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[svn-r5148] Snapshot version 1.5 release 24

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HDF Admin
2002-04-06 11:36:23 -05:00
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commit 8a086b1643
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doc/html/ADGuide/RELEASE.txt
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@@ -1,4 +1,4 @@
HDF5 version 1.5.23 released on Sat Mar 23 04:13:18 CST 2002
HDF5 version 1.5.24 released on Sat Apr 6 11:34:52 CST 2002
================================================================================
@@ -35,103 +35,118 @@ Bug Fixes since HDF5-1.4.2
Library
-------
* Fixed bug with contiguous hyperslabs not being detected, causing
slower I/O than necessary.
* Fixed bug where non-aligned hyperslab I/O on chunked datasets was
causing errors during I/O
* The RCSID string in H5public.h was causing the C++ compiling problem
because when it was included multiple times, C++ did not like multiple
definitions of the same static variable. All occurance of RCSID
definition are removed since we have not used it consistently before.
* Fixed bug with non-zero userblock sizes causing raw data to not write
correctly.
* Fixed build on Linux systems with --enable-static-exec flag. It now
works correctly.
* IMPORTANT: Fixed file metadata corruption bug which could cause metadata
data loss in certain situations.
* The allocation by alignment (H5Pset_alignment) feature code somehow
got dropped in some 1.3.x version. Re-implemented it with "new and
improved" algorithm. It keeps track of "wasted" file-fragment in
the free-list too.
* Removed limitation that the data transfer buffer size needed to be
set for datasets whose dimensions were too large for the 'all' selection
code to handle. Any size dimensioned datasets should be handled
correctly now.
* Changed behavior of H5Tget_member_type to correctly emulate HDF5 v1.2.x
when --enable-hdf5v1_2 configure flag is enabled.
* Tweaked a few API functions to use 'size_t' instead of 'unsigned' or
'hsize_t', which may cause errors in some cases.
* Fixed a bug of H5pubconf.h causing repeated definitions if it is included
more than once. hdf5.h now includes H5public.h which includes
H5pubconf.h. Applications should #include hdf5.h which handles multiple
inclusion correctly.
* Fixed H5FDmpio.h to be C++ friendly by making Parallel HDF5 API's to be
external to C++.
* Fixed a bug in H5FD_mpio_flush() that might result in negative file seek
if both MPIO and Split-file drivers are used together.
* Added new parallel hdf5 tests in t_mpi. The new test checks if the
filesystem or the MPI-IO can really handle greater than 2GB files.
If it fails, it prints information message only without failing the
test.
* Fixed a bug when reading chunked datasets where the edge of the dataset
would be incorrectly detected and generate an assertion failure.
* Fixed bug where selection offset was being ignored for certain hyperslab
selections when optimized I/O was being performed. QAK - 2002/04/02
* Added serial multi-gigabyte file size test. "test/big -h" shows
the help page. AKC - 2002/03/29
* Fixed bug where variable-length string type doesn't behave as
string. SLU - 2002/03/28
* Fixed bug in H5Gget_objinfo() which was not setting the 'fileno'
of the H5G_stat_t struct. QAK - 2002/03/27
* Fixed data corruption bug in hyperslab routines when contiguous
hyperslab that spans entire dimension and is larger than type
conversion buffer is attempted to be read. QAK - 2002/03/26
* Fixed bug where non-zero fill-value was not being read correctly from
certain chunked datasets when using an "all" or contiguous hyperslab
selection. QAK - 2002/02/14
* Fixed bug where a preempted chunk in the chunk data could still be
used by an internal pointer and cause an assertion failure or core
dump. QAK - 2002/02/13
* Fixed bug where raw data re-allocated from the free-list would sometimes
overlap with the metadata accumulator and get corrupted. QAK - 2002/01/23
* Fixed bug where variable-length datatypes for attributes was not working
correctly.
* Retired the DPSS virtual file driver (--with-gridstorage configure
option).
* Corrected behavior of H5Tinsert to not allow compound datatype fields to
be inserted past the end of the datatype.
* Fixed the internal macros used to encode & decode file metadata, to avoid
an unaligned access warning on IA64 machines.
* Fixed an off-by-one error in H5Sselect_valid when hyperslab selections
which would allow hyperslab selections which overlapped the edge of the
selection by one element as valid.
* Fixed a bug in internal B-tree code where a B-tree was not being copied
correctly.
* Fixed a bug in the 'big' test where quota limits weren't being detected
properly if they caused close() to fail.
* Fixed a bug where 'or'ing a hyperslab with a 'none' selection would
fail. Now adds that hyperslab as the first hyperlab in the selection.
* Fixed a bug where appending a point selection to the current selection
would not actually append the point when there were no points defined
currently.
* Fixed a bug where reading or writing chunked data which needed datatype
conversion could result in data values getting corrupted.
* Fixed a bug where reading an entire dataset wasn't being handled
optimally when the dataset had unlimited dimensions. Dataset is read
in a single low-level I/O now, instead of being broken into separate
pieces internally.
* Fixed a bug where reading or writing chunked data which needed datatype
conversion could result in data values getting corrupted.
* Fixed a bug where appending a point selection to the current selection
would not actually append the point when there were no points defined
currently.
* Fixed a bug where 'or'ing a hyperslab with a 'none' selection would
fail. Now adds that hyperslab as the first hyperlab in the selection.
* Fixed a bug in the 'big' test where quota limits weren't being detected
properly if they caused close() to fail.
* Fixed a bug in internal B-tree code where a B-tree was not being copied
correctly.
* Fixed an off-by-one error in H5Sselect_valid when hyperslab selections
which would allow hyperslab selections which overlapped the edge of the
selection by one element as valid.
* Fixed the internal macros used to encode & decode file metadata, to avoid
an unaligned access warning on IA64 machines.
* Corrected behavior of H5Tinsert to not allow compound datatype fields to
be inserted past the end of the datatype.
* Retired the DPSS virtual file driver (--with-gridstorage configure
option).
* Fixed bug where variable-length datatypes for attributes was not working
correctly.
* Fixed bug where raw data re-allocated from the free-list would sometimes
overlap with the metadata accumulator and get corrupted. QAK - 1/23/02
* Fixed bug where a preempted chunk in the chunk data could still be
used by an internal pointer and cause an assertion failure or core
dump. QAK - 2/13/02
* Fixed bug where non-zero fill-value was not being read correctly from
certain chunked datasets when using an "all" or contiguous hyperslab
selection. QAK - 2/14/02
* Fixed a bug when reading chunked datasets where the edge of the dataset
would be incorrectly detected and generate an assertion failure.
* Added new parallel hdf5 tests in t_mpi. The new test checks if the
filesystem or the MPI-IO can really handle greater than 2GB files.
If it fails, it prints information message only without failing the
test.
* Fixed a bug in H5FD_mpio_flush() that might result in negative file seek
if both MPIO and Split-file drivers are used together.
* Fixed H5FDmpio.h to be C++ friendly by making Parallel HDF5 API's to be
external to C++.
* Fixed a bug of H5pubconf.h causing repeated definitions if it is included
more than once. hdf5.h now includes H5public.h which includes
H5pubconf.h. Applications should #include hdf5.h which handles multiple
inclusion correctly.
* Tweaked a few API functions to use 'size_t' instead of 'unsigned' or
'hsize_t', which may cause errors in some cases.
* Changed behavior of H5Tget_member_type to correctly emulate HDF5 v1.2.x
when --enable-hdf5v1_2 configure flag is enabled.
* Removed limitation that the data transfer buffer size needed to be
set for datasets whose dimensions were too large for the 'all' selection
code to handle. Any size dimensioned datasets should be handled
correctly now.
* The allocation by alignment (H5Pset_alignment) feature code somehow
got dropped in some 1.3.x version. Re-implemented it with "new and
improved" algorithm. It keeps track of "wasted" file-fragment in
the free-list too.
* IMPORTANT: Fixed file metadata corruption bug which could cause metadata
data loss in certain situations.
* Fixed build on Linux systems with --enable-static-exec flag. It now
works correctly.
* Fixed bug with non-zero userblock sizes causing raw data to not write
correctly.
* The RCSID string in H5public.h was causing the C++ compiling problem
because when it was included multiple times, C++ did not like multiple
definitions of the same static variable. All occurance of RCSID
definition are removed since we have not used it consistently before.
* Fixed bug where non-aligned hyperslab I/O on chunked datasets was
causing errors during I/O
* Fixed bug with contiguous hyperslabs not being detected, causing
slower I/O than necessary.
Configuration
-------------
* Changed the default value of $NPROCS from 2 to 3 since 3 processes
have a much bigger chance catching parallel errors than just 2.
* Basic port to Compaq (nee DEC) Alpha OSF 5.
* Added --enable-linux-lfs flag to allow more control over whether to enable
or disable large file support on Linux.
* Can use just enable-threadsafe if the C compiler has builtin pthreads
support.
* Require HDF (a.k.a. hdf4) software that consists of a newer version
of zlib library which consists of the compress2() function. Versions
HDF version 4.1r3 and newer meets this requirement. The compress2
uses a newer compression algorithm used by the HDF5 library. Also,
4.1r3 has an hdp tool that can handle "loops" in Vgroups.
* Can use just enable-threadsafe if the C compiler has builtin pthreads
support.
* Added --enable-linux-lfs flag to allow more control over whether to enable
or disable large file support on Linux.
* Basic port to Compaq (nee DEC) Alpha OSF 5.
* Changed the default value of $NPROCS from 2 to 3 since 3 processes
have a much bigger chance catching parallel errors than just 2.
Tools
-----
* Fixed segfault when "-v" flag was used with the h5dumper.
* Fixed limitation in h5dumper with object names which reached over 1024
characters in length. We can now handle arbitrarily larger sizes for
object names. BW - 2002/02/27
* Fixed so that the "-i" flag works correctly with the h5dumper.
* Fixed segfault when "-v" flag was used with the h5dumper.
Documentation
@@ -141,9 +156,90 @@ Documentation
New Features
============
* A helper script called ``h5cc'', which helps compilation of HDF5
programs, is now distributed with HDF5. See the reference manual
for information on how to use this feature.
* A new query function H5Tget_member_index has been added for compound
and enumeration data types, to retrieve member's index by name.
SLU - 2002/04/05
* Improved performance of "regular" hyperslab I/O when using MPI-IO and the
datatype conversion is unneccessary. QAK - 2002/04/02
* Improved performance of single hyperslab I/O when datatype conversion is
unneccessary. QAK - 2002/04/02
* Added new "H5Sget_select_type" API function to determine which type of
selection is defined for a dataspace ("all", "none", "hyperslab" or
"point"). QAK - 2002/02/7
* Added support to read/write portions of chunks directly, if they are
uncompressed and too large to cache. This should speed up I/O on chunked
datasets for a few more cases. QAK - 2002/01/31
* Parallel HDF5 is now supported on HP-UX 11.00 platforms.
* Added H5Rget_obj_type() API function, which performs the same functionality
as H5Rget_object_type(), but requires the reference type as a parameter
in order to correctly handle dataset region references. Moved
H5Rget_object_type() to be only compiled into the library when v1.4
compatibility is enabled.
* Changed internal error handling macros to reduce code size of library by
about 10-20%.
* Added a new file access property, file close degree, to control file
close behavior. It has four values, H5F_CLOSE_WEAK, H5F_CLOSE_SEMI,
H5F_CLOSE_STRONG, and H5F_CLOSE_DEFAULT. Two correspont functions
H5Pset_fclose_degree and H5Pget_fclose_degree are also provided. Two
new functions H5Fget_obj_count and H5Fget_obj_ids are offerted to assist
this new feature. For full details, please refer to the reference
manual under the description of H5Fcreate, H5Fopen, H5Fclose and the
functions mentioned above.
* Removed H5P(get|set)_hyper_cache API function, since the property is no
longer used.
* Improved performance of non-contiguous hyperslabs (built up with
several hyperslab selection calls).
* Improved performance of single, contiguous hyperslabs when reading or
writing.
* As part of the transition to using generic properties everywhere, the
parameter of H5Pcreate changed from H5P_class_t to hid_t, as well
the return type of H5Pget_class changed from H5P_class_t to hid_t.
Further changes are still necessary and will be documented here as they
are made.
* Added a new test to verify the information provided by the configure
command.
* The H5Pset_fapl_split() accepts raw and meta file names similar to the
syntax of H5Pset_fapl_multi() in addition to what it used to accept.
* Added perform programs to test the HDF5 library performance. Programs
are installed in directory perform/.
* Added new checking in H5check_version() to verify the five HDF5 version
information macros (H5_VERS_MAJOR, H5_VERS_MINOR, H5_VERS_RELEASE,
H5_VERS_SUBRELEASE and H5_VERS_INFO) are consistent.
* Added a new public macro, H5_VERS_INFO, which is a string holding
the HDF5 library version information. This string is also compiled
into all HDF5 binary code which helps to identify the version
information of the binary code. One may use the Unix strings
command on the binary file and looks for the pattern "HDF5 library
version".
* Added a parallel HDF5 example examples/ph5example.c to illustrate
the basic way of using parallel HDF5.
* Added two simple parallel performance tests as mpi-perf.c (MPI
performance) and perf.c (PHDF5 performance) in testpar.
* Improved regular hyperslab I/O by about a factor of 6 or so.
* Modified the Pablo build procedure to permit building of the instrumented
library to link either with the Trace libraries as before or with the
Pablo Performance Caputure Facility.
* Verified correct operation of library on Solaris 2.8 in both 64-bit and
32-bit compilation modes. See INSTALL document for instructions on
compiling the distribution with 64-bit support.
* Parallel HDF5 now runs on the HP V2500 and HP N4000 machines.
* H5 <-> GIF convertor has been added. This is available under
tools/gifconv. The convertor supports the ability to create animated
gifs as well.
* Added a global string variable H5_lib_vers_info_g which holds the
HDF5 library version information. This can be used to identify
an hdf5 library or hdf5 application binary.
Also added a verification of the consistency between H5_lib_vers_info_g
and other version information in the source code.
* File sizes greater than 2GB are now supported on Linux systems with
version 2.4.x or higher kernels.
* F90 APIs are available on HPUX 11.00 and IBM SP platforms.
* F90 static library is available on Windows platforms. See
INSTALL_Windows.txt for details.
* F90 API:
- Added aditional parameter "dims" to the h5dread/h5dwrite and
h5aread/h5awrite subroutines. This parameter is 1D array of size
7 and contains the sizes of the data buffer dimensions.
* C++ API:
- Added two new member functions: Exception::getFuncName() and
Exception::getCFuncName() to provide the name of the member
@@ -153,83 +249,9 @@ New Features
implementation. The new operator= functions invoke H5Tcopy,
H5Scopy, and H5Pcopy to make a copy of a datatype, dataspace,
and property list, respectively.
* F90 API:
- Added aditional parameter "dims" to the h5dread/h5dwrite and
h5aread/h5awrite subroutines. This parameter is 1D array of size
7 and contains the sizes of the data buffer dimensions.
* F90 static library is available on Windows platforms. See
INSTALL_Windows.txt for details.
* F90 APIs are available on HPUX 11.00 and IBM SP platforms.
* File sizes greater than 2GB are now supported on Linux systems with
version 2.4.x or higher kernels.
* Added a global string variable H5_lib_vers_info_g which holds the
HDF5 library version information. This can be used to identify
an hdf5 library or hdf5 application binary.
Also added a verification of the consistency between H5_lib_vers_info_g
and other version information in the source code.
* H5 <-> GIF convertor has been added. This is available under
tools/gifconv. The convertor supports the ability to create animated
gifs as well.
* Parallel HDF5 now runs on the HP V2500 and HP N4000 machines.
* Verified correct operation of library on Solaris 2.8 in both 64-bit and
32-bit compilation modes. See INSTALL document for instructions on
compiling the distribution with 64-bit support.
* Modified the Pablo build procedure to permit building of the instrumented
library to link either with the Trace libraries as before or with the
Pablo Performance Caputure Facility.
* Improved regular hyperslab I/O by about a factor of 6 or so.
* Added two simple parallel performance tests as mpi-perf.c (MPI
performance) and perf.c (PHDF5 performance) in testpar.
* Added a parallel HDF5 example examples/ph5example.c to illustrate
the basic way of using parallel HDF5.
* Added a new public macro, H5_VERS_INFO, which is a string holding
the HDF5 library version information. This string is also compiled
into all HDF5 binary code which helps to identify the version
information of the binary code. One may use the Unix strings
command on the binary file and looks for the pattern "HDF5 library
version".
* Added new checking in H5check_version() to verify the five HDF5 version
information macros (H5_VERS_MAJOR, H5_VERS_MINOR, H5_VERS_RELEASE,
H5_VERS_SUBRELEASE and H5_VERS_INFO) are consistent.
* Added perform programs to test the HDF5 library performance. Programs
are installed in directory perform/.
* The H5Pset_fapl_split() accepts raw and meta file names similar to the
syntax of H5Pset_fapl_multi() in addition to what it used to accept.
* Added a new test to verify the information provided by the configure
command.
* As part of the transition to using generic properties everywhere, the
parameter of H5Pcreate changed from H5P_class_t to hid_t, as well
the return type of H5Pget_class changed from H5P_class_t to hid_t.
Further changes are still necessary and will be documented here as they
are made.
* Improved performance of single, contiguous hyperslabs when reading or
writing.
* Improved performance of non-contiguous hyperslabs (built up with
several hyperslab selection calls).
* Removed H5P(get|set)_hyper_cache API function, since the property is no
longer used.
* Added a new file access property, file close degree, to control file
close behavior. It has four values, H5F_CLOSE_WEAK, H5F_CLOSE_SEMI,
H5F_CLOSE_STRONG, and H5F_CLOSE_DEFAULT. Two correspont functions
H5Pset_fclose_degree and H5Pget_fclose_degree are also provided. Two
new functions H5Fget_obj_count and H5Fget_obj_ids are offerted to assist
this new feature. For full details, please refer to the reference
manual under the description of H5Fcreate, H5Fopen, H5Fclose and the
functions mentioned above.
* Changed internal error handling macros to reduce code size of library by
about 10-20%.
* Added H5Rget_obj_type() API function, which performs the same functionality
as H5Rget_object_type(), but requires the reference type as a parameter
in order to correctly handle dataset region references. Moved
H5Rget_object_type() to be only compiled into the library when v1.4
compatibility is enabled.
* Parallel HDF5 is now supported on HP-UX 11.00 platforms.
* Added support to read/write portions of chunks directly, if they are
uncompressed and too large to cache. This should speed up I/O on chunked
datasets for a few more cases. -QAK, 1/31/02
* Added new "H5Sget_select_type" API function to determine which type of
selection is defined for a dataspace ("all", "none", "hyperslab" or
"point"). -QAK, 2/7/02
* A helper script called ``h5cc'', which helps compilation of HDF5
programs, is now distributed with HDF5. See the reference manual
for information on how to use this feature.
Platforms Tested