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* [svn-r22703] Description:Dana Robinson2012-08-211-551/+537
| | | | | | | | Propagated Windows and POSIX correctness changes from SEC2 VFD to the MPI-POSIX VFD. Fixes HDFFV-8058. Tested on: jam w/ parallel and fortran enabled
* [svn-r22676] Changes needed to make the default free-list mapping from ↵Vailin Choi2012-08-131-1/+1
| | | | H5FD_FLMAP_SINGLE to H5FD_FLMAP_DICHOTOMY.
* [svn-r22666] Description:Quincey Koziol2012-08-111-10/+10
| | | | | | | | | | Merge "flush me last" & "flush me collectively" feature from the avoid_truncate branch back to the trunk. (To help enable allowing the free space section info to reside in temporary address space) Tested on: Mac OSX/64 10.7.4 (amazon) w/debug, gcc 4.7.x, C++, FORTRAN & threadsafe (h5committest forthcoming)
* [svn-r21919] Description:Quincey Koziol2012-02-091-62/+31
| | | | | | | | Refactor function name macros and simplify the FUNC_ENTER macros, to clear away the cruft and prepare for further cleanups. Tested on: Mac OSX/64 10.7.3 (amazon) w/debug, production & parallel
* [svn-r21366] JIRA HDFFV-2748 replace use of _WIN32 in source. Created new ↵Allen Byrne2011-09-061-302/+302
| | | | | | defines H5_HAVE_WIN32_API and H5_HAVE_VISUAL_STUDIO defines to use. These can be properly set during configurration. Tested: windows and local linux - reviewed internally
* [svn-r20648] Description:Quincey Koziol2011-04-261-1/+1
| | | | | | | | | Correct spelling error in macro. (FUNC_ENTER_NOAPI_NOFUNC_NOINIT -> FUNC_ENTER_NOAPI_NOINIT_NOFUNC) Tested on: Eyeballed only. (h5committest not required for this branch)
* [svn-r20588] Description:Quincey Koziol2011-04-211-7/+6
| | | | | | | | | Clean up code a bit, move new "terminate" VFD callback to new position in H5FD_class_t struct. Tested on: Mac OS X/32 10.6.7 (amazon) w/debug & production (h5committest not required on this branch)
* [svn-r20587] Description:Quincey Koziol2011-04-211-1/+4
| | | | | | | | Initial commit of John Biddescomb's VFD & MPI tweaks. Tested on: None (yet) (h5committest not required for this branch)
* [svn-r19796] Bug 2091: remove all Metraowerks compiler code bracheted by ↵Albert Cheng2010-11-161-1/+1
| | | | | | | | __MWERKS__. Metraowerks compiler is no more. Make the code cleaner. Tested: H5committest plus jam serial.
* [svn-r19096] Description:Quincey Koziol2010-07-191-0/+2
| | | | | | | | | | | | | | | | | | | | | Bring "round robin" metadata write strategy code from 'round_robin' branch to the trunk. Tested on: FreeBSD/32 6.3 (duty) in debug mode FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x, w/C++ & FORTRAN, w/threadsafe, in debug mode Linux/64-amd64 2.6 (amani) w/Intel compilers, w/default API=1.6.x, w/C++ & FORTRAN, in production mode Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN, w/szip filter, in production mode Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN, in production mode Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in debug mode Mac OS X/32 10.6.3 (amazon) in debug mode Mac OS X/32 10.6.3 (amazon) w/C++ & FORTRAN, w/threadsafe, in production mode
* [svn-r18650] Description:Quincey Koziol2010-04-271-1/+1
| | | | | | | | | | | | | | | | | | | Bring back various minor tweaks & cleanups from the revise_chunks branch. Tested on: FreeBSD/32 6.3 (duty) in debug mode FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x, w/C++ & FORTRAN, w/threadsafe, in debug mode Linux/64-amd64 2.6 (amani) w/Intel compilers, w/default API=1.6.x, w/C++ & FORTRAN, in production mode Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN, w/szip filter, in production mode Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN, in production mode Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
* [svn-r16560] Description:Quincey Koziol2009-03-101-0/+2
| | | | | | | | | | Remove another call to H5E_clear_stack() from within the library. Clean up lots of compiler warnings. Tested on: Mac OS X/32 10.5.6 (amazon) (followup on other platforms forthcoming)
* [svn-r15861] Description:Quincey Koziol2008-10-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Various bug fixes & cleanups with VFDs and file free space changes, along with cleaning up compiler warnings. Enable more VFDs (for 'make check-vfd' testing) for many tests. Tested on: Mac OS X/32 10.5.5 (amazon) in debug mode Mac OS X/32 10.5.5 (amazon) w/C++ & FORTRAN, w/threadsafe, in production mode FreeBSD/32 6.3 (duty) in debug mode FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode Linux/32 2.6 (kagiso) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe, in debug mode Linux/64-amd64 2.6 (smirom) w/Intel compilers w/default API=1.6.x, w/C++ & FORTRAN, in production mode Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN, w/szip filter, in production mode Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN, in production mode Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
* [svn-r15800] Description:Quincey Koziol2008-10-071-17/+17
| | | | | | | | | | | | | | | | | | | | | | | Bring file free space branch changes through r15795 into trunk, which includes a fair bit of code cleanup & rearrangement along with a couple of bug fixes also. Tested on: Mac OS X/32 10.5.5 (amazon) in debug mode Mac OS X/32 10.5.5 (amazon) w/C++ & FORTRAN, w/threadsafe, in production mode FreeBSD/32 6.3 (duty) in debug mode FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode Linux/32 2.6 (kagiso) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe, in debug mode Linux/64-amd64 2.6 (smirom) w/Intel compilers w/default API=1.6.x, w/C++ & FORTRAN, in production mode Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN, w/szip filter, in production mode Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN, in production mode Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
* [svn-r15485] Purpose: Allow library to shut down properly when objects have ↵Neil Fortner2008-08-191-1/+1
| | | | | | | | | | | | | | | | reference count > 1. Description: Added a new field 'app_count' to H5I_id_info_t struct, to track the reference count on an id due to the application. the old 'count' field tracks the total. Generally any id visible to the application gets placed in app_count. Added app_ref boolean parameter to H5I_inc_ref, H5I_dec_ref, H5I_register, H5I_clear_type, and a few other functions, to specify whether the operation(s) being performed on the id(s) are due to the application (TRUE) or not (FALSE). Test added for this case. Tested: kagiso, smirom, linew (h5committest)
* [svn-r13766] In Visual Studio 2005 for 64-bit, _WIN32 is defined, but not ↵Scott Wegner2007-05-181-12/+12
| | | | | | | WIN32, so I've standardized all #ifdef's to use _WIN32. This should not affect any other platform. Tested: Visual Studio (32- and 64-bit) on Win XP
* [svn-r13253] Updated all C and C++ style source code files with the THG ↵Albert Cheng2007-02-071-2/+3
| | | | | | | | | copyright notice. Tested platform: Kagiso only since it is only a comment block change. If it works in one machine, it should work in all, I hope. Still need to check the parallel build on copper.
* [svn-r13139] Fixed the MULTI problem (Bug #731) that corrupted the data. ↵Raymond Lu2007-01-121-4/+10
| | | | | | | The problem came from the EOA for the whole MULTI file. It's taken out because it's meaningless for MULTI file. Instead, each individual file has its EOA.
* [svn-r13068] Ran bin/reconfigure. Some of the scripts have been changed or ↵James Laird2006-12-181-2/+2
| | | | | | | | | haven't been run in a while, so many of the source files were updated with tracing macros, etc. No code changes by me. Tested on kagiso and smirom.
* [svn-r12440] Purpose:Quincey Koziol2006-06-271-5/+5
| | | | | | | | | | | Code cleanup Description: Trim trailing whitespace in Makefile.am and C/C++ source files to make diffing changes easier. Platforms tested: None necessary, whitespace only change
* [svn-r11470] Purpose:John Mainzer2005-09-271-9/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Repair synchronization bug in the metadata cache in PHDF5 Also repair numerous other bugs that surfaced in testing the bug fix. Description: While operations modifying metadata must be collective, we allow independant reads. This allows metadata caches on different processes to adjust to different sizes, and to place the entries on their dirty lists in different orders. Since only process 0 actually writes metadata to disk (all other processes thought they did, but the writes were discarded on the theory that they had to be collective), this made it possible for another process to modify metadata, flush it, and then read it back in in its original form (pre-modification) form. The possibilities for file corruption should be obvious. Solution: Make the policy that only process 0 can write to file explicit, and visible to the metadata caches. Thus only process 0 may flush dirty entries -- all other caches must retain dirty entries until they are informed by process 0 that the entries are clean. Synchronization is handled by counting the bytes of dirty cache entries created, and then synching up between the caches whenever the sum exceeds an (eventually user specified) limit. Dirty metadata creation is consistent across all processes because all operations modifying metadata must be collective. This change uncovered may bugs which are repaired in this checkin. It also required modification of H5HL and H5O to allocate file space on insertion rather than on flush from cache. Platforms tested: H5committest, heping(parallel & serial) Misc. update:
* [svn-r11463] Purpose:Quincey Koziol2005-09-231-2/+4
| | | | | | | | | | Code cleanup Description: #ifdef out blksize field in file structure for non-GPFS builds. Platforms tested: None - just eyeballed - very minor.
* [svn-r11448] Purpose:Pedro Vicente Nunes2005-09-211-2/+6
| | | | | | | | | | | | | | | | | | | new features Description: add support for compiling the library and testphdf5 in Windows Solution: Platforms tested: Linux AIX Solaris Windows VC6 Misc. update:
* [svn-r11280] Purpose:Quincey Koziol2005-08-201-2/+2
| | | | | | | | | | | Code cleanup Description: Clean up unused variables & use portability macros better Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r11245] Purpose:Quincey Koziol2005-08-131-21/+21
| | | | | | | | | | | | | | | | | | | | Code cleanup Description: Trim trailing whitespace, which is making 'diff'ing the two branches difficult. Solution: Ran this script in each directory: foreach f (*.[ch] *.cpp) sed 's/[[:blank:]]*$//' $f > sed.out && mv sed.out $f end Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r10628] Purpose:Quincey Koziol2005-04-181-6/+6
| | | | | | | | | | | Code cleanup Description: Clean up various warnings reported by the Windows team. Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r10117] Purpose:Albert Cheng2005-03-021-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug fix. Description: "testphdf -p" would with data verification errors. The reasons were that the MPIPOSIX driver file open and close, especially the close routine provide no "coordination" between processes. The testphdf5 tests reuse the same file for test data file by opening using H5Fcreate with the HDF5_FCC_TRUNC option. The test routines do not provide any code to ensure that all processes have finished one test before moving to the next test. Some "faster" process would have finished verifying its portion of data as correct and move to the next test which opens the same file with TRUNCATOIN which truncates the previous data file. But some "slower" processes are still verifying the "previous" data file which all of a sudden got truncated by the "faster" process. Solution: Technically, the test program should be fixed to ensure all processes have finished one test before any is allowed to move to the next test. OTOH, the MPIO VFD has no problem with this test because MPI-IO requires File open and close be called collectively correct and ensure it is returned properly. I choose to fix the MPIPOSIX close routine to provide some sort of coordination between processes by requiring all processes to have completed the close of a file before it is returned to user space. This makes the MPIPOSIX close routine behaves more like the MPIO close routine, thus provide more protection for user applications that fail to code in the coordination. But having the barrier in the MPIPOSIX close routine would penalize applications where it is "okay" for some processes to close its file handle and race ahead to do other things since it is not going to access this file, therefore whether other processes are still using the file is immaterial. Maybe this protective coordination should be optional and can be turned off by confident users who need not this sort of protection. Platforms tested: "h5committested" and tested in modi4 and tesla. 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-r8731] Purpose:Quincey Koziol2004-06-231-3/+24
| | | | | | | | | | | | | | | 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-r8134] Purpose:Quincey Koziol2004-01-311-0/+26
| | | | | | | | | | | | | | | | Code cleanup Description: Add destructor to match constructor fr VFLs when they are shut down by the library. Solution: Added H5FD_*_term() routines to "undo" changes made in H5FD_*_init() routines. Platforms tested: IBM p690 (copper) too minor to require h5committest
* [svn-r8126] Purpose:Quincey Koziol2004-01-311-131/+118
| | | | | | | | | | | | | | | | | Bug fix/optimization Description: Address slowdown in MPI-I/O file metadata operations that was introduced mid-stream. We now _require_ a POSIX compliant parallel file system for the MPI-I/O file driver (as well as for the MPI-POSIX file driver). Also optimized file open operation when the file is being created by reducing the number of collective & syncronizing calls. Additionally, refactor the MPI routines into a common place, eliminating duplicated code. Platforms tested: FreeBSD 4.9 (sleipnir) w/parallel h5committest
* [svn-r7993] Purpose:Quincey Koziol2003-12-291-1/+1
| | | | | | | | | | | | Code cleanup, bug fixes Description: Wrap up rest of changes necessary for fixing the "short" MPI-I/O read problem that Robb reported. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r7860] Purpose:Quincey Koziol2003-11-201-0/+11
| | | | | | | | | | | | | | | | | Bug fix Description: Our previous "optimization" of metadata writing which only wrote metadata from one process was abusing MPI-I/O and after some consultation with Rob Ross and Rajeev Thakur, Albert & I have come up with a solution... Solution: Instead of only writing from one process, issue a collective write operation with all processes, for metadata writes. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r7765] Purpose:Quincey Koziol2003-10-281-1/+6
| | | | | | | | | | | | | Code cleanup Description: More collective/independent cleanups to straighten out code contortions. Platforms tested: FreeBSD 4.9 (sleipnir) FreeBSD 4.9 (sleipnir) w/parallel Linux 2.4 (verbena) w/fortran & C++ Solaris 2.7 (arabica) w/64-bit extensions enabled
* [svn-r7393] Purpose:Quincey Koziol2003-08-231-102/+106
| | | | | | | | | | | Code cleanup Description: De-linted more code Platforms tested: FreeBSD 4.8 (sleipnir) w/parallel too minor to require h5committest
* [svn-r7181] Purpose:Quincey Koziol2003-07-071-119/+0
| | | | | | | | | | | Version update Description: Removed 1.4 compatibility code in the library. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r7122] Purpose:Quincey Koziol2003-06-301-8/+3
| | | | | | | | | | | | | Code cleanup/Feature removal Description: Remove "round robin" writing of metadata in MPI VFDs (and a couple of other places). This never really worked the way I hoped it would and it causes problems on certain machines. Platforms tested: FreeBSD 4.8 (sleipnir) w/parallel Too small for triple check.
* [svn-r7019] Purpose:Quincey Koziol2003-06-101-0/+119
| | | | | | | | | | | | | | Compatibility fix Description: The H5P[set|get]_fapl_mpiposix calls changed between v1.4.x and v1.5.x. Solution: Wrap them in the v1.4 backward compatibility #ifdefs and update tests, etc. Platforms tested: FreeBSD 4.8 (sleipnir) w/paralle & v1.4 compatibility h5committest pointless
* [svn-r6810] Purpose:Bill Wendling2003-05-061-2/+2
| | | | | | | | | | | | | | Update Description: Some of the TRACE macros were updated to reflect a new parameter. Platforms tested: Linux Solaris w/ zlib Irix w/ zlib Misc. update:
* [svn-r6807] Purpose:Bill Wendling2003-05-061-7/+6
| | | | | | | | | | | | | | | Change Description: Instead of using the "USE_GPFS" macro, use the "H5_HAVE_GPFS" macro which is defined during configuration and then use the new parameter to the H5P{get,set}_fapl_mpiposix functions to control if GPFS is enabled or not. Platforms tested: Modi4 (only affects the parallel stuff, so no need for full testing). Misc. update:
* [svn-r6803] Purpose:Quincey Koziol2003-05-061-7/+4
| | | | | | | | | | | Code cleanup. Description: Cleaned up a few debugging printfs. Platforms tested: FreeBSD 4.8 (sleipnir) Triple check not needed.
* [svn-r6795] Purpose:Bill Wendling2003-05-051-25/+52
| | | | | | | | | | | | | | | | Feature Add Description: Added knob so that the programmer can enable or disable GPFS hints during runtime instead of having it only enabled at configure/compile time. Some of the public APIs were changed to add an extra parameter for this option... Platforms tested: Blue (LLNL). It only affects the MPI/POSIX driver, so no need to test it on non-GPFS platforms. Misc. update:
* [svn-r6767] Albert Cheng2003-04-281-16/+0
| | | | | | | | | | | | | | | Purpose: Code cleanup Description: Removed debug statement bracketed by H5FDmpiposix_DEBUG or alike. They were added in by mistakes. Platforms tested: Did not h5committested but tested in Copper since there changes are limited in parallel codes. Misc. update:
* [svn-r6754] Purpose:Albert Cheng2003-04-251-29/+160
| | | | | | | | | | | | | | | | | Feature Description: Added the feature to store and return a duplicate of Communicator in the access of property list and file operations. (no duplicate for INFO object because MPIPOSIX driver does not process INFO object. Platforms tested: Did not h5committested because these are all MPI code and well protected by HAVE_PARALLEL. Tested in eirene and modi4, both parallel mode. Misc. update:
* [svn-r6501] Purpose:Bill Wendling2003-03-191-1/+3
| | | | | | | | | | | | | | New Feature Description: Added support for the lock and unlock function calls for file drivers. Only FPHDF5 uses this feature. All of these drivers don't define lock or unlock methods. Platforms tested: Linux, Modi4, Sol Misc. update:
* [svn-r6468] Purpose:Quincey Koziol2003-03-061-1/+1
| | | | | | | | | | | | | | Potential bug fix. Description: The code to rotate the metadata writing process may not be compiled correctly in all cases. Solution: Change from using "++mpi_round" to "mpi_round+1" Platforms tested: Eyeballed...
* [svn-r6398] Purpose:Quincey Koziol2003-02-121-1/+1
| | | | | | | | | | Code cleanup Description: Clean up some compiler warnings Platforms tested: FreeBSD 4.7 (sleipnir)
* [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-r6266] Purpose:Quincey Koziol2003-01-101-18/+18
| | | | | | | | | | | | 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-r6252] Purpose:Quincey Koziol2003-01-091-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
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