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* [svn-r10677] Purpose:MuQun Yang2005-04-271-0/+15
| | | | | | | | | | | | | Add some comments for H5Pset_scaleoffset. Description: Solution: Platforms tested: No need to test. Misc. update:
* [svn-r10671] Purpose:Xiaowen Wu2005-04-261-9/+15
| | | | | | | | | | | | | | | | | | | | New feature. Description: The H5Pset_scaleoffset is changed for the scaleoffset filter to handle both integer and floating-point data. Currently, the D-scaling method from GRIB has been implemented for compressing floating-point data. Solution: One more parameter is added to the H5Pset_scaleoffset interface to let user specify what type of data is used and what method to use as well as corresponding parameters. Platforms tested: heping Misc. update:
* [svn-r10628] Purpose:Quincey Koziol2005-04-181-1/+0
| | | | | | | | | | | Code cleanup Description: Clean up various warnings reported by the Windows team. Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r10396] Purpose:Xiaowen Wu2005-03-241-5/+3
| | | | | | | | | | | | | | Minor modification. Description: Remove some redundant codes. Solution: Platforms tested: heping Misc. update:
* [svn-r10024] Purpose:Xiaowen Wu2005-02-171-3/+59
| | | | | | | | | | | | | | New feature. Description: Add H5Zset_scaleoffset function for setting up the scaleoffset filter. Solution: Platforms tested: heping, copper, arabica Misc. update:
* [svn-r9857] Purpose: MaintenanceElena Pourmal2005-01-221-3/+0
| | | | | | | | | | | | | | Description: Removed PABLO from the source Solution: Platforms tested: arabica with 64-bit, copper with parallel, heping with GNU C and C++ and PGI fortran (but I disabled hl, there is some weird problem only on heping: F9XMODFLAG is not propagated to the Makefile files Misc. update:
* [svn-r9758] Purpose:MuQun Yang2005-01-061-0/+46
| | | | | | | | | | | | | | | | | Adding framework of N-bit filter Description: N-bit filter is required for NetCDF project. To add N-bit filter, configure.in configure, Makefile.in under src and other filter-related source code needs to be updated. Currently, N-bit tests are turned off from the library. So the change will affect daily test. Solution: Platforms tested: sol 2.7, linux 2.4, aix 5.1 Misc. update:
* [svn-r9727] Purpose:Quincey Koziol2004-12-291-23/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-) Description: Generally speaking, this is the "signed->unsigned" change to selections. However, in the process of merging code back, things got stickier and stickier until I ended up doing a big "sync the two branches up" operation. So... I brought back all the "infrastructure" fixes from the development branch to the release branch (which I think were actually making some improvement in performance) as well as fixed several bugs which had been fixed in one branch, but not the other. I've also tagged the repository before making this checkin with the label "before_signed_unsigned_changes". Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel & fphdf5 FreeBSD 4.10 (sleipnir) w/threadsafe FreeBSD 4.10 (sleipnir) w/backward compatibility Solaris 2.7 (arabica) w/"purify options" Solaris 2.8 (sol) w/FORTRAN & C++ AIX 5.x (copper) w/parallel & FORTRAN IRIX64 6.5 (modi4) w/FORTRAN Linux 2.4 (heping) w/FORTRAN & C++ Misc. update:
* [svn-r9563] Purpose:Quincey Koziol2004-11-231-7/+105
| | | | | | | | | | | | | Code optimization Description: Change how default allocation time is handled internally to the library, to avoid some performance issues with property lists. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Solaris 2.7 (arabica) Too minor to require h5committest
* [svn-r8791] Purpose: Rewrote metadata cache (H5AC.c, etc.) to improve ↵John Mainzer2004-07-021-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | performance. Description: Replaced the old metadata cache with a cache with a modified LRU replacement policy. This should improve the hit rate. Solution: Since we want to flush cache entries in increasing address order, I used the threaded binary B-tree code to store the cache entries. There is a fair bit of overhead here, so we may want to consider other options. While the code is designed to allow the support of other replacement algorithms, at present, only a modified version of LRU is supported. The modified LRU algorithm requires that a user selectable portion of the cache entries be clean. The clean entries are evicted first when writes are not permitted. If the pool of clean entries is used up, the cache grows beyond its user specified maximum size. The cache can also exceed its maximum size if the combined size of the protected (or locked) entries exceeds the maximum size of the cache. Platforms tested: eirene (serial, parallel, fp), h5committested Misc. update:
* [svn-r8782] Purpose:Quincey Koziol2004-07-011-1/+1
| | | | | | | | | | | Code cleanup Description: Clean up almost all warnings from Windows builds. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8781] James Laird2004-07-011-13/+61
| | | | | | | | | | | | | | | | Purpose: HDF5 now supports SZIP with no encoder. Description: SZIP can be configured to have both encoder and decoder or just to have the decoder. HDF5 can now query the configuration of any filter, and will throw errors if users try to write using a filter with encoding disabled. Solution: Added H5Zget_filter_info function, changed API for H5Pget_filter and H5P_get_filter_by_id. See SZIP RFC. Platforms tested: Copper (fortran, C++, parallel), Sleipnir (C++), Arabica (fortran, C++), Verbena (fortran, C++) Misc. update:
* [svn-r8760] Purpose:Quincey Koziol2004-06-291-1/+1
| | | | | | | | | | | | | Code cleanup & small bug fix Description: Regenerate dependency files Add htri_t as separate type from hbool_t for code tracing purposes. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel too minor to require h5committest
* [svn-r8731] Purpose:Quincey Koziol2004-06-231-7/+4
| | | | | | | | | | | | | | | Code cleanup & minor optimization Description: Re-work the way interface initialization routines are specified in the library to avoid the overhead of checking for them in routines where there is no interface initialization routine. This cleans up warnings with gcc 3.4, reduces the library binary size a bit (about 2-3%) and should speedup the library's execution slightly. Platforms tested: FreeBSD 4.10 (sleipnir) w/gcc34 h5committest
* [svn-r8683] Purpose:Quincey Koziol2004-06-141-1/+1
| | | | | | | | | | | | | Code optimization Description: Use 'size_t' instead of 'hsize_t' to track the number of elements in memory buffers, especially for type conversion. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8620] Snapshot version 1.7 release 27HDF Admin2004-06-061-1/+2
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* [svn-r8600] Purpose:Quincey Koziol2004-05-311-3/+1
| | | | | | | | | | | | | Code optimization Description: Don't recompute the internal index value for looking up the chunk in the hash table, just use the value already computed from iterating through the chunks. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel
* [svn-r8590] Purpose:Quincey Koziol2004-05-271-11/+17
| | | | | | | | | | | | | | | | | | | | | Code optimization & bug fix Description: When dimension information is being stored in the storage layout message on disk, it is stored as 32-bit quantities, possibly truncating the dimension information, if a dimension is greater than 32-bits in size. Solution: Fix the storage layout message problem by revising file format to not store dimension information, since it is already available in the dataspace. Also revise the storage layout data structures to be more compartmentalized for the information for contiguous, chunked and compact storage. Platforms tested: FreeBSD 4.9 (sleipnir) w/parallel Solaris 2.7 (arabica) h5committest
* [svn-r8383] Purpose:Quincey Koziol2004-04-181-2/+2
| | | | | | | | | | | | | Code cleanup Description: Clean up lots of warnings based on those reported from the SGI compilers as well as gcc. Platforms tested: SGI O3900, IRIX64 6.5 (Cheryl's SGI machine) FreeBSD 4.9 (sleipnir) w/ & w/o parallel h5committest
* [svn-r8158] Purpose:Quincey Koziol2004-02-061-42/+8
| | | | | | | | | | | | | | | | | Code cleanup/optimization Description: Query property list values once, at the beginning of the I/O routines, instead of querying the property list values multiple (lots!) of times in lower level routines. Solution: Create "property list caches" for internal library queries of the property list values. Platforms tested: IBM p690 (copper) w/parallel & fphdf5 h5committest
* [svn-r8149] Pedro Vicente Nunes2004-02-041-3/+3
| | | | | | | | | | | | | | Purpose: replaced name of delete filter with remove filter for the new function H5Premove_filter Description: Solution: Platforms tested: linux Misc. update:
* [svn-r8117] Purpose:Quincey Koziol2004-01-271-27/+27
| | | | | | | | | | | | | Code cleanup Description: Add C++ and FORTRAN wrappers for new H5Pdelete_filter routine, along with documentation and a note in the release notes. Platforms tested: FreeBSD 4.9 (sleipnir) Linux 2.4 (verbena) w/ C++ and FORTRAN Too minor for full h5committest
* [svn-r8113] Purpose:Pedro Vicente Nunes2004-01-261-0/+49
| | | | | | | | | | | | | | | | | | | new library function H5Pdelete_filter deletes one or all filters from a dataset creation property list this was done for the NONE option of h5repack, added tests for this feature added a test for the new function in /test/dsets.c Description: Solution: Platforms tested: linux solaris AIX Misc. update:
* [svn-r8077] Snapshot version 1.7 release 16HDF Admin2004-01-181-1/+2
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* [svn-r8053] Purpose:Quincey Koziol2004-01-131-2/+1
| | | | | | | | | | | | | | | | | | | | Bug fix Description: Correct two problems with variable-length datatypes in datasets: - When overwriting an entire dataset, writing the fill value to the file would be skipped, causing problems for VL datatypes when objects in the file had been unlinked (and thus the space in the file was not all zeros) - When an application has set a fill-value for a dataset and the dataset's datatype contained a VL datatype, the library was filling space on disk with the memory form of the VL information, instead of the disk form. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r8051] Snapshot version 1.7 release 15HDF Admin2004-01-111-1/+2
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* [svn-r8038] Purpose:Quincey Koziol2004-01-081-4/+36
| | | | | | | | | | | | | | | | | | | | Bug fix Description: When two property lists are compared, the H5Pequal routine was just comparing the raw information for the property values. This causes problems when the raw information contains pointers to other information. Solution: Allow a 'compare' callback to be registered for properties, so that a user application get perform the comparison itself, allowing for "deep" compares of the property value. This was exported to the H5Pregister & H5Pinsert routines in the development branch, but not the release branch. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r7453] Purpose:Quincey Koziol2003-09-101-8/+4
| | | | | | | Checkpoint file format spec. Description: Clarifications and cleanups related to file format review.
* [svn-r7126] Purpose:Quincey Koziol2003-06-301-0/+7
| | | | | | | | | | | | | Code cleanup Description: Add in rest of szip "options mask" macros that were missing. Also made "raw" options mask set by the library, instead of requiring users to always set it. Platforms tested: FreeBSD 4.8 (sleipnir) Minor tweaks too small fo h5committest
* [svn-r7029] Purpose:Quincey Koziol2003-06-121-0/+4
| | | | | | | | | | | | | New feature/Bug fix Description: Add new fill time value - H5D_FILL_TIME_IFSET which writes the fill value to a dataset if the user has defined one, otherwise not writing the fill value to the dataset. Platforms tested: FreeBSD 4.8 (sleipnir) serial & parallel h5committest
* [svn-r6898] Purpose:Quincey Koziol2003-05-191-1/+3
| | | | | | | | | | | Code cleanup Description: Improve error reporting for pixels per scanline check. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest not needed.
* [svn-r6837] Purpose:Quincey Koziol2003-05-081-2/+2
| | | | | | | | | | | | | | | Code cleanup. Description: Move many package or internal function prototypes and macro definitions into tighter scope according to their current use. Added more comments where appropriate. Eliminate ancient, unused functions. Added a couple "accessor" functions to get parts of data structures which were moved out of scope. Platforms tested: h5committested
* [svn-r6610] Purpose:Quincey Koziol2003-04-091-44/+272
| | | | | | | | | | | | | | | | | | | | | | | | Code cleanup & new features Description: Added three new API functions for working on I/O filters: H5Pmodify_filter, H5Pget_filter_by_id and H5Pall_filters_avail. Documentation on these will be added for the 1.6.0 release, until then, we'll have to use the source code. Also, simplified the H5Pset_szip and H5Pset_shuffle API interfaces, since those filters are using the new "set local" callback facility to set dataset- specific parameters. Probably, some of the changes to internal H5Z routines are captured in these changes also. Solution: Platforms tested: FreeBSD 4.8 (sleipnir) w/szip Linux 2.4 (sleipnir) w/szip Solaris 2.7 (arabica) w/FORTRAN IRIX64 6.5 (modi4) w/szip, FORTRAN & parallel Misc. update:
* [svn-r6577] Purpose:Quincey Koziol2003-04-031-11/+16
| | | | | | | | | | | | | | | | | | Code cleanup (sorta) Description: The H5Pset_szip API call was forcing users to pass in their parameters in the same way as the internal representation of the filter parameters used by the library (as an array of unsigned values). Solution: Changed to pass in separate parameters in a more user-friendly format. Platforms tested: FreeBSD 4.8 (sleipnir) IRIX64 6.5 (modi4) w/parallel Misc. update:
* [svn-r6551] Purpose:MuQun Yang2003-04-011-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To support szip compression in HDF5 Description: szip compression support is required by NASA ESDIS. The compression algorithm is good for scientific data. In HDF5, we add another filter function to make szip as a default compression package as we did for gzip(or zlib). In this check-in, a new function called H5Pset_szip was added into H5Pdcpl.c, this function is very similar to H5Pset_deflate. The only difference is SZIP needs four parameters from the user to get the compression done while gzip needs only one. So we pass a pointer to this function instead of an integer number. The description of the four parameters of szip should be in different documents. H5Z.c and other header files were simply modified to have HDF5 know szip. Solution: See the decription Platforms tested: Since there are changes of configure.in and configure,I didn't use h5committest. I tested with four platforms. 1) Linux 2.4 (eirene) 2) Solaris 2.7(arabica) 3) windows 2000(VS 6.0) 4) SGI IRIX6.5-64(modi4) For test 1)-3), only basic C tests were done For modi4 test, I tested 64-bit C,parallel and fortran. All tests passed, except a warning message from szip library when checksum is used in some order, which doesn't cause any real problems. Misc. update:
* [svn-r6415] Purpose:Quincey Koziol2003-02-181-2/+0
| | | | | | | | | | | | | Code cleanup Description: Changed hard-coded magic number (32) for the maximum number of filters in a filter pipeline to use a symbolic constant (H5Z_MAX_NFILTERS) instead. This limit could (and probably should) be removed to allow an unlimited number of filters in a pipeline. Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6411] Purpose:Quincey Koziol2003-02-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | Code cleanup Description: Clean up miscellaneous warnings which have crept into the code. Fix "_POSIX_C_SOURCE not defined" warning on FreeBSD. Adjust gcc compiler flags to be more concise for production mode. Refactor the H5O code so that there is a stronger boundary between code in the H5O package and code in the library which just calls H5O routines. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} FreeBSD 4.7 (sleipnir) serial & parallel and gcc 2.95.4 & gcc 3.2.2 Misc. update: Update MANIFEST if you add or remove any file.
* [svn-r6400] Raymond Lu2003-02-121-6/+6
| | | | | | | | | | | Purpose: Change feature Description: Switch to Fletcher32 from Adler32 checksum Platforms tested: arabica, eirene, modi4 Misc. update: MANIFEST and RELEASE.txt updated.
* [svn-r6387] Purpose:Quincey Koziol2003-02-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r6375] Raymond Lu2003-02-041-0/+42
| | | | | | | | | | | 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-r6266] Purpose:Quincey Koziol2003-01-101-21/+21
| | | | | | | | | | | | Code cleanup/new feature. Description: Split FUNC_LEAVE into API and non-API specific versions. This allows a solution to compiling this branch with C++, as well as reducing the size of the binaries produced. Platforms tested: FreeBSD 4.7 (sleipnir) w/serial, parallel (including MPE) & thread-safe
* [svn-r6255] Purpose:Quincey Koziol2003-01-091-2/+3
| | | | | | | | | | Code cleanup Description: Clean up a few more warnings and update dependencies. Platforms tested: Linux 2.2.18smp (eirene) serial & parallel
* [svn-r6252] Purpose:Quincey Koziol2003-01-091-14/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r6108] Purpose:Quincey Koziol2002-11-201-11/+5
| | | | | | | | | | | | Code cleanup. Description: Cleaned up compiler warnings & updated a few comments. Platforms tested: Tested h5committest {arabica (fortran), eirene (fortran, C++) modi4 (parallel, fortran)} FreeBSD 4.7 (sleipnir)
* [svn-r6087] MuQun Yang2002-11-131-0/+55
| | | | | | | | | | | | | | | | | | | Purpose: Adding internal shuffle filter Description: With the combination of shuffling filter with general compression algorithm, the compression ratio may be improved without adding much encoding and decoding time for many real NASA datasets(especially floating data) and other application datasets(See techNotes). Solution: SHuffle the bytes within the data to utilize the locality. Platforms tested: arabica , eirene, modi4 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-r5926] Purpose:Quincey Koziol2002-09-131-11/+13
| | | | | | | | | | | | | 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-r5872] Purpose:Quincey Koziol2002-08-121-0/+1172
Code cleanup Description: Move get/set routines for each type of property list (file creation, dataset creation, file access and dataset transfer) into their own source code module. Platforms tested: FreeBSD 4.6 (sleipnir)
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