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authorLarry Knox <lrknox@hdfgroup.org>2022-03-07 14:31:58 (GMT)
committerGitHub <noreply@github.com>2022-03-07 14:31:58 (GMT)
commit44d992684080f52e31c46c9c88b2ed16b1572e5f (patch)
tree82560e946a7dc82edbbffee7ea3f5cd0e124fade
parentba032bb28bfff3b8d330b026cbd01e6e44be7578 (diff)
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Update HISTORY-1_13.txt and clean RELEASE.txt (#1471)
* Committing clang-format changes * Spelling of preceed was corrected to proceed, but should have been corrected to precede. * Correct spelling correction of 'preceed' incorrectly to 'proceed'. It should be 'precede'. * Update version to 1.13.2-1 after 1.13.1 release. Add Makefile.in to MANIFEST for addition of utils/tools and h5dwalk. * Update VERS_RELEASE_EXCEPTIONS with new incompatible release version. * Add HDF5 1.13.1 RELEASE.txt to HISTORY-1_13.txt contents to HISTORY-1_13.txt. Clean entries from RELEASE.txt. Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
-rw-r--r--release_docs/HISTORY-1_13.txt391
-rw-r--r--release_docs/RELEASE.txt144
2 files changed, 396 insertions, 139 deletions
diff --git a/release_docs/HISTORY-1_13.txt b/release_docs/HISTORY-1_13.txt
index 06be75b..91320a1 100644
--- a/release_docs/HISTORY-1_13.txt
+++ b/release_docs/HISTORY-1_13.txt
@@ -5,6 +5,7 @@ This file contains development history of the HDF5 1.13 releases from
the develop branch
01. Release Information for hdf5-1.13.0
+02. Release Information for hdf5-1.13.1
[Search on the string '%%%%' for section breaks of each release.]
@@ -1756,3 +1757,393 @@ These CVE issues have not yet been addressed and can be avoided by not building
the gif tool. Disable building the High-Level tools with these options:
autotools: --disable-hltools
cmake: HDF5_BUILD_HL_TOOLS=OFF
+
+
+%%%%1.13.1%%%%
+
+HDF5 version 1.13.1 released on 2022-03-02
+================================================================================
+
+
+INTRODUCTION
+============
+
+This document describes the differences between this release and the previous
+HDF5 release. It contains information on the platforms tested and known
+problems in this release. For more details check the HISTORY*.txt files in the
+HDF5 source.
+
+Note that documentation in the links below will be updated at the time of each
+final release.
+
+Links to HDF5 documentation can be found on The HDF5 web page:
+
+ https://portal.hdfgroup.org/display/HDF5/HDF5
+
+The official HDF5 releases can be obtained from:
+
+ https://www.hdfgroup.org/downloads/hdf5/
+
+Changes from Release to Release and New Features in the HDF5-1.13.x release series
+can be found at:
+
+ https://portal.hdfgroup.org/display/HDF5/HDF5+Application+Developer%27s+Guide
+
+If you have any questions or comments, please send them to the HDF Help Desk:
+
+ help@hdfgroup.org
+
+
+CONTENTS
+========
+
+- New Features
+- Support for new platforms and languages
+- Bug Fixes since HDF5-1.13.0
+- Platforms Tested
+- Known Problems
+- CMake vs. Autotools installations
+
+
+New Features
+============
+
+ Configuration:
+ -------------
+ - CPack will now generate RPM/DEB packages.
+
+ Enabled the RPM and DEB CPack generators on linux. In addition to
+ generating STGZ and TGZ packages, CPack will try to package the
+ library for RPM and DEB packages. This is the initial attempt and
+ may change as issues are resolved.
+
+ (ADB - 2022/01/27)
+
+ - Added new option to the h5cc scripts produced by CMake.
+
+ Add -showconfig option to h5cc scripts to cat the
+ libhdf5.settings file to the standard output.
+
+ (ADB - 2022/01/25)
+
+ - CMake will now run the PowerShell script tests in test/ by default
+ on Windows.
+
+ The test directory includes several shell script tests that previously
+ were not run by CMake on Windows. These are now run by default.
+ If TEST_SHELL_SCRIPTS is ON and PWSH is found, the PowerShell scripts
+ will execute. Similar to the bash scripts on unix platforms.
+
+ (ADB - 2021/11/23)
+
+
+ Library:
+ --------
+ - Add a new public function, H5ESget_requests()
+
+ This function allows the user to retrieve request pointers from an event
+ set. It is intended for use primarily by VOL plugin developers.
+
+ (NAF - 2022/01/11)
+
+
+ Parallel Library:
+ -----------------
+ - Several improvements to parallel compression feature, including:
+
+ * Improved support for collective I/O (for both writes and reads)
+
+ * Significant reduction of memory usage for the feature as a whole
+
+ * Reduction of copying of application data buffers passed to H5Dwrite
+
+ * Addition of support for incremental file space allocation for filtered
+ datasets created in parallel. Incremental file space allocation is the
+ default for these types of datasets (early file space allocation is
+ also still supported), while early file space allocation is still the
+ default (and only supported at allocation time) for unfiltered datasets
+ created in parallel. Incremental file space allocation should help with
+ parallel HDF5 applications that wish to use fill values on filtered
+ datasets, but would typically avoid doing so since dataset creation in
+ parallel would often take an excessive amount of time. Since these
+ datasets previously used early file space allocation, HDF5 would
+ allocate space for and write fill values to every chunk in the dataset
+ at creation time, leading to noticeable overhead. Instead, with
+ incremental file space allocation, allocation of file space for chunks
+ and writing of fill values to those chunks will be delayed until each
+ individual chunk is initially written to.
+
+ * Addition of support for HDF5's "don't filter partial edge chunks" flag
+ (https://portal.hdfgroup.org/display/HDF5/H5P_SET_CHUNK_OPTS)
+
+ * Addition of proper support for HDF5 fill values with the feature
+
+ * Addition of 'H5_HAVE_PARALLEL_FILTERED_WRITES' macro to H5pubconf.h
+ so HDF5 applications can determine at compile-time whether the feature
+ is available
+
+ * Addition of simple examples (ph5_filtered_writes.c and
+ ph5_filtered_writes_no_sel.c) under examples directory to demonstrate
+ usage of the feature
+
+ * Improved coverage of regression testing for the feature
+
+ (JTH - 2022/2/23)
+
+
+Support for new platforms, languages and compilers
+==================================================
+ - None
+
+
+Bug Fixes since HDF5-1.13.0 release
+===================================
+ Library
+ -------
+ - Fixed a metadata cache bug when resizing a pinned/protected cache entry
+
+ When resizing a pinned/protected cache entry, the metadata
+ cache code previously would wait until after resizing the
+ entry to attempt to log the newly-dirtied entry. This
+ caused H5C_resize_entry to mark the entry as dirty and made
+ H5AC_resize_entry think that it didn't need to add the
+ newly-dirtied entry to the dirty entries skiplist.
+
+ Thus, a subsequent H5AC__log_moved_entry would think it
+ needed to allocate a new entry for insertion into the dirty
+ entry skip list, since the entry didGn't exist on that list.
+ This caused an assertion failure, as the code to allocate a
+ new entry assumes that the entry is not dirty.
+
+ (JRM - 2022/02/28)
+
+ - Issue #1436 identified a problem with the H5_VERS_RELEASE check in the
+ H5check_version function.
+
+ Investigating the original fix, #812, we discovered some inconsistencies
+ with a new block added to check H5_VERS_RELEASE for incompatibilities.
+ This new block was not using the new warning text dealing with the
+ H5_VERS_RELEASE check and would cause the warning to be duplicated.
+
+ By removing the H5_VERS_RELEASE argument in the first check for
+ H5_VERS_MAJOR and H5_VERS_MINOR, the second check would only check
+ the H5_VERS_RELEASE for incompatible release versions. This adheres
+ to the statement that except for the develop branch, all release versions
+ in a major.minor maintenance branch should be compatible. The prerequisite
+ is that an application will not use any APIs not present in all release versions.
+
+ (ADB - 2022/02/24, #1438)
+
+ - Unified handling of collective metadata reads to correctly fix old bugs
+
+ Due to MPI-related issues occurring in HDF5 from mismanagement of the
+ status of collective metadata reads, they were forced to be disabled
+ during chunked dataset raw data I/O in the HDF5 1.10.5 release. This
+ wouldn't generally have affected application performance because HDF5
+ already disables collective metadata reads during chunk lookup, since
+ it is generally unlikely that the same chunks will be read by all MPI
+ ranks in the I/O operation. However, this was only a partial solution
+ that wasn't granular enough.
+
+ This change now unifies the handling of the file-global flag and the
+ API context-level flag for collective metadata reads in order to
+ simplify querying of the true status of collective metadata reads. Thus,
+ collective metadata reads are once again enabled for chunked dataset
+ raw data I/O, but manually controlled at places where some processing
+ occurs on MPI rank 0 only and would cause issues when collective
+ metadata reads are enabled.
+
+ (JTH - 2021/11/16, HDFFV-10501/HDFFV-10562)
+
+ - Fixed several potential MPI deadlocks in library failure conditions
+
+ In the parallel library, there were several places where MPI rank 0
+ could end up skipping past collective MPI operations when some failure
+ occurs in rank 0-specific processing. This would lead to deadlocks
+ where rank 0 completes an operation while other ranks wait in the
+ collective operation. These places have been rewritten to have rank 0
+ push an error and try to cleanup after the failure, then continue to
+ participate in the collective operation to the best of its ability.
+
+ (JTH - 2021/11/09)
+
+
+Platforms Tested
+===================
+
+ Linux 5.13.14-200.fc34 GNU gcc (GCC) 11.2.1 2021078 (Red Hat 11.2.1-1)
+ #1 SMP x86_64 GNU/Linux GNU Fortran (GCC) 11.2.1 2021078 (Red Hat 11.2.1-1)
+ Fedora34 clang version 12.0.1 (Fedora 12.0.1-1.fc34)
+ (cmake and autotools)
+
+ Linux 5.11.0-34-generic GNU gcc (GCC) 9.3.0-17ubuntu1
+ #36-Ubuntu SMP x86_64 GNU/Linux GNU Fortran (GCC) 9.3.0-17ubuntu1
+ Ubuntu 20.04 Ubuntu clang version 10.0.0-4
+ (cmake and autotools)
+
+ Linux 5.8.0-63-generic GNU gcc (GCC) 10.3.0-1ubuntu1
+ #71-Ubuntu SMP x86_64 GNU/Linux GNU Fortran (GCC) 10.3.0-1ubuntu1
+ Ubuntu20.10 Ubuntu clang version 11.0.0-2
+ (cmake and autotools)
+
+ Linux 5.3.18-22-default GNU gcc (SUSE Linux) 7.5.0
+ #1 SMP x86_64 GNU/Linux GNU Fortran (SUSE Linux) 7.5.0
+ SUSE15sp2 clang version 7.0.1 (tags/RELEASE_701/final 349238)
+ (cmake and autotools)
+
+ Linux-4.14.0-115.21.2 spectrum-mpi/rolling-release
+ #1 SMP ppc64le GNU/Linux clang 8.0.1, 11.0.1
+ (lassen) GCC 7.3.1
+ XL 16.1.1.2
+ (cmake)
+
+ Linux-3.10.0-1160.49.1 openmpi-intel/4.1
+ #1 SMP x86_64 GNU/Linux Intel(R) Version 18.0.5, 19.1.2
+ (chama) (cmake)
+
+ Linux-4.12.14-150.75-default cray-mpich/7.7.10
+ #1 SMP x86_64 GNU/Linux GCC 7.3.0, 8.2.0
+ (cori) Intel (R) Version 19.0.3.199
+ (cmake)
+
+ Linux-4.12.14-197.86-default cray-mpich/7.7.6
+ # 1SMP x86_64 GNU/Linux GCC 7.3.0, 9.3.0, 10.2.0
+ (mutrino) Intel (R) Version 17.0.4, 18.0.5, 19.1.3
+ (cmake)
+
+ Linux 3.10.0-1160.36.2.el7.ppc64 gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+ #1 SMP ppc64be GNU/Linux g++ (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+ Power8 (echidna) GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
+
+ Linux 3.10.0-1160.24.1.el7 GNU C (gcc), Fortran (gfortran), C++ (g++)
+ #1 SMP x86_64 GNU/Linux compilers:
+ Centos7 Version 4.8.5 20150623 (Red Hat 4.8.5-4)
+ (jelly/kituo/moohan) Version 4.9.3, Version 5.3.0, Version 6.3.0,
+ Version 7.2.0, Version 8.3.0, Version 9.1.0
+ Intel(R) C (icc), C++ (icpc), Fortran (icc)
+ compilers:
+ Version 17.0.0.098 Build 20160721
+ GNU C (gcc) and C++ (g++) 4.8.5 compilers
+ with NAG Fortran Compiler Release 6.1(Tozai)
+ Intel(R) C (icc) and C++ (icpc) 17.0.0.098 compilers
+ with NAG Fortran Compiler Release 6.1(Tozai)
+ MPICH 3.1.4 compiled with GCC 4.9.3
+ MPICH 3.3 compiled with GCC 7.2.0
+ OpenMPI 2.1.6 compiled with icc 18.0.1
+ OpenMPI 3.1.3 and 4.0.0 compiled with GCC 7.2.0
+ PGI C, Fortran, C++ for 64-bit target on
+ x86_64;
+ Version 19.10-0
+
+ Linux-3.10.0-1127.0.0.1chaos openmpi-4.0.0
+ #1 SMP x86_64 GNU/Linux clang 6.0.0, 11.0.1
+ (quartz) GCC 7.3.0, 8.1.0
+ Intel 16.0.4, 18.0.2, 19.0.4
+
+ macOS Apple M1 11.6 Apple clang version 12.0.5 (clang-1205.0.22.11)
+ Darwin 20.6.0 arm64 gfortran GNU Fortran (Homebrew GCC 11.2.0) 11.1.0
+ (macmini-m1) Intel icc/icpc/ifort version 2021.3.0 202106092021.3.0 20210609
+
+ macOS Big Sur 11.3.1 Apple clang version 12.0.5 (clang-1205.0.22.9)
+ Darwin 20.4.0 x86_64 gfortran GNU Fortran (Homebrew GCC 10.2.0_3) 10.2.0
+ (bigsur-1) Intel icc/icpc/ifort version 2021.2.0 20210228
+
+ macOS High Sierra 10.13.6 Apple LLVM version 10.0.0 (clang-1000.10.44.4)
+ 64-bit gfortran GNU Fortran (GCC) 6.3.0
+ (bear) Intel icc/icpc/ifort version 19.0.4.233 20190416
+
+ macOS Sierra 10.12.6 Apple LLVM version 9.0.0 (clang-900.39.2)
+ 64-bit gfortran GNU Fortran (GCC) 7.4.0
+ (kite) Intel icc/icpc/ifort version 17.0.2
+
+ Mac OS X El Capitan 10.11.6 Apple clang version 7.3.0 from Xcode 7.3
+ 64-bit gfortran GNU Fortran (GCC) 5.2.0
+ (osx1011test) Intel icc/icpc/ifort version 16.0.2
+
+
+ Linux 2.6.32-573.22.1.el6 GNU C (gcc), Fortran (gfortran), C++ (g++)
+ #1 SMP x86_64 GNU/Linux compilers:
+ Centos6 Version 4.4.7 20120313
+ (platypus) Version 4.9.3, 5.3.0, 6.2.0
+ MPICH 3.1.4 compiled with GCC 4.9.3
+ PGI C, Fortran, C++ for 64-bit target on
+ x86_64;
+ Version 19.10-0
+
+ Windows 10 x64 Visual Studio 2015 w/ Intel C/C++/Fortran 18 (cmake)
+ Visual Studio 2017 w/ Intel C/C++/Fortran 19 (cmake)
+ Visual Studio 2019 w/ clang 12.0.0
+ with MSVC-like command-line (C/C++ only - cmake)
+ Visual Studio 2019 w/ Intel Fortran 19 (cmake)
+ Visual Studio 2019 w/ MSMPI 10.1 (C only - cmake)
+
+
+Known Problems
+==============
+ Setting a variable-length dataset fill value will leak the memory allocated
+ for the p field of the hvl_t struct. A fix is in progress for this.
+ HDFFV-10840
+
+ CMake files do not behave correctly with paths containing spaces.
+ Do not use spaces in paths because the required escaping for handling spaces
+ results in very complex and fragile build files.
+ ADB - 2019/05/07
+
+ At present, metadata cache images may not be generated by parallel
+ applications. Parallel applications can read files with metadata cache
+ images, but since this is a collective operation, a deadlock is possible
+ if one or more processes do not participate.
+
+ CPP ptable test fails on both VS2017 and VS2019 with Intel compiler, JIRA
+ issue: HDFFV-10628. This test will pass with VS2015 with Intel compiler.
+
+ The subsetting option in ph5diff currently will fail and should be avoided.
+ The subsetting option works correctly in serial h5diff.
+
+ Known problems in previous releases can be found in the HISTORY*.txt files
+ in the HDF5 source. Please report any new problems found to
+ help@hdfgroup.org.
+
+
+CMake vs. Autotools installations
+=================================
+While both build systems produce similar results, there are differences.
+Each system produces the same set of folders on linux (only CMake works
+on standard Windows); bin, include, lib and share. Autotools places the
+COPYING and RELEASE.txt file in the root folder, CMake places them in
+the share folder.
+
+The bin folder contains the tools and the build scripts. Additionally, CMake
+creates dynamic versions of the tools with the suffix "-shared". Autotools
+installs one set of tools depending on the "--enable-shared" configuration
+option.
+ build scripts
+ -------------
+ Autotools: h5c++, h5cc, h5fc
+ CMake: h5c++, h5cc, h5hlc++, h5hlcc
+
+The include folder holds the header files and the fortran mod files. CMake
+places the fortran mod files into separate shared and static subfolders,
+while Autotools places one set of mod files into the include folder. Because
+CMake produces a tools library, the header files for tools will appear in
+the include folder.
+
+The lib folder contains the library files, and CMake adds the pkgconfig
+subfolder with the hdf5*.pc files used by the bin/build scripts created by
+the CMake build. CMake separates the C interface code from the fortran code by
+creating C-stub libraries for each Fortran library. In addition, only CMake
+installs the tools library. The names of the szip libraries are different
+between the build systems.
+
+The share folder will have the most differences because CMake builds include
+a number of CMake specific files for support of CMake's find_package and support
+for the HDF5 Examples CMake project.
+
+The issues with the gif tool are:
+ HDFFV-10592 CVE-2018-17433
+ HDFFV-10593 CVE-2018-17436
+ HDFFV-11048 CVE-2020-10809
+These CVE issues have not yet been addressed and can be avoided by not building
+the gif tool. Disable building the High-Level tools with these options:
+ autotools: --disable-hltools
+ cmake: HDF5_BUILD_HL_TOOLS=OFF
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 8804d52..5e488be 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -36,7 +36,7 @@ CONTENTS
- New Features
- Support for new platforms and languages
-- Bug Fixes since HDF5-1.13.0
+- Bug Fixes since HDF5-1.13.1
- Platforms Tested
- Known Problems
- CMake vs. Autotools installations
@@ -66,85 +66,16 @@ New Features
(JTH - 2022/03/01)
- - CPack will now generate RPM/DEB packages.
-
- Enabled the RPM and DEB CPack generators on linux. In addition to
- generating STGZ and TGZ packages, CPack will try to package the
- library for RPM and DEB packages. This is the initial attempt and
- may change as issues are resolved.
-
- (ADB - 2022/01/27)
-
- - Added new option to the h5cc scripts produced by CMake.
-
- Add -showconfig option to h5cc scripts that cat the
- libhdf5-settings to the standard output.
-
- (ADB - 2022/01/25)
-
- - CMake will now run the PowerShell script tests in test/ by default
- on Windows.
-
- The test directory includes several shell script tests that previously
- were not run by CMake on Windows. These are now run by default.
- If TEST_SHELL_SCRIPTS is ON and PWSH is found, the PowerShell scripts
- will execute. Similar to the bash scripts on unix platforms.
-
- (ADB - 2021/11/23)
-
Library:
--------
- - Add a new public function, H5ESget_requests()
-
- This function allows the user to retrieve request pointers from an event
- set. It is intended for use primarily by VOL plug in developers.
-
- (NAF - 2022/01/11)
+ -
Parallel Library:
-----------------
- - Several improvements to parallel compression feature, including:
-
- * Improved support for collective I/O (for both writes and reads)
-
- * Significant reduction of memory usage for the feature as a whole
-
- * Reduction of copying of application data buffers passed to H5Dwrite
-
- * Addition of support for incremental file space allocation for filtered
- datasets created in parallel. Incremental file space allocation is the
- default for these types of datasets (early file space allocation is
- also still supported), while early file space allocation is still the
- default (and only supported allocation time) for unfiltered datasets
- created in parallel. Incremental file space allocation should help with
- parallel HDF5 applications that wish to use fill values on filtered
- datasets, but would typically avoid doing so since dataset creation in
- parallel would often take an excessive amount of time. Since these
- datasets previously used early file space allocation, HDF5 would
- allocate space for and write fill values to every chunk in the dataset
- at creation time, leading to noticeable overhead. Instead, with
- incremental file space allocation, allocation of file space for chunks
- and writing of fill values to those chunks will be delayed until each
- individual chunk is initially written to.
-
- * Addition of support for HDF5's "don't filter partial edge chunks" flag
- (https://portal.hdfgroup.org/display/HDF5/H5P_SET_CHUNK_OPTS)
-
- * Addition of proper support for HDF5 fill values with the feature
-
- * Addition of 'H5_HAVE_PARALLEL_FILTERED_WRITES' macro to H5pubconf.h
- so HDF5 applications can determine at compile-time whether the feature
- is available
-
- * Addition of simple examples (ph5_filtered_writes.c and
- ph5_filtered_writes_no_sel.c) under examples directory to demonstrate
- usage of the feature
-
- * Improved coverage of regression testing for the feature
+ -
- (JTH - 2022/2/23)
Fortran Library:
----------------
@@ -191,76 +122,11 @@ Support for new platforms, languages and compilers
-
-Bug Fixes since HDF5-1.12.0 release
+Bug Fixes since HDF5-1.13.1 release
===================================
Library
-------
- - Fixed a metadata cache bug when resizing a pinned/protected cache entry
-
- When resizing a pinned/protected cache entry, the metadata
- cache code previously would wait until after resizing the
- entry to attempt to log the newly-dirtied entry. This would
- cause H5C_resize_entry to mark the entry as dirty and make
- H5AC_resize_entry think that it doesn't need to add the
- newly-dirtied entry to the dirty entries skiplist.
-
- Thus, a subsequent H5AC__log_moved_entry would think it
- needs to allocate a new entry for insertion into the dirty
- entry skip list, since the entry doesn't exist on that list.
- This causes an assertion failure, as the code to allocate a
- new entry assumes that the entry is not dirty.
-
- (JRM - 2022/02/28)
-
- - Issue #1436 identified a problem with the H5_VERS_RELEASE check in the
- H5check_version function.
-
- Investigating the original fix, #812, we discovered some inconsistencies
- with a new block added to check H5_VERS_RELEASE for incompatibilities.
- This new block was not using the new warning text dealing with the
- H5_VERS_RELEASE check and would cause the warning to be duplicated.
-
- By removing the H5_VERS_RELEASE argument in the first check for
- H5_VERS_MAJOR and H5_VERS_MINOR, the second check would only check
- the H5_VERS_RELEASE for incompatible release versions. This adheres
- to the statement that except for the develop branch, all release versions
- in a major.minor maintenance branch should be compatible. The prerequisite
- is that an application will not use any APIs not present in all release versions.
-
- (ADB - 2022/02/24, #1438)
-
- - Unified handling of collective metadata reads to correctly fix old bugs
-
- Due to MPI-related issues occurring in HDF5 from mismanagement of the
- status of collective metadata reads, they were forced to be disabled
- during chunked dataset raw data I/O in the HDF5 1.10.5 release. This
- wouldn't generally have affected application performance because HDF5
- already disables collective metadata reads during chunk lookup, since
- it is generally unlikely that the same chunks will be read by all MPI
- ranks in the I/O operation. However, this was only a partial solution
- that wasn't granular enough.
-
- This change now unifies the handling of the file-global flag and the
- API context-level flag for collective metadata reads in order to
- simplify querying of the true status of collective metadata reads. Thus,
- collective metadata reads are once again enabled for chunked dataset
- raw data I/O, but manually controlled at places where some processing
- occurs on MPI rank 0 only and would cause issues when collective
- metadata reads are enabled.
-
- (JTH - 2021/11/16, HDFFV-10501/HDFFV-10562)
-
- - Fixed several potential MPI deadlocks in library failure conditions
-
- In the parallel library, there were several places where MPI rank 0
- could end up skipping past collective MPI operations when some failure
- occurs in rank 0-specific processing. This would lead to deadlocks
- where rank 0 completes an operation while other ranks wait in the
- collective operation. These places have been rewritten to have rank 0
- push an error and try to cleanup after the failure, then continue to
- participate in the collective operation to the best of its ability.
-
- (JTH - 2021/11/09)
+ -
Java Library