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|
HDF5 version 1.8.8-snap7 currently under development
================================================================================
INTRODUCTION
============
This document describes the differences between HDF5-1.8.7 and
HDF5 1.8.8-*, and contains information on the platforms tested and
known problems in HDF5-1.8.8-*.
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 1.8.8 source code, documentation, and additional materials
can be found on the HDF5 web page at:
http://www.hdfgroup.org/products/hdf5/
The HDF5 1.8.8 release can be obtained from:
http://www.hdfgroup.org/HDF5/release/obtain5.html
User documentation for 1.8.8 can be accessed directly at this location:
http://www.hdfgroup.org/HDF5/doc/
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:
http://www.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 1.8.8 (current
release) versus Release 1.8.7":
http://www.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
========
- New Features
- Support for New Platforms, Languages, and Compilers
- Bug Fixes since HDF5-1.8.7
- Platforms Tested
- Supported Configuration Features Summary
- Known Problems
New Features
============
Configuration
-------------
- None
Library
-------
- None
Parallel Library
----------------
- The library added two new dataset transfer property to control whether
to fill 0xff in the destination data or convert to the destination data
when overflow happens to ENUM data (Issue 7579). The two new functions
are H5Pset(get)_enum_conv_overflow. (SLU - 2011/05/27)
- H5Tcreate now supports string type (fixed-length and variable-length).
(SLU - 2011/05/20)
Tools
-----
- None
High-Level APIs
---------------
- None
F90 API
-------
- None
C++ API
-------
- None
Support for New Platforms, Languages, and Compilers
===================================================
- None
Bug Fixes since HDF5-1.8.7
==========================
Configuration
-------------
- The --enable-h5dump-packed-bits configure option has been removed,
as the h5dump code that this option conditionally enabled is now always
compiled into h5dump. Please refer to the h5dump reference manual for
usage of the packed bits feature. (MAM - 2011/06/23)
- Configure now uses the same flags and symbols in its tests that are
used to build the library.
- On linux we now link to the bsd_compat library, as per the gcc
manual, since we define _BSD_SOURCE.
Library
-------
- Corrected internal error in library where objects that use named
datatypes and were accessed from two different file IDs could confuse
the two and cause erroneous failures. This addresses Jira issue #7638.
(QAK - 2011/07/18)
- In v1.6 library, there was EOA for the whole MULTI file saved in the
super block. We took it out in v1.8 library because it's meaningless
for the MULTI file. v1.8 library saves the EOA for the metadata file,
instead. But this caused some backward compatibility problem.
v1.8 library couldn't open the file created with v1.6 library. We
fixed the problem by checking the EOA value to detect the file
created with v1.6 library. (SLU - 2011/6/22)
- When a dataset had filters and reading data failed, the error message
didn't say which filter isn't registered. It's fixed now. (SLU - 2011/6/3)
Parallel Library
----------------
- None
Tools
-----
- Fixed h5diff to display instructive error message and exit with 1
when mutually exclusive options (-d, -p and --use-system-epsilon)
are used together. HDFFV-7600 (JKM 07/07/2011)
- Fixed h5dump to display the first line of each element into correct
position for multiple dimention array type.
Before this fix, the first line of each element in array were
displayed after the last line of previous element without
moving to the next line (+indentation).
Bug #HDFFV-5878 (JKM 06/15/2011)
- Fixed h5dump to display correct value for H5T_STD_I8LE dataset
on a system (ppc64, linux, Big-Endian, clustering).
Bug #HDFFV-7594 (ABERT & JKM 05/12/2011)
- Fixed h5diff to compare file itself correctly. Previously h5diff
reported either different or not compatible in certain cases even
comparing file itself. This fix also improve performance when
comparing same target objects through verifying the obj&file
addresses before comparing the details in the objects (ex: datasets
or attributes) Bug #HDFFV-5928 (XCAO & JKM 05/06/2011)
F90 API
------
- None
C++ API
------
- None
High-Level APIs:
------
- None
Fortran High-Level APIs:
------
- None
Platforms Tested
================
The following platforms and compilers have been tested for this release.
FreeBSD 8.2-STABLE i386 gcc 4.2.1 [FreeBSD] 20070719
(loyalty) g++ 4.2.1 [FreeBSD] 20070719
gcc 4.6.1 20110422
g++ 4.6.1 20110422
gfortran 4.6.1 20110422
FreeBSD 8.2-STABLE amd64 gcc 4.2.1 [FreeBSD] 20070719
(freedom) g++ 4.2.1 [FreeBSD] 20070719
gcc 4.6.1 20110422
g++ 4.6.1 20110422
gfortran 4.6.1 20110422
Linux 2.6.18-194.3.1.el5PAE gcc (GCC) 4.1.2 and 4.4.2
#1 SMP i686 i686 i386 GNU Fortran (GCC) 4.1.2 20080704
(jam) (Red Hat 4.1.2-48) and 4.4.2
PGI C, Fortran, C++ 10.4-0 32-bit
PGI C, Fortran, C++ 10.6-0 32-bit
Intel(R) C Compiler for 32-bit
applications, Version 11.1
Intel(R) C++ Compiler for 32-bit
applications, Version 11.1
Intel(R) Fortran Compiler for 32-bit
applications, Version 11.1
MPICH mpich2-1.3.1 compiled with
gcc 4.1.2 and gfortran 4.1.2
Linux 2.6.18-238.12.1.el5 gcc 4.1.2 and 4.4.2
#1 SMP x86_64 GNU/Linux GNU Fortran (GCC) 4.1.2 20080704
(koala) (Red Hat 4.1.2-46) and 4.4.2
tested for both 32- and 64-bit binaries
Intel(R) C, C++, Fortran Compilers for
applications running on Intel(R) 64,
Version 11.1.
PGI C, Fortran, C++ Version 9.0-4
for 64-bit target on x86-64
MPICH mpich2-1.3.1 compiled with
gcc 4.1.2 and gfortran 4.1.2
SGI ProPack 7 Linux Intel(R) C++ Version 11.1 20100806
2.6.32.19-0.3.1.1982.0.PTF- Intel(R) Fortran Version 11.1 20100806
default #1 SMP SGI MPT 2.01
SGI Altix UV
(NCSA ember)
SunOS 5.10 32- and 64-bit Sun C 5.9 Sun OS_sparc Patch 124867-16
(linew) Sun Fortran 95 8.3 Sun OS_sparc Patch 127000-13
Sun C++ 5.9 Sun OS_sparc Patch 124863-62
Sun C 5.10 SunOS_sparc Patch 141861-07
Sun Fortran 95 8.4 SunOS_sparc Patch 128231-06
Sun C++ 5.10 SunOS_sparc 128228-11
Windows XP Visual Studio 2008 w/ Intel Fortran 10.1 (project files)
Visual Studio 2008 w/ Intel Fortran 11.1 (cmake)
Visual Studio 2010 (cmake)
Cygwin(1.7.7 native gcc(4.3.4) compiler and gfortran)
Windows XP x64 Visual Studio 2008 w/ Intel Fortran 10.1 (project files)
Visual Studio 2008 w/ Intel Fortran 11.1 (cmake)
Visual Studio 2010 (cmake)
Cygwin(1.7.7 native gcc(4.3.4) compiler and gfortran)
Windows Vista Visual Studio 2008 w/ Intel Fortran 11.1 (cmake)
Windows Vista x64 Visual Studio 2008 w/ Intel Fortran 11.1 (cmake)
Windows 7 Visual Studio 2008 w/ Intel Fortran 11.1 (cmake)
Windows 7 x64 Visual Studio 2008 w/ Intel Fortran 11.1 (cmake)
Mac OS X 10.6.3 (Intel 64-bit) i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1
Darwin Kernel Version 10.3.1 GNU Fortran (GCC) 4.5.0 20090910
Intel C, C++ and Fortran compilers 11.1 20100806
Mac OS X 10.6.4 (Intel 32-bit) i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1
Darwin Kernel Version 10.4.0 GNU Fortran (GCC) 4.6.0 20101106
Intel C, C++ and Fortran compilers 12.0.0 20101110
Mac OS X 10.6.4 (Intel 64-bit) i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5659)
Darwin Kernel Version 10.6.0 GNU Fortran (GCC) 4.5.0 20090910
Intel C, C++ and Fortran compilers 11.1 20100806
Fedora 12 2.6.32.16-150.fc12.ppc64 #1 SMP ppc64 GNU/Linux
gcc (GCC) 4.4.4 20100630 (Red Hat 4.4.4-10)
GNU Fortran (GCC) 4.4.4 20100630 (Red Hat 4.4.4-10)
Debian6.01 2.6.32-5-686 #1 SMP i686 GNU/Linux
gcc (Debian 4.4.5-8) 4.4.5
GNU Fortran (Debian 4.4.5-8) 4.4.5
Debian6.01 2.6.32-5-amd64 #1 SMP x86_64 GNU/Linux
gcc (Debian 4.4.5-8) 4.4.5
GNU Fortran (Debian 4.4.5-8) 4.4.5
Fedora14 2.6.35.12-88.fc14.i686.PAE #1 SMP i686 i686 i386 GNU/Linux
gcc (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)
GNU Fortran (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)
Fedora14 2.6.35.12-88.fc14.x86_64 #1 SMP x86_64 x86_64 x86_64 GNU/Linux
gcc (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)
GNU Fortran (GCC) 4.5.1 20100924 (Red Hat 4.5.1-4)
SUSE 11.4 2.6.37.1-1.2-desktop #1 SMP PREEMPT i686 i686 i386 GNU/Linux
gcc (SUSE Linux) 4.5.1 20101208
GNU Fortran (SUSE Linux) 4.5.1 20101208
SUSE 11.4 2.6.37.1-1.2-desktop #1 SMP PREEMPT x86_64 x86_64 x86_64 GNU/Linux
gcc (SUSE Linux) 4.5.1 20101208
GNU Fortran (SUSE Linux) 4.5.1 20101208
Ubuntu 10.10 2.6.35-28-generic #50-Ubuntu SMP i686 GNU/Linux
gcc (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5
GNU Fortran (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5
Ubuntu 10.10 2.6.35-28-generic #50-Ubuntu SMP x86_64 GNU/Linux
gcc (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5
GNU Fortran (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5
OpenVMS Alpha 8.3 HP C V7.3-009
HP Fortran V8.2-104679-48H9K
HP C++ V7.3-009
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 parallel
Solaris2.10 32-bit n y n y y y
Solaris2.10 64-bit n y n y y y
Windows XP n y(4) n y y y
Windows XP x64 n y(4) n y y y
Windows Vista n y(4) n y y y
Windows Vista x64 n y(4) n y y y
OpenVMS Alpha n y n y y n
Mac OS X 10.6 Intel n y n y y y
FreeBSD 8.2-STABLE 32- and 64-bit n x n x y y
CentOS 5.5 Linux 2.6.18-194 i686 GNU (1)W y y(2) y y y y
CentOS 5.5 Linux 2.6.18-194 i686 Intel W n y n y y n
CentOS 5.5 Linux 2.6.18-194 i686 PGI W n y n y y n
CentOS 5.5 Linux 2.6.16 x86_64 GNU (1) W y y(3) y y y y
CentOS 5.5 Linux 2.6.16 x86_64 Intel W n y n y y n
CentOS 5.5 Linux 2.6.16 x86_64 PGI W n y n y y y
RedHat EL4 2.6.18 Xeon Lustre C y y y y y n
Fedora 12 Linux 2.6.32.16-150.fc12.ppc64 n y n y y y
SGI Linux 2.6.32.19 y y y y y y
Platform Shared Shared Shared Thread-
C libs F90 libs C++ libs safe
Solaris2.10 32-bit y y y y
Solaris2.10 64-bit y y y y
Windows XP y y(4) y n
Windows XP x64 y y(4) y n
Windows Vista y y(4) y y
Windows Vista x64 y y(4) y y
OpenVMS Alpha n n n n
Mac OS X 10.6 y(5) n y n
FreeBSD 8.2-STABLE 32- and 64-bit y x x y
CentOS 5.5 Linux 2.6.18-128 i686 GNU (1)W y y(2) y y
CentOS 5.5 Linux 2.6.18-128 i686 Intel W y y y n
CentOS 5.5 Linux 2.6.18-128 i686 PGI W y y y n
CentOS 5.5 Linux 2.6.16 x86_64 GNU (1) W y y y y
CentOS 5.5 Linux 2.6.16 x86_64 Intel W y y y n
CentOS 5.5 Linux 2.6.16 x86_64 PGI W y y y n
RedHat EL4 2.6.18 Xeon Lustre C y y y n
Fedora 12 Linux 2.6.32.16-150.fc12.ppc64 y y y y
SGI Linux 2.6.32.19 y y y y
(1) Fortran compiled with gfortran.
(2) With PGI and Absoft compilers.
(3) With PGI compiler for Fortran.
(4) Using Visual Studio 2008 w/ Intel Fortran 10.1 (Cygwin shared libraries are not supported)
(5) C and C++ shared libraries will not be built when Fortran is enabled.
Compiler versions for each platform are listed in the preceding
"Platforms Tested" table.
Known Problems
==============
* After the shared library support is fixed for some bugs, it is discovered
that "make prefix=XXX install" no longer work for shared libraries. It
still works correctly for static libraries. Therefore, if you want to
install the HDF5 shared libraries in location such as /usr/local/hdf5,
you need to specify it via the --prefix option during configure time.
E.g, ./configure --prefix=/usr/local/hdf5 ...
(AKC - 2011/05/07 HDFFV-7583)
* The parallel test, t_shapesame, in testpar/, may run for a long time and may
get terminated by the alarm signal. If that happens, one can increase the
alarm seconds (default is 1200 seconds = 20 minutes) by setting the
environment variable, $HDF5_ALARM_SECONDS, to a larger value such as 3600
which means 60 minutes = 1 hour. Beware that the t_shapesame test may fail
in some systems (see the "While working on the 1.8.6 release..." problem
below). If it does, it will waste more time if $HDF5_ALARM_SECONDS is set
to a larger value. (AKC - 2011/05/07)
* Shared Fortran libraries are not quite working on AIX. While they are
generated when --enable-shared is specified, the fortran and hl/fortran
tests fail. We are looking into the issue. HL and C++ shared libraries
should now be working as intended, however. (MAM - 2011/04/20)
* The --with-mpe configure option does not work with Mpich2. AKC - 2011/03/10
* If parallel gmake (e.g., gmake -j 4) is used, the "gmake clean" command
sometimes fails in the perform directory due to the attempt to remove the
executable of h5perf or h5perf_serial by two "parallel" commands. This error
has no consequence on the functionality of the HDF5 library or install. It
is fixed in the next release. AKC - 2011/01/25 ??????? 4.18.2011. sent question to albert re: has this been fixed in 1.8.7?????????????????????????
* While working on the 1.8.6 release of HDF5, a bug was discovered that can
occur when reading from a dataset in parallel shortly after it has been
written to collectively. The issue was exposed by a new test in the parallel
HDF5 test suite, but had existed before that. We believe the problem lies with
certain MPI implementations and/or file systems.
We have provided a pure MPI test program, as well as a standalone HDF5
program, that can be used to determine if this is an issue on your system.
They should be run across multiple nodes with a varying number of processes.
These programs can be found at:
http://www.hdfgroup.org/ftp/HDF5/examples/known_problems/
* The library's test dt_arith.c showed a compiler's rounding problem on
Cygwin when converting from unsigned long long to long double. The
library's own conversion works fine. We defined a macro for Cygwin to
skip this test until we can solve the problem. Please see bug #1813.
SLU - 2010/5/5
* All the VFL drivers aren't backward compatible. In H5FDpublic.h, the
structure H5FD_class_t changed in 1.8. There is new parameter added to
get_eoa and set_eoa callback functions. A new callback function
get_type_map was added in. The public function H5FDrealloc was taken
out in 1.8. The problem only happens when users define their own driver
for 1.6 and try to plug in 1.8 library. Because there's only one user
complaining about it, we (Elena, Quincey, and I) decided to leave it as
it is (see bug report #1279). Quincey will make a plan for 1.10.
SLU - 2010/2/2
* MinGW has a missing libstdc++.dll.a library file and will not successfully link
C++ applications/tests. Do not use the enable-cxx configure option. Read all of
the INSTALL_MINGW.txt file for all restrictions. ADB - 2009/11/11
* The PathScale MPI implementation, accessing a Panasas file system, would
cause H5Fcreate() with H5F_ACC_EXCL to fail even when the file does not
exist. This is due to the MPI_File_open() call failing if the mode has
the MPI_MODE_EXCL bit set. (See bug 1468 for details.) AKC - 2009/8/11
* Parallel tests failed with 16 processes with data inconsistency at testphdf5
/ dataset_readAll. Parallel tests also failed with 32 and 64 processes with
collective abort of all ranks at t_posix_compliant / allwrite_allread_blocks
with MPI IO. CMC - 2009/04/28
* For Red Storm, a Cray XT3 system, the tools/h5ls/testh5ls.sh and
tools/h5copy/testh5copy.sh will fail some of its sub-tests. These sub-tests
are expected to fail and should exit with a non-zero code but the yod
command does not propagate the exit code of the executables. Yod always
returns 0 if it can launch the executable. The test suite shell expects
a non-zero for this particular test, therefore it concludes the test has
failed when it receives 0 from yod. Skip all the "failing" test for now
by changing them as following.
* The STDIO VFD does not work on some architectures, possibly due to 32/64
bit or large file issues. The basic STDIO VFD test is known to fail on
64-bit SunOS 5.10 on SPARC when built with -m64 and 32-bit OS X/Darwin
10.7.0. The STDIO VFD test has been disabled while we investigate and
a fix should appear in 1.8.8.
======== Original tools/h5ls/testh5ls.sh =========
TOOLTEST tgroup-1.ls 1 -w80 -r -g tgroup.h5
======== Change to ===============================
echo SKIP TOOLTEST tgroup-1.ls 1 -w80 -r -g tgroup.h5
==================================================
======== Original tools/h5copy/testh5copy.sh =========
TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -v -s grp_dsets -d grp_rename
TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -v -s grp_dsets -d /grp_rename/grp_dsets
TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -vp -s /grp_dsets -d /E/F/grp_dsets
TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -vp -s /grp_nested -d /G/H/grp_nested
H5LSTEST $FILEOUT
======== Change to ===============================
echo SKIP TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -v -s grp_dsets -d grp_rename
echo SKIP TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -v -s grp_dsets -d /grp_rename/grp_dsets
echo SKIP TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -vp -s /grp_dsets -d /E/F/grp_dsets
echo SKIP TOOLTEST_FAIL -i $TESTFILE -o $FILEOUT -vp -s /grp_nested -d /G/H/grp_nested
echo SKIP H5LSTEST $FILEOUT
==================================================
AKC - 2008/11/10
* For Red Storm, a Cray XT3 system, the yod command sometimes gives the
message, "yod allocation delayed for node recovery". This interferes with
test suites that do not expect to see this message. See the section of "Red
Storm" in file INSTALL_parallel for a way to deal with this problem.
AKC - 2008/05/28
* On an Intel 64 Linux cluster (RH 4, Linux 2.6.9) with Intel 10.0 compilers,
use -mp -O1 compilation flags to build the libraries. A higher level of
optimization causes failures in several HDF5 library tests.
* On mpich 1.2.5 and 1.2.6, if more than two processes contribute no IO and
the application asks to do collective IO, we have found that when using 4
processors, a simple collective write will sometimes be hung. This can be
verified with t_mpi test under testpar.
* A dataset created or rewritten with a v1.6.3 library or after cannot be read
with the v1.6.2 library or before when the Fletcher32 EDC filter is enabled.
There was a bug in the calculation of the Fletcher32 checksum in the
library before v1.6.3; the checksum value was not consistent between big-
endian and little-endian systems. This bug was fixed in Release 1.6.3.
However, after fixing the bug, the checksum value was no longer the same as
before on little-endian system. Library releases after 1.6.4 can still read
datasets created or rewritten with an HDF5 library of v1.6.2 or before.
SLU - 2005/6/30
* On IBM AIX systems, parallel HDF5 mode will fail some tests with error
messages like "INFO: 0031-XXX ...". This is from the command `poe'.
Set the environment variable MP_INFOLEVEL to 0 to minimize the messages
and run the tests again.
The tests may fail with messages like "The socket name is already in use",
but HDF5 does not use sockets. This failure is due to problems with the
poe command trying to set up the debug socket. To resolve this problem,
check to see whether there are many old /tmp/s.pedb.* files staying around.
These are sockets used by the poe command and left behind due to failed
commands. First, ask your system administrator to clean them out.
Lastly, request IBM to provide a means to run poe without the debug socket.
* The --enable-static-exec configure flag will only statically link libraries
if the static version of that library is present. If only the shared version
of a library exists (i.e., most system libraries on Solaris, AIX, and Mac,
for example, only have shared versions), the flag should still result in a
successful compilation, but note that the installed executables will not be
fully static. Thus, the only guarantee on these systems is that the
executable is statically linked with just the HDF5 library.
* There is also a configure error on Altix machines that incorrectly reports
when a version of Szip without an encoder is being used.
* On cobalt, an SGI Altix SMP ia64 system, Intel compiler version 10.1 (which
is the default on that system) does not work properly and results in
failures during make check (in a static build) and make installcheck (during
a shared build). This appears to be a compiler optimization problem.
Reducing optimization by setting CFLAGS to -O1 or below resolves the issue.
Alternatively, using a newer version of the compiler (11.0) also works as
intended. MAM - 2010/06/01
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