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diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt new file mode 100644 index 0000000..c1adf8d --- /dev/null +++ b/release_docs/RELEASE.txt @@ -0,0 +1,730 @@ +HDF5 version 1.10.1 released on 2017-04-27 +================================================================================ + +INTRODUCTION + +This document describes the differences between HDF5-1.10.0-patch1 and +HDF5 1.10.1, and contains information on the platforms tested and known +problems in HDF5-1.10.1. For more details check the HISTORY*.txt files +in the HDF5 source. + +Links to HDF5 1.10.1 source code, documentation, and additional materials can +be found on The HDF5 web page at: + + https://support.hdfgroup.org/HDF5/ + +The HDF5 1.10.1 release can be obtained from: + + https://support.hdfgroup.org/HDF5/release/obtain5.html + +User documentation for the snapshot can be accessed directly at this location: + + https://support.hdfgroup.org/HDF5/doc/ + +New features in the HDF5-1.10.x release series, including brief general +descriptions of some new and modified APIs, are described in the "New Features +in HDF5 Release 1.10" document: + + https://support.hdfgroup.org/HDF5/docNewFeatures/index.html + +All new and modified APIs are listed in detail in the "HDF5 Software Changes +from Release to Release" document, in the section "Release 10.1 (current +release) versus Release 1.10.0 + + https://support.hdfgroup.org/HDF5/doc/ADGuide/Changes.html + +If you have any questions or comments, please send them to the HDF Help Desk: + + help@hdfgroup.org + + +CONTENTS + +- Major New Features Introduced in HDF5 1.10.1 +- Other New Features and Enhancements +- Support for New Platforms, Languages, and Compilers +- Bug Fixes since HDF5-1.10.0-patch1 +- Supported Platforms +- Tested Configuration Features Summary +- More Tested Platforms +- Known Problems + + +Major New Features Introduced in HDF5 1.10.1 +============================================ + +For links to the RFCs and documentation in this section please view +https://support.hdfgroup.org/HDF5/docNewFeatures in a web browser. + +________________________________________ +Metadata Cache Image +________________________________________ + + HDF5 metadata is typically small, and scattered throughout the HDF5 file. + This can affect performance, particularly on large HPC systems. The + Metadata Cache Image feature can improve performance by writing the + metadata cache in a single block on file close, and then populating the + cache with the contents of this block on file open, thus avoiding the many + small I/O operations that would otherwise be required on file open and + close. See the RFC for complete details regarding this feature. Also, + see the Fine Tuning the Metadata Cache documentation. + + 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. + +________________________________________ +Metadata Cache Evict on Close +________________________________________ + + The HDF5 library's metadata cache is fairly conservative about holding on + to HDF5 object metadata (object headers, chunk index structures, etc.), + which can cause the cache size to grow, resulting in memory pressure on + an application or system. The "evict on close" property will cause all + metadata for an object to be evicted from the cache as long as metadata + is not referenced from any other open object. See the Fine Tuning the + Metadata Cache documentation for information on the APIs. + + At present, evict on close is disabled in parallel builds. + +________________________________________ +Paged Aggregation +________________________________________ + + The current HDF5 file space allocation accumulates small pieces of metadata + and raw data in aggregator blocks which are not page aligned and vary + widely in sizes. The paged aggregation feature was implemented to provide + efficient paged access of these small pieces of metadata and raw data. + See the RFC for details. Also, see the File Space Management documentation. + +________________________________________ +Page Buffering +________________________________________ + + Small and random I/O accesses on parallel file systems result in poor + performance for applications. Page buffering in conjunction with paged + aggregation can improve performance by giving an application control of + minimizing HDF5 I/O requests to a specific granularity and alignment. + See the RFC for details. Also, see the Page Buffering documentation. + + At present, page buffering is disabled in parallel builds. + + + +Other New Features and Enhancements +=================================== + + Library + ------- + - Added a mechanism for disabling the SWMR file locking scheme. + + The file locking calls used in HDF5 1.10.0 (including patch1) + will fail when the underlying file system does not support file + locking or where locks have been disabled. To disable all file + locking operations, an environment variable named + HDF5_USE_FILE_LOCKING can be set to the five-character string + 'FALSE'. This does not fundamentally change HDF5 library + operation (aside from initial file open/create, SWMR is lock-free), + but users will have to be more careful about opening files + to avoid problematic access patterns (i.e.: multiple writers) + that the file locking was designed to prevent. + + Additionally, the error message that is emitted when file lock + operations set errno to ENOSYS (typical when file locking has been + disabled) has been updated to describe the problem and potential + resolution better. + + (DER, 2016/10/26, HDFFV-9918) + + - The return type of H5Pget_driver_info() has been changed from void * + to const void *. + + The pointer returned by this function points to internal library + memory and should not be freed by the user. + + (DER, 2016/11/04, HDFFV-10017) + + - The direct I/O VFD has been removed from the list of VFDs that + support SWMR. + + This configuration was never officially tested and several SWMR + tests fail when this VFD is set. + + (DER, 2016/11/03, HDFFV-10169) + + Configuration: + -------------- + - The minimum version of CMake required to build HDF5 is now 3.2.2. + + (ADB, 2017/01/10) + + - An --enable/disable-developer-warnings option has been added to + configure. + + This disables warnings that do not indicate poor code quality such + as -Winline and gcc's -Wsuggest-attribute. Developer warnings are + disabled by default. + + (DER, 2017/01/10) + + - A bin/restore.sh script was added that reverts autogen.sh processing. + + (DER, 2016/11/08) + + - CMake: Added NAMESPACE hdf5:: to package configuration files to allow + projects using installed HDF5 binaries built with CMake to link with + them without specifying the HDF5 library location via IMPORTED_LOCATION. + + (ABD, 2016/10/17, HDFFV-10003) + + - CMake: Changed the CTEST_BUILD_CONFIGURATION option to + CTEST_CONFIGURATION_TYPE as recommended by the CMake documentation. + + (ABD, 2016/10/17, HDFFV-9971) + + + Fortran Library: + ---------------- + + - The HDF5 Fortran library can now be compiled with the NAG compiler. + + (MSB, 2017/2/10, HDFFV-9973) + + + C++ Library: + ------------ + + - The following C++ API wrappers have been added to the C++ Library: + + // Sets/Gets the strategy and the threshold value that the library + // will employ in managing file space. + FileCreatPropList::setFileSpaceStrategy - H5Pset_file_space_strategy + FileCreatPropList::getFileSpaceStrategy - H5Pget_file_space_strategy + + // Sets/Gets the file space page size for paged aggregation. + FileCreatPropList::setFileSpacePagesize - H5Pset_file_space_page_size + FileCreatPropList::getFileSpacePagesize - H5Pget_file_space_page_size + + // Checks if the given ID is valid. + IdComponent::isValid - H5Iis_valid + + // Sets/Gets the number of soft or user-defined links that can be + // traversed before a failure occurs. + LinkAccPropList::setNumLinks - H5Pset_nlinks + LinkAccPropList::getNumLinks - H5Pget_nlinks + + // Returns a copy of the creation property list of a datatype. + DataType::getCreatePlist - H5Tget_create_plist + + // Opens/Closes an object within a group or a file, regardless of object + // type + Group::getObjId - H5Oopen + Group::closeObjId - H5Oclose + + // Maps elements of a virtual dataset to elements of the source dataset. + DSetCreatPropList::setVirtual - H5Pset_virtual + + // Gets general information about this file. + H5File::getFileInfo - H5Fget_info2 + + // Returns the number of members in a type. + IdComponent::getNumMembers - H5Inmembers + + // Determines if an element type exists. + IdComponent::typeExists - H5Itype_exists + + // Determines if an object exists. + H5Location::exists - H5Lexists. + + // Returns the header version of an HDF5 object. + H5Object::objVersion - H5Oget_info for version + + (BMR, 2017/03/20, HDFFV-10004, HDFFV-10139, HDFFV-10145) + + - New exception: ObjHeaderIException for H5O interface. + + (BMR, 2017/03/15, HDFFV-10145) + + - New class LinkAccPropList for link access property list, to be used by + wrappers of H5Lexists. + + (BMR, 2017/01/04, HDFFV-10145) + + - New constructors to open datatypes in ArrayType, CompType, DataType, + EnumType, FloatType, IntType, StrType, and VarLenType. + + (BMR, 2016/12/26, HDFFV-10056) + + - New member functions: + + DSetCreatPropList::setNbit() to setup N-bit compression for a dataset. + + ArrayType::getArrayNDims() const + ArrayType::getArrayDims() const + both to replace the non-const versions. + + (BMR, 2016/04/25, HDFFV-8623, HDFFV-9725) + + + Tools: + ------ + - The following options have been added to h5clear: + -s: clear the status_flags field in the file's superblock + -m: Remove the metadata cache image from the file + + (QAK, 2017/03/22, PR#361) + + + High-Level APIs: + --------------- + - Added New Fortran 2003 API for h5tbmake_table_f. + + (MSB, 2017/02/10, HDFFV-8486) + + + +Support for New Platforms, Languages, and Compilers +=================================================== + + - Added NAG compiler + + + +Bug Fixes since HDF5-1.10.0-patch1 release +================================== + + Library + ------- + - Outdated data structure was used in H5D_CHUNK_DEBUG blocks, causing + compilation errors when H5D_CHUNK_DEBUG was defined. This is fixed. + + (BMR, 2017/04/04, HDFFV-8089) + + - SWMR implementation in the HDF5 1.10.0 and 1.10.0-patch1 releases has a + broken metadata flush dependency that manifested itself with the following + error at the end of the HDF5 error stack: + + H5Dint.c line 846 in H5D__swmr_setup(): dataspace chunk index must be 0 + for SWMR access, chunkno = 1 + major: Dataset + minor: Bad value + + It was also reported at https://github.com/areaDetector/ADCore/issues/203 + + The flush dependency is fixed in this release. + + - Changed the plugins dlopen option from RTLD_NOW to RTLD_LAZY + + (ABD, 2016/12/12, PR#201) + + - A number of issues were fixed when reading/writing from/to corrupted + files to ensure that the library fails gracefully in these cases: + + * Writing to a corrupted file that has an object message which is + incorrectly marked as sharable on disk results in a buffer overflow / + invalid write instead of a clean error message. + + * Decoding data from a corrupted file with a dataset encoded with the + H5Z_NBIT decoding can result in a code execution vulnerability under + the context of the application using the HDF5 library. + + * When decoding an array datatype from a corrupted file, the HDF5 library + fails to return an error in production if the number of dimensions + decoded is greater than the maximum rank. + + * When decoding an "old style" array datatype from a corrupted file, the + HDF5 library fails to return an error in production if the number of + dimensions decoded is greater than the maximum rank. + + (NAF, 2016/10/06, HDFFV-9950, HDFFV-9951, HDFFV-9992, HDFFV-9993) + + - Fixed an error that would occur when copying an object with an attribute + which is a compound datatype consisting of a variable length string. + + (VC, 2016/08/24, HDFFV-7991) + + - H5DOappend will no longer fail if a dataset has no append callback + registered. + + (VC, 2016/08/14, HDFFV-9960) + + - Fixed an issue where H5Pset_alignment could result in misaligned blocks + with some input combinations, causing an assertion failure in debug mode. + + (NAF, 2016/08/11, HDFFV-9948) + + - Fixed a problem where a plugin compiled into a DLL in the default plugin + directory could not be found by the HDF5 library at runtime on Windows + when the HDF5_PLUGIN_PATH environment variable was not set. + + (ABD, 2016/08/01, HDFFV-9706) + + - Fixed an error that would occur when calling H5Adelete on an attribute + which is attached to an externally linked object in the target file and + whose datatype is a committed datatype in the main file. + + (VC, 2016/07/06, HDFFV-9940) + + - (a) Throw an error instead of assertion when v1 btree level hits the 1 + byte limit. + (b) Modifications to better handle error recovery when conversion by + h5format_convert fails. + + (VC, 2016/05/29, HDFFV-9434) + + - Fixed a memory leak where an array used by the library to track SWMR + read retries was unfreed. + + The leaked memory was small (on the order of a few tens of ints) and + allocated per-file. The memory was allocated (and lost) only when a + file was opened for SWMR access. + + (DER, 2016/04/27, HDFFV-9786) + + - Fixed a memory leak that could occur when opening a file for the first + time (including creating) and the call fails. + + This occurred when the file-driver-specific info was not cleaned up. + The amount of memory leaked varied with the file driver, but would + normally be less than 1 kB. + + (DER, 2016/12/06, HDFFV-10168) + + - Fixed a failure in collective metadata writes. + + This failure only appeared when collective metadata writes + were enabled (via H5Pset_coll_metadata_write()). + + (JRM, 2017/04/10, HDFFV-10055) + + + Parallel Library + ---------------- + - Fixed a bug that could occur when allocating a chunked dataset in parallel + with an alignment set and an alignment threshold greater than the chunk + size but less than or equal to the raw data aggregator size. + + (NAF, 2016/08/11, HDFFV-9969) + + + Configuration + ------------- + - Configuration will check for the strtoll and strtoull functions + before using alternatives + + (ABD, 2017/03/17, PR#340) + + - CMake uses a Windows pdb directory variable if available and + will generate both static and shared pdb files. + + (ABD, 2017/02/06, HDFFV-9875) + + - CMake now builds shared versions of tools. + + (ABD, 2017/02/01, HDFFV-10123) + + - Makefiles and test scripts have been updated to correctly remove files + created when running "make check" and to avoid removing any files under + source control. In-source builds followed by "make clean" and "make + distclean" should result in the original source files. + + (LRK, 2017/01/17, HDFFV-10099) + + - The tools directory has been divided into two separate source and test + directories. This resolves a build dependency and, as a result, + 'make check' will no longer fail in the tools directory if 'make' was + not executed first. + + (ABD, 2016/10/27, HDFFV-9719) + + - CMake: Fixed a timeout error that would occasionally occur when running + the virtual file driver tests simultaneously due to test directory + and file name collisions. + + (ABD, 2016/09/19, HDFFV-9431) + + - CMake: Fixed a command length overflow error by converting custom + commands inside CMakeTest.cmake files into regular dependencies and + targets. + + (ABD, 2016/07/12, HDFFV-9939) + + - Fixed a problem preventing HDF5 to be built on 32-bit CYGWIN by + condensing cygwin configuration files into a single file and + removing outdated compiler settings. + + (ABD, 2016/07/12, HDFFV-9946) + + + Fortran + -------- + - Changed H5S_ALL_F from INTEGER to INTEGER(HID_T) + + (MSB, 2016/10/14, HDFFV-9987) + + + Tools + ----- + - h5diff now correctly ignores strpad in comparing strings. + + (ABD, 2017/03/03, HDFFV-10128) + + - h5repack now correctly parses the command line filter options. + + (ABD, 2017/01/24, HDFFV-10046) + + - h5diff now correctly returns an error when it cannot read data due + to an unavailable filter plugin. + + (ADB 2017/01/18, HDFFV-9994 ) + + - Fixed an error in the compiler wrapper scripts (h5cc, h5fc, et al.) + in which they would erroneously drop the file argument specified via + the -o flag when the -o flag was specified before the -c flag on the + command line, resulting in a failure to compile. + + (LRK, 2016/11/04, HDFFV-9938, HDFFV-9530) + + - h5repack User Defined (UD) filter parameters were not parsed correctly. + + The UD filter parameters were not being parsed correctly. Reworked coding + section to parse the correct values and verify number of parameters. + + (ABD, 2016/10/19, HDFFV-9996, HDFFV-9974, HDFFV-9515, HDFFV-9039) + + - h5repack allows the --enable-error-stack option on the command line. + + (ADB, 2016/08/08, HDFFV-9775) + + + C++ APIs + -------- + - The member function H5Location::getNumObjs() is moved to + class Group because the objects are in a group or a file only, + and H5Object::getNumAttrs to H5Location to get the number of + attributes at a given location. + + (BMR, 2017/03/17, PR#466) + + - Due to the change in the C API, the overloaded functions of + PropList::setProperty now need const for some arguments. They are + planned for deprecation and are replaced by new versions with proper + consts. + + (BMR, 2017/03/17, PR#344) + + - The high-level API Packet Table (PT) did not write data correctly when + the datatype is a compound type that has string type as one of the + members. This problem started in 1.8.15, after the fix of HDFFV-9042 + was applied, which caused the Packet Table to use native type to access + the data. It should be up to the application to specify whether the + buffer to be read into memory is in the machine's native architecture. + Thus, the PT is fixed to not use native type but to make a copy of the + user's provided datatype during creation or the packet table's datatype + during opening. If an application wishes to use native type to read the + data, then the application will request that. However, the Packet Table + doesn't provide a way to specify memory datatype in this release. This + feature will be available in future releases. + + (BMR, 2016/10/27, HDFFV-9758) + + - The obsolete macros H5_NO_NAMESPACE and H5_NO_STD have been removed from + the HDF5 C++ API library. + + (BMR, 2016/10/23, HDFFV-9532) + + - The problem where a user-defined function cannot access both, attribute + and dataset, using only one argument is now fixed. + + (BMR, 2016/10/11, HDFFV-9920) + + - In-memory array information, ArrayType::rank and + ArrayType::dimensions, were removed. This is an implementation + detail and should not affect applications. + + (BMR, 2016/04/25, HDFFV-9725) + + + Testing + ------- + - Fixed a problem that caused tests using SWMR to occasionally fail when + running "make check" using parallel make. + + (LRK, 2016/03/22, PR#338, PR#346, PR#358) + + +Supported Platforms +=================== + + Linux 2.6.32-573.18.1.el6.ppc64 gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4) + #1 SMP ppc64 GNU/Linux g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4) + (ostrich) GNU Fortran (GCC) 4.4.7 20120313 + (Red Hat 4.4.7-4) + IBM XL C/C++ V13.1 + IBM XL Fortran V15.1 + + Linux 3.10.0-327.10.1.el7 GNU C (gcc), Fortran (gfortran), C++ (g++) + #1 SMP x86_64 GNU/Linux compilers: + (kituo/moohan) Version 4.8.5 20150623 (Red Hat 4.8.5-4) + Version 4.9.3, Version 5.2.0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 15.0.3.187 Build 20150407 + MPICH 3.1.4 compiled with GCC 4.9.3 + + SunOS 5.11 32- and 64-bit Sun C 5.12 SunOS_sparc + (emu) Sun Fortran 95 8.6 SunOS_sparc + Sun C++ 5.12 SunOS_sparc + + Windows 7 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Windows 7 x64 Visual Studio 2012 w/ Intel Fortran 15 (cmake) + Visual Studio 2013 w/ Intel Fortran 15 (cmake) + Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Visual Studio 2015 w/ MSMPI 8 (cmake) + Cygwin(CYGWIN_NT-6.1 2.8.0(0.309/5/3) + gcc and gfortran compilers (GCC 5.4.0) + (cmake and autotools) + + Windows 10 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + Cygwin(CYGWIN_NT-6.1 2.8.0(0.309/5/3) + gcc and gfortran compilers (GCC 5.4.0) + (cmake and autotools) + + Windows 10 x64 Visual Studio 2015 w/ Intel Fortran 16 (cmake) + + Mac OS X Mt. Lion 10.8.5 Apple clang/clang++ version 5.1 from Xcode 5.1 + 64-bit gfortran GNU Fortran (GCC) 4.8.2 + (swallow/kite) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Mavericks 10.9.5 Apple clang/clang++ version 6.0 from Xcode 6.2 + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (wren/quail) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X Yosemite 10.10.5 Apple clang/clang++ version 6.1 from Xcode 7.0 + 64-bit gfortran GNU Fortran (GCC) 4.9.2 + (osx1010dev/osx1010test) Intel icc/icpc/ifort version 15.0.3 + + Mac OS X El Capitan 10.11.6 Apple clang/clang++ version 7.3 from Xcode 7.3 + 64-bit gfortran GNU Fortran (GCC) 5.2.0 + (osx1010dev/osx1010test) Intel icc/icpc/ifort version 16.0.2 + + +Tested Configuration Features Summary +===================================== + + In the tables below + y = tested + n = not tested in this release + C = Cluster + W = Workstation + x = not working in this release + dna = does not apply + ( ) = footnote appears below second table + <blank> = testing incomplete on this feature or platform + +Platform C F90/ F90 C++ zlib SZIP + parallel F2003 parallel +Solaris2.11 32-bit n y/y n y y y +Solaris2.11 64-bit n y/n n y y y +Windows 7 y y/y n y y y +Windows 7 x64 y y/y y y y y +Windows 7 Cygwin n y/n n y y y +Windows 7 x64 Cygwin n y/n n y y y +Windows 10 y y/y n y y y +Windows 10 x64 y y/y n y y y +Mac OS X Mountain Lion 10.8.5 64-bit n y/y n y y y +Mac OS X Mavericks 10.9.5 64-bit n y/y n y y y +Mac OS X Yosemite 10.10.5 64-bit n y/y n y y y +Mac OS X El Capitan 10.11.6 64-bit n y/y n y y y +CentOS 7.2 Linux 2.6.32 x86_64 PGI n y/y n y y y +CentOS 7.2 Linux 2.6.32 x86_64 GNU y y/y y y y y +CentOS 7.2 Linux 2.6.32 x86_64 Intel n y/y n y y y +Linux 2.6.32-573.18.1.el6.ppc64 n y/y n y y y + + +Platform Shared Shared Shared Thread- + C libs F90 libs C++ libs safe +Solaris2.11 32-bit y y y y +Solaris2.11 64-bit y y y y +Windows 7 y y y y +Windows 7 x64 y y y y +Windows 7 Cygwin n n n y +Windows 7 x64 Cygwin n n n y +Windows 10 y y y y +Windows 10 x64 y y y y +Mac OS X Mountain Lion 10.8.5 64-bit y n y y +Mac OS X Mavericks 10.9.5 64-bit y n y y +Mac OS X Yosemite 10.10.5 64-bit y n y y +Mac OS X El Capitan 10.11.6 64-bit y n y y +CentOS 7.2 Linux 2.6.32 x86_64 PGI y y y n +CentOS 7.2 Linux 2.6.32 x86_64 GNU y y y y +CentOS 7.2 Linux 2.6.32 x86_64 Intel y y y n +Linux 2.6.32-573.18.1.el6.ppc64 y y y n + +Compiler versions for each platform are listed in the preceding +"Supported Platforms" table. + + +More Tested Platforms +===================== + +The following platforms are not supported but have been tested for this release. + + Linux 2.6.32-573.22.1.el6 GNU C (gcc), Fortran (gfortran), C++ (g++) + #1 SMP x86_64 GNU/Linux compilers: + (mayll/platypus) Version 4.4.7 20120313 + Version 4.8.4 + PGI C, Fortran, C++ for 64-bit target on + x86-64; + Version 16.10-0 + Intel(R) C (icc), C++ (icpc), Fortran (icc) + compilers: + Version 15.0.3.187 (Build 20150407) + MPICH 3.1.4 compiled with GCC 4.9.3 + + Linux 3.10.0-327.18.2.el7 GNU C (gcc) and C++ (g++) compilers + #1 SMP x86_64 GNU/Linux Version 4.8.5 20150623 (Red Hat 4.8.5-4) + (jelly) with NAG Fortran Compiler Release 6.1(Tozai) + Intel(R) C (icc) and C++ (icpc) compilers + Version 15.0.3.187 (Build 20150407) + with NAG Fortran Compiler Release 6.1(Tozai) + + Linux 2.6.32-573.18.1.el6.ppc64 MPICH mpich 3.1.4 compiled with + #1 SMP ppc64 GNU/Linux IBM XL C/C++ for Linux, V13.1 + (ostrich) and IBM XL Fortran for Linux, V15.1 + + Debian 8.4 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1 x86_64 GNU/Linux + gcc, g++ (Debian 4.9.2-10) 4.9.2 + GNU Fortran (Debian 4.9.2-10) 4.9.2 + (cmake and autotools) + + Fedora 24 4.7.2-201.fc24.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux + gcc, g++ (GCC) 6.1.1 20160621 + (Red Hat 6.1.1-3) + GNU Fortran (GCC) 6.1.1 20160621 + (Red Hat 6.1.1-3) + (cmake and autotools) + + Ubuntu 16.04.1 4.4.0-38-generic #57-Ubuntu SMP x86_64 GNU/Linux + gcc, g++ (Ubuntu 5.4.0-6ubuntu1~16.04.2) + 5.4.0 20160609 + GNU Fortran (Ubuntu 5.4.0-6ubuntu1~16.04.2) + 5.4.0 20160609 + (cmake and autotools) + + +Known Problems +============== + + 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. + + 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. |