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authorElena Pourmal <epourmal@hdfgroup.org>2003-06-03 17:27:13 (GMT)
committerElena Pourmal <epourmal@hdfgroup.org>2003-06-03 17:27:13 (GMT)
commit360fc65279dd80220edfc68c91429cc3373a1abd (patch)
treea92fcbd4246d8ecc0c499adcbc97446f319dbeec /release_docs/RELEASE.txt
parent12b00a5dd4d1a0f0caa8b5904f99d870595fd4c4 (diff)
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[svn-r6948]
Purpose: Maintenance for 1.6 release Description: I did more cleanup and restructuring of the file. Please take a look at the file when you have a chance. Thank you! Solution: Platforms tested: Misc. update:
Diffstat (limited to 'release_docs/RELEASE.txt')
-rw-r--r--release_docs/RELEASE.txt236
1 files changed, 123 insertions, 113 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index c4e3757..773a586 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -25,110 +25,39 @@ If you have any questions or comments, please send them to:
CONTENTS
- New Features
-- Bug Fixes since HDF5-1.4.0
- Support for new platforms and languages
+- Bug Fixes since HDF5-1.4.0
- Platforms Tested
- Known Problems
-Bug Fixes since HDF5-1.4.0 release
-==================================
-
-Library
--------
- * The library now correctly reuses space when objects are deleted in the
- file. This should be handled correctly for every situation, except
- datasets with variable-length datatypes are not returning the space they
- use in the global heap currently. QAK - 2003/04/13
- * Fixed error in B-tree deletion routine which could cause groups to be
- corrupted when objects are removed from them.
- QAK - 2003/04/11
- * Fixed error in file space freeing code which could cause metadata to
- fail to be written to the file.
- QAK - 2003/04/11
- * -O caused errors in AIX 5.x platforms. Removed it from
- --enable-production mode. AKC - 2003/03/31
- * Corrected memory/resource leaks in per-thread key information when
- thread-safe operation was enabled. QAK - 2003/02/07
- * Improved error assertion for nil VL strings, making it fails with error
- stack instead of just assertion failure. SLU - 2002/12/16
- * Added two new API functions: H5Zunregister & H5Zfilter_avail.
- QAK - 2002/11/16
- * Add data shuffle filter(source code H5Zshuffle.c), the combination of the
- shuffling and compression can make data compression better without suffering
- much encoding and decoding CPU time for many application datasets(especially
- for floating point data). This adds a new API function: H5Pset_shuffle.
- KY - 2002/11/13
- * Allow scalar dataspaces to be used for parallel I/O. QAK - 2002/11/05
- * New functions H5Gget_comment(modification), H5Aget_storage_size,
- H5Arename. SLU - 2002/10/29
- * Fixed an assertion of H5S_select_iterate that did not account for scalar
- type that has no dimension sizes. AKC - 2002/10/15
- * Partially fixed space allocation inefficiencies in the file by
- improving our algorithms for re-using freed space. QAK - 2002/08/27
- * Fixed data corruption problem which could occur when fill values were
- written to a contiguously stored dataset in parallel. QAK - 2002/08/27
- * Fixed VL memory leak when data is overwritten. The heap objects holding
- old data are freed. If the fill value writting time is set to
- H5D_FILL_TIME_NEVER, the library prohibits user to create VL type dataset.
- The library free all the heap objects storing VL type if there is nested
- VL type(a VL type contains another VL type). SLU - 2002/07/10
- * Tweaked a few API functions to use 'size_t' instead of 'unsigned' or
- 'hsize_t', which may cause errors in some cases.
-
-
-Configuration
--------------
-
- * Included the both the examples of fortran and c++ "make check-install"
- testing. This tests the correctness of the h5fc command. AKC - 2003/04/22
- * When using gcc 3.x, we use -std=c99 instead of -ansi for compiling.
- QAK - 2003/04/11
- * IA64 platform has its own configure setting and use Intel Compilers as
- the default compilers (were gcc and pgf90 before.) This also eliminated
- the segmentation fault in the fortran test. The missing reference of
- "exit" is fixed too. AKC - 2003/04/02
-
-
-Tools
------
-
- * Added a -force option to h5redeploy. AKC - 2003/03/04
- * The VL string bug(data and datatype cannot be shown) in h5dump is fixed.
- -SLU - 2002/11/18
- * Fixed segfault if h5dump was invoked with some options but no file (e.g.,
- h5dump -H). -AKC, 2002/10/15
- * 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 ( this section is messed up, we need to find place where
- to put it)
--------------
- o Library
- =========
- o General
- ---------
-
-
- o APIs
- ------
- o Fortran APIs
- --------------
- * Added support for generic properties.
- * Added support for time allocation properties.
-
- o Performance
- -------------
- * Improved dataset creation time by about 30% (relative to the 1.4.x
- branch).
-
New Features
============
+Configuration:
+--------------
+The following flags have been added to the configuration script:
+--enable-hdf5v1_4 Compile the HDF5 v1.4 compatibility interface
+--enable-mpe Enable MPE instrumentation [default=no]
+--enable-filters=all Turn on all internal I/O filters. One may also
+ specify a comma-separated list of filters or the
+ word no. The default is all internal I/O filters.
+--with-szlib=DIR Use szlib library for external szlib I/O filter
+ [default=no]
+
+Library:
+--------
+ Summary: This release has the following new features that are not
+ available in 1.4.* releases
+ 1. Generic properties to give application more control on I/O pipeline
+ 2. Time allocation and fill value properties
+ 3. New filters: external compression filter szip
+ internal shuffling and checksum filters
+ 4. Compact storage layout for datasets
+ 5. Redesigned I/O pipeline for better performance.
+
+ Complete list of changes:
+
* Changed raw data I/O to only access each chunk once, improving performance
in many situations with hyperslabs and large chunks or chunks with
filters. These improvements are currently limited to serial I/O, with
@@ -242,22 +171,8 @@ New Features
* 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.
- * Added new F90 APIs:
- H5F APIs:
- h5fget_obj_count_f h5fget_obj_ids_f
- EIP - 2002/10/01
- H5G APIs:
- h5glink2_f and h5gmove2_f
- EIP - 2002/09/25
- H5P APIs:
- h5pequal_f
- h5pget(set)_fclose_degree_f
- h5pget(set)_buffer_f
-
- H5T APIs:
- h5tget_member_index_f
- EIP - 2002/10/01
-
+ * Added new F90 APIs for generic properties, new filters, and
+ time/space allocation properties.
* C++ API:
- Added two new member functions: Exception::getFuncName() and
Exception::getCFuncName() to provide the name of the member
@@ -268,10 +183,100 @@ New Features
H5Scopy, and H5Pcopy to make a copy of a datatype, dataspace,
and property list, respectively.
+Parallel Library:
+-----------------
+
+Tools:
+------
+ * h5diff to compare two HDF5 files was added
+ * h5import to import ascii and binary data to an HDF5 file was added.
+ Old h5import tool in the tools/misc directory was renamed to
+ h5createU8 to reflect its purpose. h5createU8 will be deleted in
+ 1.6.1 release.
+
Support for new platforms and languages
=======================================
* Added C++ API support on HPUX11.00. BMR - 2003/03/19
+Bug Fixes since HDF5-1.4.0 release
+==================================
+
+Library
+-------
+ * The library now correctly reuses space when objects are deleted in the
+ file. This should be handled correctly for every situation, except
+ datasets with variable-length datatypes are not returning the space they
+ use in the global heap currently. QAK - 2003/04/13
+ * Fixed error in B-tree deletion routine which could cause groups to be
+ corrupted when objects are removed from them.
+ QAK - 2003/04/11
+ * Fixed error in file space freeing code which could cause metadata to
+ fail to be written to the file.
+ QAK - 2003/04/11
+ * -O caused errors in AIX 5.x platforms. Removed it from
+ --enable-production mode. AKC - 2003/03/31
+ * Corrected memory/resource leaks in per-thread key information when
+ thread-safe operation was enabled. QAK - 2003/02/07
+ * Improved error assertion for nil VL strings, making it fails with error
+ stack instead of just assertion failure. SLU - 2002/12/16
+ * Added two new API functions: H5Zunregister & H5Zfilter_avail.
+ QAK - 2002/11/16
+ * Add data shuffle filter(source code H5Zshuffle.c), the combination of the
+ shuffling and compression can make data compression better without suffering
+ much encoding and decoding CPU time for many application datasets(especially
+ for floating point data). This adds a new API function: H5Pset_shuffle.
+ KY - 2002/11/13
+ * Allow scalar dataspaces to be used for parallel I/O. QAK - 2002/11/05
+ * New functions H5Gget_comment(modification), H5Aget_storage_size,
+ H5Arename. SLU - 2002/10/29
+ * Fixed an assertion of H5S_select_iterate that did not account for scalar
+ type that has no dimension sizes. AKC - 2002/10/15
+ * Partially fixed space allocation inefficiencies in the file by
+ improving our algorithms for re-using freed space. QAK - 2002/08/27
+ * Fixed data corruption problem which could occur when fill values were
+ written to a contiguously stored dataset in parallel. QAK - 2002/08/27
+ * Fixed VL memory leak when data is overwritten. The heap objects holding
+ old data are freed. If the fill value writting time is set to
+ H5D_FILL_TIME_NEVER, the library prohibits user to create VL type dataset.
+ The library free all the heap objects storing VL type if there is nested
+ VL type(a VL type contains another VL type). SLU - 2002/07/10
+ * Tweaked a few API functions to use 'size_t' instead of 'unsigned' or
+ 'hsize_t', which may cause errors in some cases.
+
+
+Configuration
+-------------
+ * Included the both the examples of fortran and c++ "make check-install"
+ testing. This tests the correctness of the h5fc command. AKC - 2003/04/22
+ * When using gcc 3.x, we use -std=c99 instead of -ansi for compiling.
+ QAK - 2003/04/11
+ * IA64 platform has its own configure setting and use Intel Compilers as
+ the default compilers (were gcc and pgf90 before.) This also eliminated
+ the segmentation fault in the fortran test. The missing reference of
+ "exit" is fixed too. AKC - 2003/04/02
+
+Performance
+-------------
+ * Improved dataset creation time by about 30% (relative to the 1.4.x
+ branch).
+
+Tools
+-----
+
+ * Added a -force option to h5redeploy. AKC - 2003/03/04
+ * The VL string bug(data and datatype cannot be shown) in h5dump is fixed.
+ -SLU - 2002/11/18
+ * Fixed segfault if h5dump was invoked with some options but no file
+ (e.g., h5dump -H). -AKC, 2002/10/15
+ * Fixed so that the "-i" flag works correctly with the h5dumper.
+ * Fixed segfault when "-v" flag was used with the h5dumper.
+
+
+Documentation
+-------------
+
+
+
@@ -464,7 +469,7 @@ Known Problems
compiled with -O1 or -O0. Only -O (same as -O2) causes the test
program to fail.
-*Certain platforms give false negatives when testing h5ls:
+* Certain platforms give false negatives when testing h5ls:
- Cray J90 (and Cray T3E?) give errors during testing when displaying
some floating-point values. These are benign differences due to
the different precision in the values displayed and h5ls appears to
@@ -475,6 +480,11 @@ Known Problems
subdirectory in the top level directory with the Cray-specific files
from the site:
+* On some platforms that use Intel compilers to build HDF5 fortran library,
+ compilation may fail for fortranlib_test.f90, fflush1.f90 and fflush2.f90
+ complaining about exit subroutine. Comment out the line
+ IF (total_error .ne. 0) CALL exit (total_error)
+
ftp://hdf.ncsa.uiuc.edu/pub/ougoing/hdf5/hdf5-1.6.0/F90_source_for_Crays
* On IA32 and IA64 systems, if you use a compiler other than GCC (such as