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* [svn-r18704] Description:Quincey Koziol2010-05-051-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | Bring r18702 from trunk to 1.8 branch: Bring r18672 from metadata journaling "merging" branch to trunk: Mostly changes to move to only using one 'user data' parameter for calls to H5AC_protect(), along with some minor reformatting code cleanups. 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 production 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-r18566] Description:Quincey Koziol2010-04-151-12/+13
| | | | | | | | | Bring r18564 & r18565 from trunk to 1.8 branch: clean up compiler warnings and whitespace issues. Tested on: Mac OS X/32 10.6.3 (amazon) (too minor to require h5committest)
* [svn-r16566] Description:Quincey Koziol2009-03-111-1/+1
| | | | | | | | Bring r16560 back from trunk. Tested on: Mac OS X/32 10.5.6 (amazon) debug & production (Following up with tests on more platforms)
* [svn-r15863] Description:Quincey Koziol2008-10-141-0/+1
| | | | | | | | | | | | | | | | | | | | | Bring r15861 back from trunk to 1.8 release branch. 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-r15801] Description:Quincey Koziol2008-10-071-41/+75
| | | | | | | | | | | | | | | | | | | | | | | Bring r15800 back from trunk: - File free space branch changes through r15794 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-r15629] Description:Quincey Koziol2008-09-161-21/+21
| | | | | | | | | | | | | Remove trailing whitespace from C/C++ source files, with the following script: foreach f (*.[ch] *.cpp) sed 's/[[:blank:]]*$//' $f > sed.out && mv sed.out $f end Tested on: Mac OS X/32 10.5.5 (amazon) No need for h5committest, just whitespace changes...
* [svn-r15513] Description:Quincey Koziol2008-08-211-9/+9
| | | | | | | | | | Bring back r15510 & r15512 from trunk: Fix compiler warnings and formatting. Tested on: Mac OS X/32 10.5.4 (amazon) More tests upcoming
* [svn-r15486] 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-r14861] Description:Quincey Koziol2008-04-241-127/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Bring revision 14860 back to 1.8 branch, change log for rev 14860 is: Omnibus raw data I/O revisions, with wide-ranging changes and refactoring, in order to prepare for implementing "fast append" feature. These changes remove the majority of the code duplication for raw data I/O which has crept in over the last ten years and introduces a more object- oriented design for operating on different types of dataset storage. Description: Omnibus raw data I/O revisions, with wide-ranging changes and refactoring, in order to prepare for implementing "fast append" feature. These changes remove the majority of the code duplication for raw data I/O which has crept in over the last ten years and introduces a more object- oriented design for operating on different types of dataset storage. Chunked storage no longer has it's own I/O routines, it is now handled as either contiguous (if chunk is not pulled into the cache) or compact (if the chunk is cached in memory). No bug or feature changes, at least intentionally... :-) Tested on: Mac OS X/32 10.5.2 (amazon) w/production
* [svn-r14306] Description:Quincey Koziol2007-11-291-51/+44
| | | | | | | | Add call to reset cached chunk info after initialization of chunk data storage. Tested on: Linux/64 2.4(smirom) w/parallel
* [svn-r13829] Some systems (only SGI Altix ProPack 4 discovered so far) ↵Raymond Lu2007-06-021-2/+14
| | | | | | | | | | | | doesn't return correct file size from MPI_File_get_size. Bypass this problem by replacing it with stat. Add an option --disable-mpi-size in configure to indicate this function doesn't work properly. Add a test in testpar/t_mpi.c, too. If it returns wrong file size, print out a warning. Tested on kagiso (parallel) because already tested the same change to v1.6 on several platforms (kagiso, cobalt, copper, and sol).
* [svn-r13475] There's a configure issue linking szip's shared libraries when ↵Mike McGreevy2007-03-081-0/+2
| | | | | | | | | | | | running on kagiso. The static szip libraries are working as intended, but when shared szip libraries are present and intended for use they cannot be opened. A check has been implemented to test if shared szip libraries are functional on current platform. If they are not, and the user is trying to use them, szip is now disbaled and the user is informed. This issue occurs on kagiso, and the resolution was tested on kagiso.
* [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 Laird2006-12-181-6/+6
| | | | | | | | | 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-r12553] This check-in includes the following part of parallel ↵MuQun Yang2006-08-091-20/+127
| | | | | | | | | | | | | | | optimization codes: 1. Provide another option for users to do independent IO with MPI file setview(collectively) 2. With the request of collective IO from users, using Independent IO with MPI file setview if we find collective IO is not good for the applications for IO per chunk(multi-chunk IO) case. Previously we used pure independent IO and that actually performed small IO(IO each row) for this case. The recent performance study suggested the independent IO with file setview can acheieve significantly better performance than collective IO when not many processes participate in the IO. 3. For applications that explicitly choose to do collective IO per chunk case, the library won't do any optimization(gather/broadcast) operations. The library simply passes the collective IO request to MPI-IO. Tested at copper, kagiso, heping, mir and tungsten(cmpi and mpich) Kagiso is using LAM, t_mpi test was broken even. The cchunk10 test failed at heping and mir. I suspected it was an MPICH problem. Will investigate later. Everything passed at copper. at tungsten: the old cmpi bug(failed at esetw) is still there. Other tests passed. Some sequential fheap tests failed at kagiso.
* [svn-r12440] Purpose:Quincey Koziol2006-06-271-18/+18
| | | | | | | | | | | 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-r12133] Purpose:Quincey Koziol2006-03-221-2/+2
| | | | | | | | | | | Code cleanup Description: Update a couple of files that bin/reconfigure rearranged for me... :-) Platforms tested: FreeBSD 4.11 (sleipnir) Too minor to require h5committest
* [svn-r12090] Purpose:MuQun Yang2006-03-141-0/+146
| | | | | | | | | | | | | | | | | | | New APIs to add for collective chunk IO Description: Three new APIs H5Pset_dxpl_mpio_chunk_opt_ratio H5Pset_dxpl_mpio_chunk_opt_num H5Pset_dxpl_mpio_chunk_opt for optional optimization choices from users. Solution: Haven't added tests yet, won't affect other parts of the library. Will add tests after urgent investigations of memory leaking problems from NASA Aura team. Platforms tested: heping: both parallel and sequential shanti Misc. update:
* [svn-r11470] Purpose:John Mainzer2005-09-271-10/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r11245] Purpose:Quincey Koziol2005-08-131-27/+27
| | | | | | | | | | | | | | | | | | | | 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-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-r8981] Purpose:Quincey Koziol2004-08-021-0/+1
| | | | | | | | | | | | | Code cleanup Description: Various minor tweaks to clean code up and bring it into closer syncronization with the release branch. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel h5committested IRIX64 6.5 (modi4)
* [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-r8383] Purpose:Quincey Koziol2004-04-181-1/+1
| | | | | | | | | | | | | 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-r8272] Purpose:Albert Cheng2004-03-231-2/+1
| | | | | | | | | | | | | | | | bug fix. Description: H5FD_mpio_init was calling the public API version of H5Iget_type() which would clear the error stack, thus cleared away error messages prematurely. Solution: Changed it to call the private version of H5I_get_type() which does not clear the error stack. Platforms tested: o2 (SGI) parallel.
* [svn-r8144] Purpose:Quincey Koziol2004-02-021-64/+18
| | | | | | | | | | | | | | | | | | | | | | | | Bug fix. Description: Revert the optimization to the MPI-I/O VFD from earlier this week that eliminated calling MPI_File_set_size() when a file was truncated. This doesn't work because of the way we track the 'eoa' (end of allocated space) in the file: we just advance the eoa value when space is allocated in the file and we don't zero out the space in the file. This causes a problem where we assume that all "newly allocated" space in the file contains zero bytes, but if we don't call MPI_File_set_size(), the file can contain the previous data (if the file previously existed) and not zeros. Unfortunately, because we allow independent raw data parallel I/O, there is no way to address this issue. :-( Solution: Revert to previous method of retrieving the file's size, etc. from before the optimization. Platforms tested: FreeBSD 4.9 (sleipnir) w/parallel too minor to require h5committest.
* [svn-r8140] Purpose:Quincey Koziol2004-02-011-1/+1
| | | | | | | | | | | | Bug fix Description: Move assertion to allow closing non-HDF5 files with the MPI-I/O VFD to work correctly again. Platforms tested: FreeBSD 4.9 (sleipnir) 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 Koziol2004-01-311-566/+176
| | | | | | | | | | | | | | | | | 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-r8038] Purpose:Quincey Koziol2004-01-081-2/+2
| | | | | | | | | | | | | | | | | | | | 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-r7993] Purpose:Quincey Koziol2003-12-291-5/+13
| | | | | | | | | | | | 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-r7978] Purpose:Albert Cheng2003-12-251-127/+61
| | | | | | | | | | | | | | | | | | | | | | | | Bug fix Description: MPIO driver did not detect partial read or write. It assumed if read completed, all bytes requested are read. Therefore, if a dataset was not completely written yet, the unread part will not be filled with default fill value. Solution: Added the MPI_Get_elements call to find exactly how many bytes are read (or written). For read case, if not enough is read, the rest is padded with zeros. For write case, it is an error if not able to write them all in first attempt. (It is not always possible to repeat write for MPIO since file-view may be changed, collective would hang, etc. So, we do just one attempt.) Platforms tested: eirene (pp). Should work for other platforms since these have been tested in v1.6. Misc. update:
* [svn-r7917] Purpose:Quincey Koziol2003-12-061-2/+2
| | | | | | | | | | | | | | | | | | | Code cleanup Description: Clean up compiler warnings, especially the 'FUNC' variable not used which comes out in production mode. Solution: Had to add a new FUNC_ENTER_NOAPI_NOINIT_NOFUNC macro for those non-API functions which don't need the 'FUNC' variable defined. (This will be _so_ much easier when C99 is standard on all our supposed platforms, since it has a __FUNC__ macro... ) Platforms tested: FreeBSD 4.9 (sleipnir) too minor for h5committest (although there were lots of files changed, the change was minor in each one)
* [svn-r7860] Purpose:Quincey Koziol2003-11-201-0/+21
| | | | | | | | | | | | | | | | | 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-r7789] Purpose:Quincey Koziol2003-10-291-51/+20
| | | | | | | | | | | | | | | Bug fix & code cleanups Description: Change our use of MPI derived datatypes to not create datatypes with "0-sized" lengths, which causes the LANL Q machine to hang. Also, get rid of "prefer MPI derived datatypes" environment variable since it has no advantage. Platforms tested: FreeBSD 4.9 (sleipnir) w & w/o parallel h5committest
* [svn-r7767] Purpose:Quincey Koziol2003-10-281-36/+11
| | | | | | | | | | | | | Code cleanup Description: Untwist the last few sections of code before starting on fixing the problems with reading off the end of the file in earnest. Platforms tested: FreeBSD 4.9 (sleipnir) FreeBSD 4.9 (sleipnir) w/parallel h5committest not necessary - parallel only changes
* [svn-r7765] Purpose:Quincey Koziol2003-10-281-78/+99
| | | | | | | | | | | | | 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-r7754] Purpose:Quincey Koziol2003-10-271-28/+34
| | | | | | | | | | | | | Code cleanup Description: Straighten out more goofiness in the MPI code dealing with collective I/O transfers - mostly make certain that a view is set if-and-only-if collective I/O is occurring on raw data (and vice versa for views and independent I/O) Platforms tested: FreeBSD 4.9 (sleipnir) w/parallel & FPHDF5 too minor to repquire h5committest
* [svn-r7480] Purpose:Quincey Koziol2003-09-161-13/+13
| | | | | | | | | | | | | | | | | Bug fix Description: The MPI_File_set_size() routine on ASCI Red is not able to extend files so that they are larger than 2GB. Solution: Add an extra macro which controls whether MPI_File_set_size() can handle >2GB offsets or if our "older" way of reading a byte, then writing a byte at the appropriate offset should be used. Platforms tested: FreeBSD 4.9 (sleipnir) h5committest
* [svn-r7393] Purpose:Quincey Koziol2003-08-231-153/+155
| | | | | | | | | | | Code cleanup Description: De-linted more code Platforms tested: FreeBSD 4.8 (sleipnir) w/parallel too minor to require h5committest
* [svn-r7122] Purpose:Quincey Koziol2003-06-301-6/+2
| | | | | | | | | | | | | 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-r6843] Purpose:Quincey Koziol2003-05-091-5/+4
| | | | | | | | | | | | Code cleanup Description: Clean up warnings exposed by compiling on O2K. Also, revert some of Bill and my changes to the H5S_mpi_opt_types_g, etc. and settle them back into their original location. Platforms tested: h5committested.
* [svn-r6769] Purpose:Albert Cheng2003-04-281-18/+21
| | | | | | | | | | | | | | | | | | | | Minor improvement Description: Moved the H5FD_mpio_Debug initialization to H5FD_mpio_init() so that it is done only once instead of every file open. Fixed blocked out patch that checks on INFO object so that H5FD_mpio_Debug can be set via the INFO object. (All these had been done to v1.4, now folded them int v1.5) Platforms tested: Did not h5committest since this is purely parallel code. The changes were made in an isolated copy in Copper. Tested in Copper parallel. Misc. update:
* [svn-r6753] Purpose:Albert Cheng2003-04-251-5/+11
| | | | | | | | | | | | | | | | | | | | Code cleanup Description: Replaced the comm/info freeing with H5FD_mpio_comm_info_free to make it cleaner and consistent. Replaced couple FUNC_LEAVE_NOAPI(SUCCEED) with FUNC_LEAVE_NOAPI(ret_value). These were bugs since it was possible errors may occur at FUNC_ENTER...() time and this hardcoding would not report those errors. Documented some modification history. 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-r6728] Purpose:Albert Cheng2003-04-221-3/+5
| | | | | | | | | | | | | | | | Silly bug fix. Description: Forgot to put the comm/info duplication code in. Solution: Put them back in. Platforms tested: Did not run h5committest since the changes are all in the MPIO driver code. Tested on eirene and Modi4, both parallel modes. Misc. update:
* [svn-r6708] Purpose:Albert Cheng2003-04-181-43/+319
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug fixes/API changes Description: Previously, the Communicator and Info object arguments supplied to H5Pset_fapl_mpio() are stored in the property with its handle values. This meant changes to the communicator or the Info object after calling H5Pset_fapl_mpio would affect the how the property list function. This was also the case when H5Fopen/create operated. They just stored the handle value. This is not according to the MPI-2 defined behavior of how Info objects should be handled. (MPI-2 defines Info objects must be parsed when called.) The old design was trying to avoid numerous duplicates of the same information (e.g., every property object holds one version, every file opened holds another version, when all of them are referring to the same original version.) Nevertheless it is safer to implement it according to MPI-2 definition. Futhermore, the library often needs to do message passing using the supplied communicator. Using the same communicator as the application version may result in some messages mix up. Solution: H5Pset_fapl_mpio now stores a duplicate of each of the communicator and Info object. H5Pget_fapl_mpio returns a duplicate of its stored communicator and Info object. It is now the responsibility of the applications to free those objects when done. H5Fopen/create also stores a duplicate of the communicator and Info object supplied by the File Access Property list. H5Fclose frees those duplicates. There are a few more internal VFL call back functions that they follow this "make duplicates" requirement. Platforms tested: "h5committested". What other platforms/configurations were tested? Eirene (mpicc), sol(mpicc), copper(parallel) 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...
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