summaryrefslogtreecommitdiffstats
path: root/src/H5FDgass.c
Commit message (Collapse)AuthorAgeFilesLines
* [svn-r6266] Purpose:Quincey Koziol2003-01-101-12/+12
| | | | | | | | | | | | 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 Koziol2003-01-091-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-r5951] Raymond Lu2002-09-301-0/+34
| | | | | | | | | | | Purpose: New API functions Description: Added API functions to return pointer to low-level file handle (H5Fget_vfd_handle and H5FDget_vfd_handle) and related property list setting functions(H5Pset_family_offset and H5Pset_multi_type). Platforms tested: Linux 2.2(eirene), Solaris 2.7(arabica), IRIX64 6.5(modi4)
* [svn-r5871] Purpose:Quincey Koziol2002-08-121-3/+3
| | | | | | | | | | | | | | | | Code cleanup Description: Combined H5P_isa_class and H5I_object functionality into a new internal H5P API function: H5P_object_verify, which checks that a property list is the appropriate class and then returns the property list object associated with the property list ID. This reduces the source code by about 200 LOC and trims the library binary some more. Platforms tested: FreeBSD 4.6 (sleipnir)
* [svn-r5867] Purpose:Quincey Koziol2002-08-091-9/+28
| | | | | | | | | | | | | 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
* [svn-r5842] Purpose:Quincey Koziol2002-08-081-41/+56
| | | | | | | | | | | | | | | | Code cleanup Description: Change most (all?) HRETURN_ERROR macros to HGOTO_ERROR macros, along with HRETURN macros to HGOTO_DONE macros. This unifies the error return path from functions and reduces the size of the library by up to 10% on some platforms. Additionally, I improved a lot of the error cleanup code in many routines. Platforms tested: FreeBSD 4.6 (sleipnir) serial & parallel and IRIX64 6.5 (modi4) serial & parallel.
* [svn-r5536] Purpose:Quincey Koziol2002-06-051-0/+1
| | | | | | | | | | | | | | | | | New feature. Description: Added a "small data" block allocation mechanism to the library, similar to the mechanism used for allocating metadata currently. See the RFC for more details: http://hdf.ncsa.uiuc.edu/RFC/SmallData/SmallData.html This reduces the number of I/O operations which hit the disk for my test program from 19 to 15 (i.e. from 393 to 15, overall). Platforms tested: Solaris 2.7 (arabica) w/FORTRAN and FreeBSD 4.5 (sleipnir) w/C++
* [svn-r5471] Purpose:Quincey Koziol2002-05-291-17/+17
| | | | | | | | | | | | | | | | Code cleanup Description: Broke the FUNC_ENTER macro into several macros, with more specialized uses (which followup mail will describe). This was designed to move most/all of the checks which could be done at compile time to that point, instead of needlessly performing them (over & over :-) at run-time. This reduces the library's size (and thus staticly linked binaries) and has a minor speedup effect also. Platforms tested: IRIX64 6.5 (modi4) with parallel & FORTRAN enabled, and additional testing on FreeBSD and Solaris immediately after the checkin.
* [svn-r5436] Pedro Vicente Nunes2002-05-181-1/+0
| | | | | | | | | Purpose: code clean up Description: removed some debugging comments regading the code warrior port Platforms tested: w2000
* [svn-r5308] Purpose:Quincey Koziol2002-05-011-0/+1
| | | | | | Update API tracing information Platforms tested: Linux 2.2 (eirene)
* [svn-r5205] Purpose:Albert Cheng2002-04-191-5/+1
| | | | | | | | | | | | | | Code cleanup Description: Platform dependent code related to the struct stat and fstat calls polluted source codes. Hard to maintain. Solution: Platform dependent code are moved to H5private.h and then internal code can #include H5private.h. Repeat those macro definition for the stdio and multi drivers since they area examples for writing a virtual file driver. They must not use any internal code. Platforms tested: eirene (parallel), modi4 (serial including gass driver.)
* [svn-r5101] MuQun Yang2002-03-271-2/+6
| | | | | | | | | | | | | | | Purpose: fix a windows bug Description: 1. To create a >4GB file, fstati64 has to be used instead of fstat. change fstat to fstati64 for WIN32 macroes. Some discussions are going on the general issue on how to better handle with WIN32 or other similar platform. This check-in is just a reminder not to forget the windows bug. 2. erase a WIN32 macro(include winsock2.h) at h5detect.c. It is not a problem now. Solution: use fstati64 instead of fstat for win32. Platforms tested: windows2000(confirmed at linux machine eirene)
* [svn-r4696] Raymond Lu2001-12-111-0/+1
| | | | | | | | | | | | | | | | | Purpose: Modify H5Fclose behavior Description: The HDF5 actual file close behaves in several ways in terms of if there are still objects(dataset, group, datatype) opened in file. Solution: Added a new file access property, file close degree. It has four values, H5F_CLOSE_DEFAULT H5F_CLOSE_WEAK H5F_CLOSE_SEMI H5F_CLOSE_STRONG The way a file is closed is decided by these values. Platforms tested: IRIX64 6.5, SunOS 5.6, FreeBSD 4.4
* [svn-r4647] Purpose:Quincey Koziol2001-11-271-1/+1
| | | | | | | | | Bug fix Description: Changed return value from "FAIL" to "NULL" for error condition, which was caused the SGI machines testing the GASS drivers to fail over the weekend. Platforms tested: IRIX64 6.5 (modi4)
* [svn-r4620] Purpose:Quincey Koziol2001-11-201-12/+14
| | | | | | | | | Code cleanup Description: Get rid of IDs from internal function calls and some small cleanups from the old-stype => generic property list conversion. Platforms tested: FreeBSD 4.4 (hawkwind)
* [svn-r4589] Purpose:Quincey Koziol2001-11-031-2/+3
| | | | | | | | Code cleanup Description: Clean up various compiler warnings from generic property updates. Platforms tested: FreeBSD 4.4 (hawkwind)
* [svn-r4572] Raymond Lu2001-10-251-4/+14
| | | | | | | Purpose: Followup file access property list changes. Platforms tested: IRIX64, SunOS 5.7, FreeBSD.
* [svn-r4554] Purpose:Quincey Koziol2001-10-171-0/+30
| | | | | | | | | | | Bug Fix Description: Section of code which defined file offset and length macros was removed a while ago and found during testing just now. Solution: Replaced section of code to define macros. Platforms tested: IRIX64 6.5 (modi4)
* [svn-r4355] Purpose:Quincey Koziol2001-08-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | Code cleanup (sorta) Description: When the first versions of the HDF5 library were designed, I remembered vividly the difficulties of porting code from a 32-bit platform to a 16-bit platform and asked that people use intn & uintn instead of int & unsigned int, respectively. However, in hindsight, this was overkill and unnecessary since we weren't going to be porting the HDF5 library to 16-bit architectures. Currently, the extra uintn & intn typedefs are causing problems for users who'd like to include both the HDF5 and HDF4 header files in one source module (like Kent's h4toh5 library). Solution: Changed the uintn & intn's to unsigned and int's respectively. Platforms tested: FreeBSD 4.4 (hawkwind)
* [svn-r4181] Purpose:Quincey Koziol2001-07-101-6/+6
| | | | | | | | | Bug Fix, Code Cleanup, Code Optimization, etc. Description: Fold in the hyperslab speedups, clean up compile warnings and change a few things from using 'unsigned' or 'hsize_t' to use 'size_t' instead. Platforms tested: FreeBSD 4.3 (hawkwind), Solaris 2.7 (arabica), Irix64 6.5 (modi4)
* [svn-r3974] code warrior portPedro Vicente Nunes2001-06-071-18/+1
|
* [svn-r3781] Purpose:Bill Wendling2001-04-051-9/+9
| | | | | | | | | | | | | | | | | | Update Description: Changed #include <hdf_file.h> construct to #include "hdf_file.h" so that the GNU compiler can more easily pick up the dependencies which it places in the .depend and Dependencies files. Also regenerated the Dependencies to go along with this. Platforms tested: Linux
* [svn-r3288] Purpose:Albert Cheng2001-01-121-1/+0
| | | | | | | | | | | | | | | | Bug fix (sort of) (H5FDgass.c: just deleted an old code. Nothing to do with this fix.) Description: When --enable-debug=all was used, couple routine printf warnings to stderr that it is an expensive operation. This messed up the testing of h5ls since it included stderr output in its expected output and did not expect the extra messages. Solution: Changed it such that the extra messages are printed only if the appropriate h5-debug-class setting is on (via environment variables, for example). Platforms tested: eirene (debug=all), modi4(parallel,-64,default configure).
* [svn-r3217] ./hdf5/src/H5FDgass.cRobb Matzke2000-12-291-2/+3
| | | | | | | 2000-12-29 08:54:15 Robb Matzke <matzke@llnl.gov> * H5FD_gass_query: The `flags' argument is advertised to be output only. Therefore I added code to zero its value before the feature bits are assigned.
* [svn-r3010] Purpose:Quincey Koziol2000-11-281-2/+2
| | | | | | | | | | | | | | Bug fix Description: When the v1.2 compatibility code was turned on, internal functions in the library were getting confused. Solution: Separated guts of H5Pget_driver call into an API function (the definition of which depends on the compatibility switch) and an internal function which always behaves like the v1.3/4 function. Replaced API function calls in the library code with the internal function. Platforms tested: FreeBSD 4.2 (hawkwind)
* [svn-r2866] Purpose:Quincey Koziol2000-11-111-1/+1
| | | | | | | | Code cleanup Description: Found more "Have_foo" usage and converted them to "H5_HAVE_foo" Platforms tested: FreeBSD 4.1.1 (hawkwind)
* [svn-r2805] Raymond Lu2000-11-071-1/+1
| | | | | | | | | | | | | | | | Purpose: Fix typos in these files. Description: In the functions H5Pset_apl_xxx in these files, the parameters of FUNC_ENTER do not match the function names. So changed them back to function names. Solution: [details about the changes, algorithm, etc...] [Please as detail as you can since your own explanation is better than others guessing it from the code.] Platforms tested: No test has been done because these are all typos, no effect on program.
* [svn-r2722] Purpose:Quincey Koziol2000-10-241-2/+2
| | | | | | | | | | Feature symmetry Description: A while ago I needed to get the 'type' of data being accessed during writes to the VFL driver, so I put in code to get the information down there. Albert asked for the same information during reads, so I've added that in. Tested: FreeBSD 4.1.1 (hawkwind)
* [svn-r2652] Purpose:Quincey Koziol2000-10-101-0/+1
| | | | | | | | | | | | | | | Maintainance & performance enhancements Description: Re-arranged header files to protect private symbols better. Changed optimized regular hyperslab I/O to compute the offsets more efficiently from previous method of using matrix operations. Added sequential I/O operations at a more abstract level (at the same level as H5F_arr_read/write), to support the optimized hyperslab I/O. Platforms tested: Solaris 2.6 (baldric) & FreeBSD 4.1.1 (hawkwind)
* [svn-r2600] Purpose:Quincey Koziol2000-09-261-1/+36
| | | | | | | | | | | Implemented new feature Description: Added data sieve buffering code to raw I/O data path. This is enabled for all the VFL drivers except the mpio & core drivers. Also added two new API functions to control the sieve buffer size: H5Pset_sieve_buf_size() and H5Pget_sieve_buf_size(). Platforms tested: Solaris 2.6 (i.e. baldric)
* [svn-r2498] Added new VFL 'query' code and added new 'type of data' ↵Quincey Koziol2000-08-311-2/+3
| | | | | | parameter to write call.
* [svn-r1925] DPSS is checked in.Raymond Lu1999-12-211-1/+0
|
* [svn-r1881] Changed all the HAVE_PARALLEL and HAVE_GASS macros to the newAlbert Cheng1999-12-171-3/+3
| | | | form of H5_HAVE_PARALLEL and H5_HAVE_GASS.
* [svn-r1802] Changes since 19991019Robb Matzke1999-11-011-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ---------------------- ./MANIFEST ./configure.in ./configure [REGENERATED] Added more checking for `make' features. ./Makefile.in ./doc/Makefile.in ./doc/html/Makefile.in ./doc/html/Tutor/Makefile.in ./examples/Makefile.in ./pablo/Makefile.in ./src/Makefile.in ./test/Makefile.in ./testpar/Makefile.in ./tools/Makefile.in ./config/commence.in ./config/conclude.in ./config/depend.in [REMOVED] ./config/depend1.in [NEW] ./config/depend2.in [NEW] ./config/depend3.in [NEW] ./config/depend4.in [NEW] ./config/dependN.in [NEW] The directory search stuff was moved into commence.in, thereby shortening the Makefile.in prologues. ./doc/html/Dependencies [NEW] ./doc/html/Tutor/Dependencies [NEW] ./examples/Dependencies [NEW] ./src/Dependencies [NEW] ./test/Dependencies [NEW] ./testpar/Dependencies [NEW] ./tools/Dependencies [NEW] The `.distdep' files were all renamed to `Dependencies' to make them more obvious. They are required (but may be empty) in every directory that has a Makefile.in that ends with @CONCLUDE@ (you'll get an obvious error from make if you forgot to create one). ./bin/trace ./src/H5.c Added H5E_major_t and H5E_minor_t although tracing only prints the integer value. ./src/H5E.c ./src/H5Epublic.h Added tracing information. ./src/H5FDcore.c ./src/H5FDfamily.c ./src/H5FDgass.c ./src/H5FDmpio.c ./src/H5FDsec2.c ./src/H5FDstdio.c Fixed places where FUNC_LEAVE() evaluated it's argument more than once. Added tracing information. Wrapped long lines. ./config/gnu-flags Fixed a syntax error when we don't have a gnu compiler.
* [svn-r1788] Converted all the VFL drivers except for the stdio and multi ↵Quincey Koziol1999-10-231-95/+126
| | | | | | drivers back into the "internal" HDF5 coding standard.
* [svn-r1621] Added GASS driver. Coded by Saurabh Bagchi, bagchi@uiuc.edu.Albert Cheng1999-08-311-0/+648
Minor changes done to test/gass_xxx.c so that they print the test skip message when GASS driver is not available. This change is the implementation of GASS within HDF5-1.3 (HDF5 with Virtual File Layer). The GASS driver gives the facility of accessing HDF files on remote ftp servers. To use the GASS driver, the option --with-gass=<GASS path> shoud be specified with configure. An example of the command line used to test the distribution was: ./configure --disable-shared --without-hdf4 --with-gass=/afs/ncsa/projects/hdf/v5/bagchi/globus/GLB/development/sparc-sun-solaris2.6_nothreads_standard_debug/include,/afs/ncsa/projects/hdf/v5/bagchi/globus/GLB/development/sparc-sun-solaris2.6_nothreads_standard_debug/lib --disable-parallel The user should change the path to point to his local GASS installation. Documentation about the features of GASS and the HDF-GASS design is available separately and till it is put up on the official web site, anyone interested may contact me. Test programs to read, write or append remote files have been provided in the test directory as "gass_read.c", "gass_write.c", "gass_append.c". The test programs have the ftp site to access #define-d at the top of the file which the user can change accordingly. ./src/H5Epublic. Added new error type for file close. ./src/H5F.c Added hooks for the GASS driver. ./src/H5public.h Added header files for GASS & Globus. ./src/Makefile.in Added dependancy on GASS driver in LIB_SRC. ./src/hdf5.h Included header file for GASS driver. ./src/H5FDgass.c [NEW] Routines for the GASS driver. ./src/H5FDgass.h [NEW] Header file for the GASS driver. ./test/Makefile.in Added dependancy on the gass test routines. ./test/gass_read.c File to test remote file reading using GASS. ./test/gass_write.c File to test remote file writing using GASS. ./test/gass_append.c File to test remote file appending using GASS.
generated by cgit v0.12 at 2024-07-17 09:15:38 (GMT)