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* [svn-r8782] Purpose:Quincey Koziol2004-07-011-4/+4
| | | | | | | | | | | 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-r8732] Purpose:Quincey Koziol2004-06-231-2/+1
| | | | | | | | | | | | Code cleanup Description: Reduce compiler warnings on SGI IRIX Platforms tested: FreeBSD 4.10 (sleipnir) SGI IRIX6 (Cheryl's machine) Too minor to require full h5committest
* [svn-r8731] Purpose:Quincey Koziol2004-06-231-71/+37
| | | | | | | | | | | | | | | 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-r8690] Purpose:Quincey Koziol2004-06-151-1/+16
| | | | | | | | | | | | Code optimization Description: Be smarter about copying hyperslab selection data and avoid memcpy() calls. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8677] Purpose:Quincey Koziol2004-06-141-59/+56
| | | | | | | | | | | | | | | | | | | Code cleanup & optimization Description: Remove old structures that used a union to store information about the dataspace extent and just store the information directly in the dataspace extent itself. Remove ifdef'd references to permutation ordering in dataspaces. We'll definitely need more than this code if/when we implement this feature. Change allocation of dataspace information from calloc() to malloc(). Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8673] Purpose:Quincey Koziol2004-06-131-202/+247
| | | | | | | | | | | | | | | | | | Code optimization Description: Revised dataspace selections to use a more "object oriented" mechanism to set the function pointers for each selection and selection iterator. This reduces the amount and number of times that dataspace selection info has to be copied. Additionally, change hyperslab selection information to be dynamically allocated instead of an inline struct. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8544] Purpose:Quincey Koziol2004-05-201-47/+9
| | | | | | | | | | | | | | Code optimization Description: Expand the use of macros to inline trivial function pointer lookup and calls to reduce the overall number of functions invoked during normal operation of the library. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel Too minor to require h5committest
* [svn-r8520] Purpose:Quincey Koziol2004-05-131-16/+13
| | | | | | | | | | | | Code optimization Description: Don't make a separate allocation for the selection offset - incorporate it into the selection structure as a fixed size array. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel
* [svn-r8513] Purpose:Quincey Koziol2004-05-131-28/+108
| | | | | | | | | | | | Code optimization Description: Defer creating the span trees for hyperslab selections until they are actually needed (which may be never, in certain circumstances). Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel
* [svn-r8496] Purpose:Quincey Koziol2004-05-081-3/+14
| | | | | | | | | | | | | Code optimization Description: Further reduce the number of copies we make of a hyperslab selection for chunked I/O, especially when we are only going to throw the old selection away for a new one. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel
* [svn-r8460] Purpose:Quincey Koziol2004-05-011-21/+19
| | | | | | | | | | | | | | | Code optimization Description: Move the element size for the selection into the selection iterator instead of always passing it as a parameter. Also, eleminate another 64-bit multiply for "all" selections. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8457] Purpose:Quincey Koziol2004-05-011-35/+31
| | | | | | | | | | | | | Code optimization Description: Stop straddling the line and always use elements instead of bytes to determine how how I/O to perform on a selection. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8454] Purpose:Quincey Koziol2004-05-011-142/+92
| | | | | | | | | | | | Code optimization Description: Eliminate more redundant 64-bit multiplies Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8452] Purpose:Quincey Koziol2004-05-011-10/+6
| | | | | | | | | | | | Code optimization Description: Eliminate frivolous 64-bit multiply. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8450] Purpose:Quincey Koziol2004-05-011-4/+3
| | | | | | | | | | | | Code optimization Description: Remove extraneous memcpy() Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8408] Purpose:Quincey Koziol2004-04-221-247/+109
| | | | | | | | | | | | | | Code optimization Description: Instead of dynamicly allocating various arrays for various pieces of information about a selection or selection iterator, just use fixed size array of size H5S_MAX_RANK (as the rest of the library does). Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) h5committest
* [svn-r8374] Purpose:Quincey Koziol2004-04-171-54/+46
| | | | | | | | | | | | | | Code optimization Description: Instead of re-initializing the default stride & block arrays to have values of '1' in each position each time we perform a hyperslab selection, create static constant arrays with '1's in them. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8372] Purpose:Quincey Koziol2004-04-171-26/+63
| | | | | | | | | | | | Code optimization Description: Don't copy hyperslab span information as much. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8339] Purpose:Quincey Koziol2004-04-101-8/+8
| | | | | | | | | | | | | Code optimization Description: Remove a memcpy() from a commonly called routine and replace a multiplication with a series of additions. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r8337] Purpose:Quincey Koziol2004-04-101-13/+17
| | | | | | | | | | | | Code optimization Description: Avoid another extraneous dataspace copy. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel too minor to require h5committest
* [svn-r8335] Purpose:Quincey Koziol2004-04-101-0/+122
| | | | | | | | | | | | | | | Code optimization Description: Change algorithm to directly use coordinates describing a chunk's position in a dataspace instead of creating a dataspace with the chunk's position selected. This reduces the number of copies of dataspaces we need to keep around. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.9 (sleipnir) w/parallel too minor to require h5committest
* [svn-r8324] Purpose:Quincey Koziol2004-04-081-1/+1
| | | | Correct typo in comment
* [svn-r8312] Purpose:Quincey Koziol2004-04-061-12/+2
| | | | | | | | | | | | Code optimization Description: Eliminate unnecessary allocation and point at existing data structure instead. Platforms tested: Solaris 2.7 (arabica) too minor to require h5committest
* [svn-r8309] Purpose:Quincey Koziol2004-04-061-12/+2
| | | | | | | | | | | | Code optimization Description: Fix H5S_select_hyperslab to use arrays on the stack instead of dynamically allocating them each time. Platforms tested: Solaris 2.7 (arabica) too small to require h5committest
* [svn-r8305] Purpose:Quincey Koziol2004-04-061-11/+8
| | | | | | | | | | | | Code optimization Description: Minor tweaks on the optimized offset/length sequence generator to improve performance by reducing the number of 64-bit multiplies and calls to memcpy(). Platforms tested: Solaris 2.7 (arabica) too minor to require h5committest
* [svn-r8276] *** empty log message ***Raymond Lu2004-03-241-0/+4
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* [svn-r8000] Purpose:Quincey Koziol2003-12-311-15/+60
| | | | | | | | | | | | | Bug fix Description: Fixed bug in hyperslab iteration where certain combinations of flattened and non-flattened dimensions would cause incorrect locations to be iterated over. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to require h5committest
* [svn-r7943] Purpose:Quincey Koziol2003-12-131-7/+65
| | | | | | | | | | | | | | | Bug fix. Description: Using a selection offset with hyperslab selections in chunked datasets was getting into an infinite loop and hanging the application. Solution: Apply the selection offset to the hyperslab selection properly. Platforms tested: FreeBSD 4.9 (sleipnir) w & w/o parallel h5committest
* [svn-r7917] Purpose:Quincey Koziol2003-12-061-51/+51
| | | | | | | | | | | | | | | | | | | 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-r7826] Purpose:Quincey Koziol2003-11-081-1/+2
| | | | | | | | | | | Code cleanup Description: Cleanup compiler warning by breaking apart the cast checking. Platforms tested: FreeBSD 4.9 (sleipnir) too minor to need h5committest
* [svn-r7732] Purpose:Quincey Koziol2003-10-251-30/+45
| | | | | | | | | | | | | | | | | Bug fix Description: Single hyperslab selections (which were set with only one call to H5Sselect_hyperslab) that had dimensions that could be "flattened" but were interspersed with dimensions that could not be flattened were not correctly handled, causing core dumps. Solution: Re-work "flattening" code to handle this case properly. Platforms tested: FreeBSD 4.9 (sleipnir) w/parallel h5committest
* [svn-r7663] Purpose:Quincey Koziol2003-10-181-106/+40
| | | | | | | | | | | | Code cleanup Description: Re-wrote duff's device with some macro substitution to make algorithm more obvious. Platforms tested: FreeBSD 4.9 (sleipnir) too small to require h5committest
* [svn-r7116] Purpose:Quincey Koziol2003-06-271-3/+4
| | | | | | | | | | | | Update code Description: Move "PABLO_MASK" definition above header file inclusion to avoid problems with inline functions in header files. Platforms tested: FreeBSD 4.8 (sleipnir) h5committest
* [svn-r6969] Purpose:Quincey Koziol2003-06-051-3/+3
| | | | | | | | | | | Code cleanup Description: Correct a couple of mistakes in error macros. Platforms tested: FreeBSD 4.8 (sleipnir) triple check not necesssary.
* [svn-r6961] Purpose:Quincey Koziol2003-06-041-34/+73
| | | | | | | | | | | | | | | | Bug fix Description: An earlier checkin changed some of the assumptions about single block hyperslabs, causing them to fail in odd ways. Solution: Fix errors with single block hyperslabs by keying off of count==1 instead of stride==1. Platforms tested: FreeBSD 4.8 (sleipnir) w/parallel h5committested
* [svn-r6957] Purpose:Quincey Koziol2003-06-041-44/+557
| | | | | | | | | | | | | | | | Code cleanup & performance improvements Description: Optimize hyperslabs that are built to detect situations where "regular" hyperslabs can be recovered from span tree descriptions. Also, improve "same shape" routine to correctly work with all the different combinations of selections. Platforms tested: FreeBSD 4.8 (sleipnir) w/C++ FreeBSD 4.8 (sleipnir) w/parallel h5committested
* [svn-r6942] Purpose:Quincey Koziol2003-05-311-9/+443
| | | | | | | | | | | | | | | | | Performance improment Description: Speed up chunked dataset I/O. This breaks down into several areas: - Compute chunk selections in the file by using hyperslab operations instead of iterating over each element in the selection. - If the file and memory selections are the same shape, use the file chunk selections to compute the memory chunk selections. This required several additional dataspace, dataspace selection and hyperslab routines. Platforms tested: h5committestted (although Fortran tests failed for some reason)
* [svn-r6920] Purpose:Quincey Koziol2003-05-281-3/+3
| | | | | | | | | | | | | | | | Bug fix Description: (void *)~((size_t)NULL) on the Cray is a different value than (foo *)~((size_t)NULL) and causes some of the hyperslab algorithms to fail. Solution: Change all the 'void *' forms to 'foo *' forms. Platforms tested: Cray SV1 h5committest not needed.
* [svn-r6839] Purpose: feature protectionRaymond Lu2003-05-081-0/+2
| | | | | | | | | Description: H5Sselect_hyperslab and H5Sselect_elements didn't check scalar dataspaces. Solution: put error detection in those functions. Platforms tested: eirene(simple change).
* [svn-r6837] Purpose:Quincey Koziol2003-05-081-1/+5
| | | | | | | | | | | | | | | 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-r6830] Purpose:Quincey Koziol2003-05-081-1/+1
| | | | | | | | | | | | | | | | Bug fix Description: Dataspace selections created for individual chunks during chunk dataset I/O were leaking memory. Solution: Properly set reference count on selection, so they get free'd when the dataspace is closed. Platforms tested: FreeBSD 4.8 (sleipnir) Triple check not needed.
* [svn-r6825] Purpose:Quincey Koziol2003-05-071-267/+848
| | | | | | | | | | | | | | | | | | | | | | | | | New feature/enhancement Description: Chunked datasets are handled poorly in several circumstances involving certain selections and chunks that are too large for the chunk cache and/or chunks with filters, causing the chunk to be read from disk multiple times. Solution: Rearrange raw data I/O infrastructure to handle chunked datasets in a much more friendly way by creating a selection in memory and on disk for each chunk in a chunked dataset and performing all of the I/O on that chunk at one time. There are still some scalability (the current code attempts to create a selection for all the chunks in the dataset, instead of just the chunks that are accessed, requiring portions of the istore.c and fillval.c tests to be commented out) and performance issues, but checking this in will allow the changes to be tested by a much wider audience while I address the remaining issues. Platforms tested: h5committested, FreeBSD 4.8 (sleipnir) serial & parallel, Linux 2.4 (eirene)
* [svn-r6546] Purpose:Bill Wendling2003-03-311-3/+14
| | | | | | | | | | | | Update Description: Updated copyright statement in files which hadn't been updated yet. Platforms tested: Linux (Only comment change) Misc. update:
* [svn-r6301] Purpose:Quincey Koziol2003-01-181-5/+6
| | | | | | | | | | | 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-r6296] Purpose:Quincey Koziol2003-01-171-7/+13
| | | | | | | | | | Code cleanup Description: Reduce warnings on Windows Platforms tested: FreeBSD 4.7 (sleipnir)
* [svn-r6266] Purpose:Quincey Koziol2003-01-101-58/+58
| | | | | | | | | | | | 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 Koziol2003-01-091-26/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r6047] Purpose:Quincey Koziol2002-11-011-0/+2
| | | | | | | | | | | | | | | | | Bug fix & code cleanup Description: Hyperslab code for collapsing dimensions was incorrectly collapsing selections inappropriately when the fastest changing dimension couldn't be collapsed. Also add some more assertions which will make similar bugs easier to find. Solution: Break out of loop earlier. Platforms tested: modi4 (parallel), too small to triple check.
* [svn-r5921] Purpose:Quincey Koziol2002-09-111-5/+5
| | | | | | | | | | | | | | | | | Code cleanup Description: Two of the parameters to H5S_select_hyperslab are defined as "const hsize_t foo[]", and then "foo" is assigned another value, which is technically against the C standard and is now causing problems for a user with a more strict compiler. Solution: Changed "const hsize_t foo[]" to "const hsize_t *foo". Platforms tested: FreeBSD 4.6 (sleipnir) - not a significant enough change to worry about multi-platform testing.
* [svn-r5867] Purpose:Quincey Koziol2002-08-091-7/+30
| | | | | | | | | | | | | Code cleanup Description: Changed the last HRETURN* statements in the FUNC_ENTER macros into HGOTO* macros, which reduces the size of the library binary in certain configurations by another 10% Platforms tested: FreeBSD 4.6 (sleipnir) serial & parallel, IRIX64 6.5 (modi4) serial & parallel
generated by cgit v0.12 at 2024-11-19 08:26:10 (GMT)