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hdf5/release_docs/RELEASE.txt
Allen Byrne 310b42e35a HDFFV-10876 Merge from develop
2019-12-09 15:44:38 -06:00

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HDF5 version 1.12.0-alpha0 currently under development
================================================================================
INTRODUCTION
This document describes the new features introduced in the HDF5 1.12.0 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 the
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/
More information about the new features can be found at:
https://portal.hdfgroup.org/display/HDF5/New+Features+in+HDF5+Release+1.12
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
- Major Bug Fixes since HDF5-1.10.0
- Supported Platforms
- Tested Configuration Features Summary
- More Tested Platforms
- Known Problems
- CMake vs. Autotools installations
New Features
============
Configuration:
-------------
- Update CMake for VS2019 support
CMake added support for VS2019 in version 3.15. Changes to the CMake
generator setting required changes to scripts. Also updated version
references in CMake files as necessary.
(ADB - 2019/11/18, HDFFV-10962)
Library:
--------
- Virtual Object Layer (VOL)
In this major HDF5 release we introduce HDF5 Virtual Object Layer (VOL).
VOL is an abstraction layer within the HDF5 library that enables different
methods for accessing data and objects that conform to the HDF5 data model.
The VOL layer intercepts all HDF5 API calls that potentially modify data
on disk and forwards those calls to a plugin "object driver". The data on
disk can be a different format than the HDF5 format. For more information
about VOL we refer the reader to the following documents (under review):
VOL HDF5 APIs
https://portal.hdfgroup.org/display/HDF5/Virtual+Object++Layer
VOL Documentation
https://bitbucket.hdfgroup.org/projects/HDFFV/repos/hdf5doc/browse/RFCs/HDF5/VOL
Repository with VOL plugins
https://bitbucket.hdfgroup.org/projects/HDF5VOL
- Enhancements to HDF5 References
HDF5 references were extended to support attributes, and object and dataset
selections that reside in another HDF5 file. For more information including
a list of new APIs, see
https://portal.hdfgroup.org/display/HDF5/Update+to+References
Current known limitations for references in this release:
• h5dump will fail to display references on big-endian machines.
- Add new public function H5Sselect_adjust.
This function shifts a dataspace selection by a specified logical offset
within the dataspace extent. This can be useful for VOL developers to
implement chunked datasets.
(NAF - 2019/11/18)
- Add new public function H5Sselect_project_intersection.
This function computes the intersection between two dataspace selections
and projects that intersection into a third selection. This can be useful
for VOL developers to implement chunked or virtual datasets.
(NAF - 2019/11/13, ID-148)
- Add new public function H5VLget_file_type.
This function returns a datatype equivalent to the supplied datatype but
with the location set to be in the file. This datatype can then be used
with H5Tconvert to convert data between file and in-memory representation.
This funcition is intended for use only by VOL connector developers.
(NAF - 2019/11/08, ID-127)
- New S3 and HDFS Virtual File Drivers (VFDs)
This release has two new VFDs. The S3 VFD allows accessing HDF5 files on
AWS S3 buckets. HDFS VFD allows accessing HDF5 files stored on Apache HDFS.
See https://portal.hdfgroup.org/display/HDF5/Virtual+File+Drivers+-+S3+and+HDFS
for information on enabling those drivers and using those APIs.
Below are specific instructions for enabling S3 VFD on Windows:
Fix windows requirements and java tests. Windows requires CMake 3.13.
- Install openssl library (with dev files);
from "Shining Light Productions". msi package preferred.
- PATH should have been updated with the installation dir.
- set ENV variable OPENSSL_ROOT_DIR to the installation dir.
- set ENV variable OPENSSL_CONF to the cfg file, likely %OPENSSL_ROOT_DIR%\bin\openssl.cfg
- Install libcurl library (with dev files);
- download the latest released version using git: https://github.com/curl/curl.git
- Open a Visual Studio Command prompt
- change to the libcurl root folder
- run the "buildconf.bat" batch file
- change to the winbuild directory
- nmake /f Makefile.vc mode=dll MACHINE=x64
- copy libcurl-vc-x64-release-dll-ipv6-sspi-winssl dir to C:\curl (installation dir)
- set ENV variable CURL_ROOT to C:\curl (installation dir)
- update PATH ENV variable to %CURL_ROOT%\bin (installation bin dir).
- the aws credentials file should be in %USERPROFILE%\.aws folder
- set the ENV variable HDF5_ROS3_TEST_BUCKET_URL to the s3 url for the
s3 bucket containing the HDF5 files to be accessed.
Other improvements and changes:
- Hyperslab selection code was reworked to improve performance, getting more
than 10x speedup in some cases.
- The HDF5 Library was enhanced to open files with Unicode names on Windows.
- Deprecated H5Dvlen_reclaim() and replaced it with H5Treclaim().
This routine is meant to be used when resources are internally allocated
when reading data, i.e. when using either vlen or new reference types.
This is applicable to both attribute and dataset reads.
- h5repack was fixed to repack datasets with external storage
to other types of storage.
Support for new platforms, languages and compilers.
=======================================
- Added spectrum-mpi with clang, gcc and xl compilers on Linux 3.10.0
- Added OpenMPI 3.1 and 4.0 with clang, gcc and Intel compilers on Linux 3.10.0
- Added cray-mpich/PrgEnv with gcc and Intel compilers on Linux 4.14.180
- Added spectrum mpi with clang, gcc and xl compilers on Linux 4.14.0
Major Bug Fixes since HDF5-1.10.0 release
==================================
- For major bug fixes please see HISTORY-1_10_0-1_12_0.txt file
Supported Platforms
===================
Linux 2.6.32-696.16.1.el6.ppc64 gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
#1 SMP ppc64 GNU/Linux g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
(ostrich) GNU Fortran (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
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, 5.2.0, 7.1.0
Intel(R) C (icc), C++ (icpc), Fortran (icc)
compilers:
Version 17.0.0.098 Build 20160721
MPICH 3.1.4
Linux-3.10.0- spectrum-mpi/rolling-release with cmake>3.10 and
862.14.4.1chaos.ch6.ppc64le clang/3.9,8.0
#1 SMP ppc64le GNU/Linux gcc/7.3
(ray) xl/2016,2019
Linux 3.10.0- openmpi/3.1,4.0 with cmake>3.10 and
957.12.2.1chaos.ch6.x86_64 clang 5.0
#1 SMP x86_64 GNU/Linux gcc/7.3,8.2
(serrano) intel/17.0,18.0/19.0
Linux 3.10.0- openmpi/3.1/4.0 with cmake>3.10 and
1062.1.1.1chaos.ch6.x86_64 clang/3.9,5.0,8.0
#1 SMP x86_64 GNU/Linux gcc/7.3,8.1,8.2
(chama,quartz) intel/16.0,18.0,19.0
Linux 4.4.180-94.100-default cray-mpich/7.7.6 with PrgEnv-*/6.0.5, cmake>3.10 and
#1 SMP x86_64 GNU/Linux gcc/7.2.0,8.2.0
(mutrino) intel/17.0,18.0
Linux 4.14.0- spectrum-mpi/rolling-release with cmake>3.10 and
49.18.1.bl6.ppc64le clang/6.0,8.0
#1 SMP ppc64le GNU/Linux gcc/7.3
(lassen) xl/2019
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 2015 w/ Intel Fortran 18 (cmake)
Windows 7 x64 Visual Studio 2015 w/ Intel C, Fortran 2018 (cmake)
Visual Studio 2015 w/ MSMPI 8 (cmake)
Windows 10 Visual Studio 2015 w/ Intel Fortran 18 (cmake)
Windows 10 x64 Visual Studio 2015 w/ Intel Fortran 18 (cmake)
Visual Studio 2017 w/ Intel Fortran 19 (cmake)
Visual Studio 2019 w/ Intel Fortran 19 (cmake)
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 7.3.0 from Xcode 7.3
64-bit gfortran GNU Fortran (GCC) 5.2.0
(osx1011dev/osx1011test) Intel icc/icpc/ifort version 16.0.2
Mac OS High Sierra 10.13.6 Apple LLVM version 10.0.0 (clang/clang++-1000.10.44.4)
64-bit gfortran GNU Fortran (GCC) 6.3.0
(bear) Intel icc/icpc/ifort version 19.0.4
Mac OS Mojave 10.14.6 Apple LLVM version 10.0.1 (clang/clang++-1001.0.46.4)
64-bit gfortran GNU Fortran (GCC) 6.3.0
(bobcat) Intel icc/icpc/ifort version 19.0.4
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 ?
Mac OS X Yosemite 10.10.5 64-bit n y/y n y y ?
Mac OS X El Capitan 10.11.6 64-bit n y/y n y y ?
CentOS 6.7 Linux 2.6.18 x86_64 GNU n y/y n y y y
CentOS 6.7 Linux 2.6.18 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 7.2 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/n 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 6.7 Linux 2.6.18 x86_64 GNU y y y y
CentOS 6.7 Linux 2.6.18 x86_64 Intel y y y n
CentOS 6.7 Linux 2.6.32 x86_64 PGI y y y n
CentOS 7.2 Linux 2.6.32 x86_64 GNU y y y n
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 4.9.3, 5.3.0, 6.2.0
PGI C, Fortran, C++ for 64-bit target on
x86-64;
Version 17.10-0
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
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)
GCC Version 7.1.0
OpenMPI 3.0.0-GCC-7.2.0-2.29
Intel(R) C (icc) and C++ (icpc) compilers
Version 17.0.0.098 Build 20160721
with NAG Fortran Compiler Release 6.1(Tozai)
PGI C (pgcc), C++ (pgc++), Fortran (pgf90)
compilers:
Version 18.4, 19.4
MPICH 3.3
OpenMPI 2.1.5, 3.1.3, 4.0.0
Fedora30 5.3.11-200.fc30.x86_64
#1 SMP x86_64 GNU/Linux GNU gcc (GCC) 9.2.1 20190827 (Red Hat 9.2.1 20190827)
GNU Fortran (GCC) 9.2.1 20190827 (Red Hat 9.2.1 20190827)
(cmake and autotools)
Known Problems
==============
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.
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.
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