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* [svn-r9937] Purpose:Robert E. McGrath2005-02-041-1/+2
| | | | | | | | | | | | | | | Bug Description: Assertion failure Solution: don't call decrement when the object doesn't exist. Platforms tested: shanti,verbena 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-r9850] Purpose:John Mainzer2005-01-201-13/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) Provide facilities in cache to allow us to avoid a potential cache consistency bug in the parallel case. 2) Clean up a off by one sanity checking bug. 3) Turn off execution of long running tests in debug mode. Description: 1) In the parallel case, all writes to metadata must be collective, but reads may not be. In pricipal, this allows us to different contents in different caches. This isn't a problem as long as the correct data is always on disk, but unless we can force certain writes immediately, that need not be the case. 2) & 3) should need no further explanation. Solution: 1) Add code allowing us to mark cache entries, and then force these entries to be flushed at a later time. Note that to actually avoid the bug, we will have to modify existing code to use these new features. 2) & 3) should need no further explanation. Platforms tested: heping (serial debug and production) committest (copper, sol, and heping). test failed on heping in the c++ portion of the build, but at Quincey's siggestion, I am proceeding with the checkin. Misc. update:
* [svn-r9727] Purpose:Quincey Koziol2004-12-291-22/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r9559] Purpose:Quincey Koziol2004-11-221-5/+9
| | | | | | | | | | | | | Code optimization Description: Switch a few more malloc/free pairs over to using internal free list code, to avoid abusing system memory allocator as badly. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Solaris 2.7 (arabica) Too minor to require h5committest
* [svn-r9459] Purpose:Quincey Koziol2004-10-261-1/+1
| | | | | | | | | | | | | Code cleanup Description: Clean up minor warnings and align with release branch. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel & FPH5 Solaris 2.7 (arabica) w/production mode Linux 2.4 (heping) w/C++ and FORTRAN
* [svn-r9342] Purpose:Quincey Koziol2004-09-301-2/+2
| | | | | | | | | | | | | | | | Bug fix/code cleanup Description: Clean up raw data I/O code to bundle the I/O parameters (dataset, DXPL ID, etc) into a single struct to pass around through the dataset I/O routines, since they are always passed together, until very near the bottom of the I/O stack. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel Solaris 2.7 (arabica) IRIX64 6.5 (modi4) h5committest
* [svn-r9183] Purpose: New featureRaymond Lu2004-09-011-3/+3
| | | | | | | | | | | | Description: Restore 6 old error API functions back to the library to be backward compatible with v1.6. They are H5Epush, H5Eprint, H5Ewalk, H5Eclear, H5Eset_auto, H5Eget_auto. These functions do not have error stack as parameter. Solution: Internally, these functions use default error stack. Platforms tested: h5committest and fuss. Misc. update: RELEASE.txt
* [svn-r8946] Purpose:Quincey Koziol2004-07-261-0/+3
| | | | | | | | | | | | | | | | | | Code cleanup, sorta Description: Added ifdef sections for "H5_USING_PURIFY" in various places in the code, which are designed to reduce the spurious "uninitialized memory read" warnings from purify which are actually OK. Note that this macro will have to be turned on by adding it to the CFLAGS for the build - I didn't think it was important enough to add a configure flag for. Also, the changes in H5HG.c optimize the walks through the objects in a heap to only look at the 'used' entries instead of all the 'allocated' entries. Platforms tested: Solaris 2.7 (arabica) w/purify Not tested by h5committest
* [svn-r8874] Purpose:Quincey Koziol2004-07-141-9/+5
| | | | | | | | | | | | | | | | | | | | Bug fix Description: Correct problems with "resurrecting" a dataset in a file. (This occurs when a dataset which is open gets unlinked from the group hierarchy (making it "dead" and marked for deletion in the file) and then is re-linked to the group hierarchy). Note that the current solution applies only to datasets, further work will fix this for groups and named datatypes also. Also, fix the "debug" routines to be a little more helpful in certain situations. Additionally, fix a locking bug in the symbol table node splitting routine which could be [one of] the cause[s] of the file corruption in flexible parallel operation. Platforms tested: FreeBSD 4.10 (sleipnir) w/parallel h5committested
* [svn-r8865] Purpose:Quincey Koziol2004-07-131-1/+2
| | | | | | | | | | | | | | | | | Code optimization Description: Re-work the insertion of a new child into an existing node, to exploit some speedups for adding the rightmost child, since this is a very common case when appending records to an unlimited size dataset. Also, hoist the checks for the tree's 'K' value into a field in the shared information about the tree, instead of re-calculating them all the time. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8853] Purpose:Quincey Koziol2004-07-101-32/+58
| | | | | | | | | | | | | | | | | | | | Code optimization Description: Refactor B-tree code to extract all common information for a B-tree into a shared structure that is pointed to by all the nodes in tree (instead of being included in each node). Also re-order B-tree node comparison checks for chunked datasets to check for >= the upper node first, since the comparison is a bit "heavy" and this check is more likely to succeed when you are adding records to the dataset. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest (also, recent h5dump commits have broken testing...)
* [svn-r8844] Purpose:Quincey Koziol2004-07-091-5/+41
| | | | | | | | | | | | | | | | | | Bug fix Description: The "shared" raw B-tree node can get freed before all the B-tree nodes had been flushed out to disk and released by the cache. Solution: Implement a simple reference counting wrapper for objects in the library and use it to hold the shared raw B-tree nodes so they aren't freed before all references to them in memory are released. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) IRIX64 6.5 (modei4)
* [svn-r8823] Purpose:Quincey Koziol2004-07-071-6/+109
| | | | | | | | | | | | | | | Code optimization Description: Since the raw B-tree nodes are the same size and only used when reading in or writing out a B-tree node, move raw B-tree node buffer from being per node to a single node that is shared among all B-tree nodes of a particular tree, freeing up a lot of space and eliminating lots of memory copies, etc. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8800] Purpose:Quincey Koziol2004-07-031-21/+17
| | | | | | | | | | | | | Code cleanup Description: Fix problems when compiling with C++ compiler. Also clean up some warnings with gcc 3.4.x Platforms tested: FreeBSD 4.10 (sleipnir) Too minor to require h5committest
* [svn-r8791] Purpose: Rewrote metadata cache (H5AC.c, etc.) to improve ↵John Mainzer2004-07-021-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r8731] Purpose:Quincey Koziol2004-06-231-22/+14
| | | | | | | | | | | | | | | 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-r8725] Purpose:Quincey Koziol2004-06-231-10/+1
| | | | | | | | | | | | Refactor bug fix Description: Make bug fix for detecting the type of a soft link more general by registering an "isa" function for soft links. Platforms tested: FreeBSD 4.10 (sleipnir) Too minor to require h5committest
* [svn-r8721] Purpose: Bug fix and test.Raymond Lu2004-06-221-1/+10
| | | | | | | | | | | | | Description: Function H5Gget_objtype_by_idx failed to handle soft link object. The library returned object type by calling H5G_get_type through H5B_iterate. But H5G_get_type only deals with objects with valid header address which soft link doesn't have. Solution: In H5G_node_type, make soft link a special case by checking if the object type is H5G_CACHED_SLINK. Also added a test of soft and hard links to titerate.c Platforms tested: h5committest and RH 8(fuss).
* [svn-r8495] Purpose:Quincey Koziol2004-05-081-9/+9
| | | | | | | | | | | | | | Bug fixes Description: Updated dependencies Fixed error with C++ compiler builds of main library Added H5Pset_data_transform to MPE info Platforms tested: FreeBSD 4.9 (sleipnir)
* [svn-r8490] Purpose:Quincey Koziol2004-05-071-9/+25
| | | | | | | | | | | | Code cleanup Description: Reset pointers to heap info and actual heap after we have unlocked them, to avoid accidentally referencing them after that point. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8301] Purpose:Quincey Koziol2004-04-061-6/+6
| | | | | | | | | | | | | Code optimization Description: Move handling for free list arrays that have no maximum size to separate set of routines and optimize computations for free list arrays with maximum size to avoid re-computing sizes all the time. Platforms tested: h5committest Solaris 2.7 (arabica)
* [svn-r8287] Purpose:Quincey Koziol2004-03-301-1/+1
| | | | | | | | | | | | | | Bug fix/code cleanup Description: Copy Robb's feature in SSlib that checks that the name of the function used in the FUNC_ENTER macro is actually the name of function. Fixed a bunch of typos & copy-n-pasto's for functions with incorrect names. Platforms tested: FreeBSD 4.9 (sleipnir) w/parallel too minor to require h5committest
* [svn-r7917] Purpose:Quincey Koziol2003-12-061-5/+5
| | | | | | | | | | | | | | | | | | | 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-r7498] Purpose:Quincey Koziol2003-09-191-3/+5
| | | | | | | | | | | Code cleanup Description: Clean up various warnings and parameter mis-matches, etc. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to need h5committest
* [svn-r7489] Purpose:Bill Wendling2003-09-181-52/+193
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update Description: A lot of modifications for the FPHDF5 stuff: H5AC.c H5ACprivate.h - Removed AC_find (it's replaced with AC_protect and AC_unprotect). Added flushing if it's an FPHDF5 driver and we're doing an AC_set or AC_unprotect with the dirty flag set. H5B.c - Split up the B_flush function into different functions since the one function was doing serialization which is better left as a separate entity. H5D.c - Removed some FPHDF5 code that was incorrect H5F.c - Split up the F_flush function so that it no longer allocates file space. Created new functions (F_init_superblock, F_read_superblock, and F_write_superblock) for greater modularity and so that the FPHDF5 non-captain processes can read the superblock after the captain process writes it. H5FD.c - Error message correction. H5FDfphdf5.c - Removed MPI barrier call that wasn't needed. H5FPclient.c H5FPserver.c - Modified so that if a process requests data that isn't exactly aligned, we can return it if we have the block that contains the requested address. H5G.c H5Gent.c H5Gnode.c H5HL.c H5HLpkg.h H5HLprivate.h H5Oefl.c - Removed the H5HL_peek function since it was doing a (now unsafe) holding of the information in the cache. Replaced with protect and unprotect calls. H5TB.c - Error fix. The TB_dless function wasn't working properly. H5Gstab.c - Format change. H5err.txt H5Edefin.h H5Einit.h H5Epubgen.h H5Eterm.h - Added new error code. Platforms tested: Modi4 (paralle, Fortran) Sol (Fortran) Linux (C++, Fortran) Copper (Parallel, Fortran) Misc. update:
* [svn-r7467] Purpose:Quincey Koziol2003-09-111-25/+16
| | | | | | | | | | | | | | Code cleanup Description: Patch up a few places where the metadata cache could ask for a read lock instead of a write lock and other minor code cleanups. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to need h5committest Misc. update:
* [svn-r7460] Purpose:Bill Wendling2003-09-101-9/+12
| | | | | | | | | | | | | | | Update Description: Added extra parameter to the H5AC_protect() function that indicates if the cache being asked for is going to be written to or just read from. Those AC_protect calls that were H5AC_find calls are now read-only. The rest are writes. Platforms tested: Linux (h5committest not needed due to size and small impact) Misc. update:
* [svn-r7456] Purpose:Bill Wendling2003-09-101-11/+36
| | | | | | | | | | | | | | | | | | | | | Removal of H5AC_find() Description: The H5AC_find() function is mostly redundant and with the new Flexible Parallel HDF5 stuff, we need to do locking on metadata returned from the H5AC_find() anyway. So, all of the locking stuff will be placed in the H5AC_{un}protect() functions. The H5AC_find() is no longer needed. Solution: Replaced all H5AC_finds with H5AC_protects and H5AC_unprotects. Platforms tested: Linux (Fortran & C++) Solaris (Fortran) Irix (Parallel & Fortran) Misc. update:
* [svn-r7446] Purpose:Quincey Koziol2003-09-061-1/+6
| | | | | | | | | | | | Code cleanup/bug fix Description: Move metadata cache calls around a bit so they protect the usage of the metadata better. Platforms tested: FreeBSD 4.9 (sleipnir) too small to need h5committest
* [svn-r7445] Purpose:Bill Wendling2003-09-041-2/+5
| | | | | | | | | | | | | | | | | | | | | Fix, of a sort Description: Some of the code would get an object from the cache via the H5AC_find() function and then modify the returned object. This behavior is incorrect as the pointer returned via the H5AC_find() function is supposed to be read only. Solution: Changed the H5AC_finds to H5AC_protect() instead and added the appropriate H5AC_unprotect() function. Platforms tested: (simulated h5committest by hand since it doesn't work for me) Linux (Fortran, C++) Solaris (Fortran) AIX (Fortran, C++) SGI (Parallel, Fortran)
* [svn-r7391] Purpose:Quincey Koziol2003-08-221-4/+3
| | | | | | | | | | | | | | | | Bug fix Description: H5Gget_num_objs, H5Gget_objname_by_idx and H5Gget_objtype_by_idx were only accepting a group ID, instead of a location ID, as our documentation for them stated. Solution: Allow them to accept a location ID. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r7369] Purpose:Quincey Koziol2003-08-151-3/+3
| | | | | | | | | | | | | | | | | Bug fix Description: The metadata cache 'destroy' callback routines need the file handle in order for certain callback routines (currently just the H5HG one) to perform extra cleanups. The recent change to call the 'destroy' callback from the 'clear' callback omitted this parameter. Solution: Add the file handle to the metadata cache 'clear' callbacks. Platforms tested: FreeBSD 4.8 (sleipnir) too small to need h5committest
* [svn-r7367] Purpose:Bill Wendling2003-08-151-3/+13
| | | | | | | | | | | | | | | | | | | Update Description: Added an extra flag to the clear functions that triggers a "destroy" of the object being cleared if necessary. This is a fix for the FPHDF5 stuff which had an object sticking around after it was cleared. (In FPHDF5, some processes are in charge of destroying the object, but all processes might actually allocate the object.) Platforms tested: AIX (Copper: Fortran & C++) Linux (Verbena: Fortran & C++) IRIX (Modi4: Parallel & Fortran) (Sol is down) Misc. update:
* [svn-r7297] Purpose:Quincey Koziol2003-08-081-3/+3
| | | | | | | | | | | | | | | | Code cleanup Description: Changed lines like: H5E_clear(H5E_get_my_stack()); to: H5E_clear(NULL); which performs the same operation. Platforms tested: h5committested
* [svn-r7265] *** empty log message ***Raymond Lu2003-07-261-3/+3
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* [svn-r7080] Purpose:Quincey Koziol2003-06-231-19/+19
| | | | | | | | | | | | | | | | | Bug fix (backward compatibility) Description: Changes we've made during development of the 1.5.x branch had broken the feature of allowing user's callbacks to H5Giterate to return a value through the library back to the application which called H5Giterate. Solution: Correctly pass along iterator callback return value and adjust internal library code to conform to this design. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r6878] Purpose:Quincey Koziol2003-05-151-12/+26
| | | | | | | | | | | Code cleanup Description: Limit the scope on more function prototypes/macros/typedefs. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest not necessary.
* [svn-r6655] Purpose:Quincey Koziol2003-04-141-100/+186
| | | | | | | | | | | | | | | | | New feature. Description: Added ability to release space used for storing symbol table entries and nodes when a group is deleted in a file. Platforms tested: FreeBSD 4.8 (sleipnir) w/C++ Linux 2.4 (burrwhite) w/FORTRAN Solaris 2.7 (arabica) w/FORTRAN IRIX64 6.5 (modi4) w/parallel & FORTRAN (h5committest not run due to my ongoing difficulties with C++ on burrwhite).
* [svn-r6546] Purpose:Bill Wendling2003-03-311-4/+14
| | | | | | | | | | | | Update Description: Updated copyright statement in files which hadn't been updated yet. Platforms tested: Linux (Only comment change) Misc. update:
* [svn-r6519] Purpose:Quincey Koziol2003-03-221-1/+4
| | | | | | | | | | | | | Bug fix/code cleanup/new feature Description: Fix h5debug to work correctly again, with all the changes over the past few months. Improved and cleaned up debugging output available in h5debug. Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6497] Purpose:Quincey Koziol2003-03-191-1/+1
| | | | | | | | | | | | | | | | | | | Finish code cleanup Description: Wrap up the conversion of H5F_flush's multiple boolean flags into a single bitfield of flags by pushing the flags down into the H5AC_flush and H5F_istore_flush routines. Also, changed the flags from H5_FLUSH_<foo> to H5F_FLUSH_<foo> to be more consistent with rest of library. And reverted the changes to H5FDflush and H5FD_flush routines. Platforms tested: FreeBSD 4.7 (sleipnir) Solaris 5.8 (sol) IRIX64 6.5 (modi4) w/parallel Misc. update:
* [svn-r6452] Purpose:Quincey Koziol2003-03-031-2/+44
| | | | | | | | | | Code cleanup Description: Add B-tree node debugging routine for symbol table nodes (i.e. groups) Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6411] Purpose:Quincey Koziol2003-02-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | 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-r6387] Purpose:Quincey Koziol2003-02-101-168/+204
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r6301] Purpose:Quincey Koziol2003-01-181-1/+1
| | | | | | | | | | | Code cleanup & bug fix Description: Cleanup another set of warnings on Windows and also fix mis-placed assertion that caused the daily tests to fail. Platforms tested: IRIX64 6.5 (modi4) w/-n32
* [svn-r6266] Purpose:Quincey Koziol2003-01-101-17/+17
| | | | | | | | | | | | 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 Koziol2003-01-091-102/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r6142] Purpose:Quincey Koziol2002-12-021-3/+3
| | | | | | | | | | Code cleanup Description: Clean up warnings with gcc 3.2.1 Platforms tested: FreeBSD 4.7 (sleipnir) w/C++, changes too small for triple check
* [svn-r6136] Raymond Lu2002-11-251-7/+154
| | | | | | | | | | | 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.
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