-4/+6
| | | | | | | | | | | | | | | | | | Bug Fix Description: It was possible to create corrupted metadata information (either in memory or in the file or both) with a parallel I/O program because of the way metadata writes were being handled for writes out of the metadata cache. Solution: Added a dataset transfer property called "block before metadata write" which is used by the MPI-I/O and MPI-posix drivers to sync up all the processes before attempting a metadata write. This property is currently only for metadata writes from the metadata cache. Platforms tested: IRIX64 6.5 (modi4) w/parallel
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