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|
HDF5 version 1.8.19 currently under development
================================================================================
INTRODUCTION
============
This document describes the differences between HDF5-1.8.18 and
HDF5-1.8.19, and contains information on the platforms tested and
known problems in HDF5-1.8.19.
For more details, see the files HISTORY-1_0-1_8_0_rc3.txt
and HISTORY-1_8.txt in the release_docs/ directory of the HDF5 source.
Links to the HDF5 1.8.19 source code, documentation, and additional materials
can be found on the HDF5 web page at:
https://support.hdfgroup.org/HDF5/
The HDF5 1.8.19 release can be obtained from:
https://support.hdfgroup.org/HDF5/release/obtain518.html
User documentation for 1.8.19 can be accessed directly at this location:
https://support.hdfgroup.org/HDF5/doc1.8/
New features in the HDF5-1.8.x release series, including brief general
descriptions of some new and modified APIs, are described in the "What's New
in 1.8.0?" document:
https://support.hdfgroup.org/HDF5/doc/ADGuide/WhatsNew180.html
All new and modified APIs are listed in detail in the "HDF5 Software Changes
from Release to Release" document, in the section "Release 1.8.19 (current
release) versus Release 1.8.18
https://support.hdfgroup.org/HDF5/doc1.8/ADGuide/Changes.html
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, Languages, and Compilers
- Bug Fixes since HDF5-1.8.19
- Supported Platforms
- Supported Configuration Features Summary
- More Tested Platforms
- Known Problems
New Features
============
Configuration
--------------
- CMake in the Tools
User-defined filters on Windows require that tools be built
with shared libraries.
CMake command code added to build tools with
shared libraries as well as with static libraries.
(ADB - 2017/02/07, HDFFV-10123)
Library
-------
- H5PL package
Users would like to be able to set the plugin path programmatically
instead of through the environment variable.
H5PL package obtained new APIs for manipulating the entries of
the plugin path table. The new APIs are;
H5PLappend - Insert a plugin path at the end of the list.
H5PLprepend - Insert a plugin path at the beginning of the list.
H5PLreplace - Replace the path at the specified index.
H5PLinsert - Insert a plugin path at the specified index, moving
other paths after the index.
H5PLremove - Remove the plugin path at the specifed index and
compacting the list.
H5PLget - Query the plugin path at the specified index.
H5PLsize - Query the size of the current list of plugin paths.
(ADB - 2017/04/04, HDFFV-10143)
- H5Dget_chunk_storage_size
The storage size of a chunk in the file is needed to determine the size
of the buffer to be allocated for reading a chunk directly from a file.
New API function gets the size in bytes currently allocated within a
file for a raw data chunk in a dataset. This function was added to get
the chunk size in support of the implementation of H5DOread_chunks, but
may also be useful for other purposes.
(VC - 2017/05/02, HDFFV-9934)
C++ API
-------
- The following C++ API wrappers have been added to the C++ Library:
// Determines if a name exists.
H5Location::nameExists() - C API H5Lexists()
// Checks if an ID is valid.
IdComponent::isValid() - C API H5Iis_valid()
// Sets the number of soft or user-defined links that can be
// traversed before a failure occurs.
LinkAccPropList::setNumLinks() - C API H5Pset_nlinks()
// Gets the number of soft or user-defined link traversals allowed
LinkAccPropList::getNumLinks() - C API H5Pget_nlinks()
// Returns a copy of the creation property list of a datatype.
DataType::getCreatePlist() - C API H5Tget_create_plist()
// Opens an object within a location, regarless its type.
H5Location::openObjId() - C API H5Oopen()
H5Location::openObjId() - C API H5Oopen()
// Closes an object opened by openObjId().
H5Location::closeObjId() - C API H5Oclose()
// Gets general information about a file.
H5File::getFileInfo() - C API H5Fget_info()
// Returns the header version of an HDF5 object.
H5Object::objVersion() - C API H5Oget_info()
(BMR, 2017/05/13, HDFFV-10004, HDFFV-10156)
- New class LinkAccPropList is added for link access proprety list
(BMR, 2017/05/13, HDFFV-10156)
High-Level APIs
---------------
- H5DOread_chunk
Users wanted to read compressed data directly from a file without any
processing by the HDF5 data transfer pipeline, just as they were able
to write it directly to a file with H5DOwrite_chunk.
New API function, corresponding to existing function H5DOwrite_chunk.
H5DOread_chunk reads a raw data chunk directly from a chunked dataset
in the file into the application buffer, bypassing the library’s internal
data transfer pipeline, including filters.
(VC - 2017/05/02, HDFFV-9934)
Support for New Platforms, Languages, and Compilers
===================================================
- Added OpenMPI 2.0.1 compiled with GCC 4.9.3
Bug Fixes since HDF5-1.8.18
===========================
Configuration
-------------
- Support for Fortran shared libraries on OS X with autotools now
works. Cmake builds still disables Fortran shared libraries on OS X.
(MSB - 2017/04/30, HDFFV-2772)
Library
-------
- bitfield datatypes
bitfield datatypes did not fully support endianness of the data.
Improved the endianness of bitfield datatypes by adding missing functional
code. This code used integer types as a template.
(ADB - 2017/05/12, HDFFV-10186)
- Newly created datasets with H5D_COMPACT layout failed to open after
several H5Dopen/H5Dclose cycles.
The layout "dirty" flag for a compact dataset is now properly reset
before flushing the message.
(VC - 2017/05/11, HDFFV-10051)
- Missing #ifdef __cplusplus macros were added to the generated H5Epubgen.h file.
(DER - 2017/04/25, HDFFV-9638)
Tools
-----
- h5repack
h5repack did not maintain the creation order flag of the root
group.
Improved h5repack by reading the creation order and applying the
flag to the new root group. Also added arguments to set the
order and index direction, which applies to the traversing of the
original file, on the command line.
(ADB - 2017/05/26, HDFFV-8611)
- h5diff
h5diff failed to account for strpad type and null terminators
of char strings. Also, h5diff failed to account for string length
differences and would give a different result depending on file
order in the command line.
Improved h5diff compare of strings and arrays by adding a check for
string lengths and if the strpad was null filled.
(ADB - 2017/05/18, HDFFV-9055, HDFFV-10128)
- h5diff
h5diff help text about epsilon comparison was confusing.
Changed h5diff help text to indicate that the 'a' refers to the
datapoint in file1 and 'b' refers to the datapoint value in file2.
(ADB - 2017/05/16, HDFFV-9995)
- h5diff
h5diff did not report user-defined filter data differences correctly.
Improved h5diff compare of user-defined filter data by reporting an
error if the user-defined filter plugin cannot be found.
(ADB - 2017/01/18, HDFFV-9994)
C++ API
-------
- The class hierarchy is revised to better reflect the HDF5 model.
Class H5File is now derived from class Group instead of H5Location.
Class Attribute is now derived from H5Location instead of IdComponent.
Wrappers of H5A APIs in H5Location are now duplicated in H5Object,
the original wrappers in H5Location will be deprecated in future
releases.
(BMR - 2017/05/15, HDFFV-10156)
Supported Platforms
===================
The following platforms are supported and have been tested for this release.
They are built with the configure process unless specified otherwise.
Linux 2.6.32-573.22.1.el6 GNU C (gcc), Fortran (gfortran), C++ (g++)
#1 SMP x86_64 GNU/Linux compilers:
(platypus/mayll) Version 4.4.7 20120313
Versions 4.9.3, 5.2.0, 6.2.0
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 17.0.0.098 Build 20160721
MPICH 3.1.4 compiled with GCC 4.9.3
OpenMPI 2.0.1 compiled with GCC 4.9.3
Linux 2.6.32-573.18.1.el6 gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16)
#1 SMP ppc64 GNU/Linux g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16)
(ostrich) GNU Fortran (GCC) 4.4.7 20120313 (Red Hat 4.4.7-16)
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)
Versions 4.9.3, 5.3.0, 6.2.0
Intel(R) C (icc), C++ (icpc), Fortran (icc)
compilers:
Version 17.0.4.196 Build 20170411
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/ Intel C, Fortran 2017 (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 LLVM version 5.1 (clang-503.0.40)
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 LLVM version 6.0 (clang-600.0.57)
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 LLVM version 6.1 (clang-602.0.53)
64-bit gfortran GNU Fortran (GCC) 4.9.2
(osx1010dev/osx1010test) Intel icc/icpc/ifort version 15.0.3
Mac OS X El Capitan 10.11.4 Apple LLVM version 7.3.0 (clang-703.0.29)
64-bit gfortran GNU Fortran (GCC) 5.2.0
(VM osx1011dev/osx1011test) 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
SunOS 5.11 32-bit n y/y n y y y
SunOS 5.11 64-bit n y/y n y y y
Windows 7 y y/y n y y y
Windows 7 x64 y y/y n 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
AIX 6.1 32- and 64-bit n y/n n y y y
CentOS 6.7 Linux 2.6.32 x86_64 GNU y y/y y y y y
CentOS 6.7 Linux 2.6.32 x86_64 Intel n y/y n y y y
CentOS 6.7 Linux 2.6.32 x86_64 PGI n y/y n y y y
CentOS 7.1 Linux 3.10.0 x86_64 GNU y y/y y y y y
CentOS 7.1 Linux 3.10.0 x86_64 Intel n y/y n y y y
Linux 2.6.32-431.11.2.el6.ppc64 n y/n n y y y
Platform Shared Shared Shared Thread-
C libs F90 libs C++ libs safe
SunOS 5.11 32-bit y y y y
SunOS 5.11 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
AIX 6.1 32- and 64-bit y n n y
CentOS 6.7 Linux 2.6.32 x86_64 GNU y y y y
CentOS 6.7 Linux 2.6.32 x86_64 Intel y y y y
CentOS 6.7 Linux 2.6.32 x86_64 PGI y y y y
CentOS 7.1 Linux 3.10.0 x86_64 GNU y y y y
CentOS 7.1 Linux 3.10.0 x86_64 Intel y y y y
Linux 2.6.32-431.11.2.el6.ppc64 y y y y
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 g95 (GCC 4.0.3 (g95 0.94!)
#1 SMP x86_64 GNU/Linux
(mayll)
Debian8.4.0 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1 x86_64 GNU/Linux
gcc (Debian 4.9.2-10) 4.9.2
GNU Fortran (Debian 4.9.2-10) 4.9.2
(cmake and autotools)
Fedora24 4.7.2-201.fc24.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux
gcc (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)
CentOS 7.2 3.10.0-327.28.2.el7.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4)
GNU Fortran (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4)
(cmake and autotools)
Ubuntu 16.04 4.4.0-38-generic #62-Ubuntu SMP x86_64 GNU/Linux
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0
GNU Fortran (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0
(cmake and autotools)
Known Problems
==============
The dynamically loaded plugin test libraries require undefined references
to HDF5 functions to be resolved at runtime in order to function properly.
With autotools on CYGWIN this results in build errors, and we have not
found a solution that satisfies both. Therefore the dynamically loaded
plugin tests have been disabled on CYGWIN.
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.
|
