HDF5 version 1.6.1-post7 released on Sat Dec 13 15:09:02 CST 2003 ================================================================================ INTRODUCTION This document describes the differences between HDF5-1.6.1 and HDF5-1.6.1-post*, and contains information on the platforms tested and known problems in HDF5-1.6.1-post*. For more details check the HISTORY.txt file in the HDF5 source. The HDF5 documentation can be found on the NCSA ftp server (ftp.ncsa.uiuc.edu) in the directory: /HDF/HDF5/docs/ For more information look at the HDF5 home page at: http://hdf.ncsa.uiuc.edu/HDF5/ If you have any questions or comments, please send them to: hdfhelp@ncsa.uiuc.edu CONTENTS - New Features - Support for new platforms and languages - Bug Fixes since HDF5-1.6.1 - Documentation - Platforms Tested - Known Problems New Features ============ Configuration: -------------- - Default of $prefix is changed to $PWD/hdf5 so that multiple builds using --srcdir is possible in the same machine. AKC - 2003/12/1 Library: -------- - Added H5Iget_ref, H5Iinc_ref and H5Idec_ref routines to the C library and the FORTRAN wrapper. See the reference manual for a full description of these new routines. QAK - 2003/12/11 Parallel Library: ----------------- - Added parallel test, test_mpio_1wMr, which tests if the underlaying parallel I/O system is conforming to the POSIX write/read requirement. This version includes options of using atomicity and file-sync. AKC - 2003/11/27 Tools: ------ - Added metadata benchmark (perform/perf_meta). SLU - 2003/10/03 C++ API: -------- Support for new platforms, languages and compilers. ======================================= Bug Fixes since HDF5-1.6.1 release ================================== Library ------- - Fixed bug where scalar dataspaces for attributes were reporting as simple dataspaces. QAK - 2003/12/13 - Fixed problem with selection offsets of hyperslab selections in chunked datasets causing the library to go into an infinite loop. QAK - 2003/12/13 - Fixed H5Giterate to avoid re-using index parameter after iteration callback has been called (allows iteration callback to modify the index parameter itself). QAK - 2003/12/06 - Fixed various floating-point conversion problems, including a change which could corrupt data when converting from double->float. QAK - 2003/11/24 - Changed "single process" metadata writing in library to collective I/O by all processes, in order to guarantee correct data being written with MPI-I/O. QAK - 2003/11/20 - Fixed problems with fill values and variable-length types and also I/O on VL values that were set to NULL. QAK - 2003/11/08 - Fixed problems with MPI datatypes that caused ASCI Q machine to hang. QAK - 2003/10/28 - Removed HDF5_MPI_PREFER_DERIVED_TYPES environment variable support, since it had no benefit. QAK - 2003/10/28 - Single hyperslab selections (which were set with only one call to H5Sselect_hyperslab) that had dimensions that could be "flattened" but were interspersed with dimensions that could not be flattened were not correctly handled, causing core dumps. QAK - 2003/10/25 - Avoid metadata cache from preempting current dataset object header when looking up information about the named datatype that the dataset uses. QAK - 2003/10/20 Configuration ------------- Performance ------------- - More optimizations to inner loops of datatype conversions for integers and floats which give a 10-50% speedup. QAK - 2003/11/07 - Hoisted invariant 'if/else's out of inner datatype conversion loop for integer and floating-point values, giving about a 20% speedup. QAK - 2003/10/20 Tools ----- - Fixed h5redeploy which sometimes complain too many argument for the test command. (The complain did not hinder the h5redploy to proceed correctly.) AKC - 2003/11/03 Documentation ------------- Documentation ============= Platforms Tested ================ AIX 5.1 (32 and 64-bit) xlc 6.0.0.2 xlf 8.1.0.3 xlC 6.0.0.4 xlc 5.0.2.5 xlf 7.1.1.2 xlC 5.0.2.5 mpcc_r 5.0.2.5 mpxlf_r 7.1.1.2 poe 3.2.0.10 Cray T3E sn6606 2.0.6.08 Cray Standard C Version 6.6.0.2 Cray Fortran Version 3.6.0.2 Cray SV1 sn9617 10.0.1.2 Cray Standard C Version 6.6.0.2 Cray Fortran Version 3.6.0.2 Cray T90IEEE 10.0.1.01y Cray Standard C Version 6.4.0.2.3 Cray Fortran Version 3.4.0.3 FreeBSD 4.9 gcc 2.95.4 g++ 2.95.4 HP-UX B.11.00 HP C HP92453-01 A.11.01.20 HP F90 v2.4 HP ANSI C++ B3910B A.03.13 HP MPI 01.07.00.00 IRIX 6.5 MIPSpro cc 7.3.1.2m IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1.3m F90 MIPSpro 7.3.1.3m (64 only) MPIch 1.2.4 Linux 2.4.18 gcc 2.96, 3.2.2, 3.3.1 g++ 3.2.2, 3.2.3 Intel(R) C++ Version 7.1 Intel(R) Fortran Compiler Version 7.1 PGI compilers (pgcc, pgf90, pgCC) version 4.0-2 MPIch 1.2.4 Linux 2.4.20-8 gcc 3.2.2 OSF1 V5.1 Compaq C V6.4-014 Compaq C V6.3-027 Compaq Fortran V5.5-2602 Compaq C++ V6.5-030 MPI_64bit_R5 g++ version 3.0 for C++ SunOS 5.7(32 and 64 bit) WorkShop Compilers 5.0 98/12/15 C 5.0 (Solaris 2.7) WorkShop Compilers 5.0 98/12/15 C++ 5.0 WorkShop Compilers 5.0 98/10/25 FORTRAN 90 2.0 Patch 107356-04 SunOS 5.8(32 and 64 bit) Sun WorkShop 6 update 2 C 5.3 (Solaris 2.8) Sun WorkShop 6 update 2 Fortran 90 Sun WorkShop 6 update 2 C++ 5.3 TFLOPS r1.0.4 v4.4.0 i386 pgcc Rel 3.1-4i with mpich-1.2.4 with local modifications IA-32 Linux 2.4.9 gcc 2.96 Intel(R) C++ Version 7.0 Intel(R) Fortran Compiler Version 7.0 IA-64 Linux 2.4.16 ia64 gcc version 2.96 20000731 Intel(R) C++ Version 7.0 Intel(R) Fortran Compiler Version 7.0 Windows 2000 (NT5.0) MSVC++ 6.0 DEC Visual Fortran 6.0 Intel C and F90 compilers version 7.1 Code Warrior 8.0 Windows XP MSVC++.NET MAC OS X Darwin 6.8 gcc and g++ Apple Computer, Inc. GCC version 1175, based on gcc version 3.1 Supported Configuration Features Summary ======================================== In the tables below y = tested and supported n = not supported or not tested in this release x = not working in this release dna = does not apply ( ) = footnote appears below second table Platform C C F90 F90 C++ Shared zlib parallel parallel libraries (4) Solaris2.7 64-bit y y (1) y y (1) y y y Solaris2.7 32-bit y y (1) y y (1) y y y Solaris2.8 64-bit y y (1) y y (1) y y y Solaris2.8 32-bit y y y y (1) y y y IRIX6.5 y y (1) n n n y y IRIX64_6.5 64-bit y y (2) y y y y y IRIX64_6.5 32-bit y y (2) n n n y y HPUX11.00 y y (1) y y y y y OSF1 v5.1 y y y y y y y T3E y y (5) y y (5) n n y SV1 y y (5) y y (5) n n y T90 IEEE y y (5) y y (5) n n y TFLOPS n y (1) n n n n y AIX-5.1 32-bit y y y y y n y AIX-5.1 64-bit y y y y y n y WinXP (6) y n n n y y y WinXP Intel y n n n y y y Win2000 y n y n y y y Win2000 Intel y n y n y y y WinNT CW y n n n n n y Mac OS X 10.2 y n n n y y y FreeBSD y y (1) n n y y y Linux 2.4 gcc (3) y y (1) y (PGI) n y y y Linux 2.4 Intel (3) y n y n y n y Linux 2.4 PGI (3) y n y n y n y Linux 2.4 IA32 Intel y n y n y n y Linux 2.4 IA64 Intel y n y n y n y ASCII Table 2 -- for RELEASE.txt Platform static- Thread- SZIP GASS STREAM- High-level H4/H5 exec safe VFD APIs tools (7) Solaris2.7 64-bit x y y n y y n Solaris2.7 32-bit x y y n y y y Solaris2.8 64-bit x y y n y y n Solaris2.8 32-bit x y y n y y y IRIX6.5 x n y n y y y IRIX64_6.5 64-bit x y y y y y y IRIX64_6.5 32-bit x y y y y y y HPUX11.00 x n y n y y y OSF1 v5.1 y n y n y y y T3E y n n n y y y SV1 y n n n y y y T90 IEEE y n n n y y n TFLOPS y n n n n n n AIX-5.1 32-bit y n y n y y y AIX-5.1 64-bit y n y n y y y WinXP (6) y n y n n y y WinXP Intel y n y n n y y Win2000 y n y n n y y Win2000 Intel y n y n n y y WinNT CW y n y n n y y Mac OS X 10.2 y n y n y y n FreeBSD y y y n y y y Linux 2.4 gcc (3) y y y n y y y Linux 2.4 Intel (3) y n y n y n n Linux 2.4 PGI (3) y n y n y n n Linux 2.4 IA32 Intel y n y n y y y Linux 2.4 IA64 Intel y n y n y y y Notes: (1) Using mpich 1.2.4. (2) Using mpt and mpich 1.2.4. (3) Linux 2.4 with GNU, Intel, and PGI compilers, respectively. (4) Shared libraries are provided only for the C library, except on Windows where they are provided for C and C++. (5) Using mpt. (6) Binaries only; source code for this platform is not being released at this time. (7) Includes the H4toH5 Library and the h4toh5 and h5toh4 utilities. Compiler versions for each platform are listed in the preceding "Platforms Tested" table. Known Problems ============== * Fortran subroutine h5pget_driver_f doesn't return a correct driver information. The fix willl be available in the 1.6.2 release. * There are two h5dump xml tests(h5dump --xml thlink.h5 and h5dump --xml tmany.h5) failed on windows xp with .NET for debug and debug dll. Release and Release dll work fine. * The h5dump tests may fail to match the expected output on some platforms (e.g. parallel jobs, Windows) where the error messages directed to "stderr" do not appear in the "right order" with output from stdout. This is not an error. * The stream-vfd test uses ip port 10007 for testing. If another application is already using that port address, the test will hang indefinitely and has to be terminated by the kill command. To try the test again, change the port address in test/stream_test.c to one not being used in the host. * The --enable-static-exec configure flag fails to compile for Solaris platforms. This is due to the fact that not all of the system libraries on Solaris are available in a static format. The --enable-static-exec configure flag also fails to correctly compile on IBM SP2 platform for the serial mode. The parallel mode works fine with this option. It is suggested that you don't use this option on these platforms during configuration. * With the gcc 2.95.2 compiler, HDF 5 uses the `-ansi' flag during compilation. The ANSI version of the compiler complains about not being able to handle the `long long' datatype with the warning: warning: ANSI C does not support `long long' This warning is innocuous and can be safely ignored. * The Stream VFD was not tested yet under Windows. It is not supported in the TFLOPS machine. * The ./dsets tests failed in the TFLOPS machine if the test program, dsets.c, is compiled with the -O option. The hdf5 library still works correctly with the -O option. The test program works fine if it is compiled with -O1 or -O0. Only -O (same as -O2) causes the test program to fail. * Certain platforms give false negatives when testing h5ls: - Cray J90 and Cray T90IEEE give errors during testing when displaying some floating-point values. These are benign differences due to the different precision in the values displayed and h5ls appears to be dumping floating-point numbers correctly. * Before building HDF5 F90 Library from source on Crays replace H5Aff.f90, H5Dff.f90 and H5Pff.f90 files in the fortran/src subdirectory in the top level directory with the Cray-specific files from the site: * On some platforms that use Intel compilers to build HDF5 fortran library, compilation may fail for fortranlib_test.f90, fflush1.f90 and fflush2.f90 complaining about exit subroutine. Comment out the line IF (total_error .ne. 0) CALL exit (total_error) ftp://hdf.ncsa.uiuc.edu/pub/outgoing/hdf5/hdf5-1.6.0/F90_source_for_Crays * On IA32 and IA64 systems, if you use a compiler other than GCC (such as Intel's ecc or icc compilers), you will need to modify the generated "libtool" program after configuration is finished. On or around line 104 of the libtool file, there are lines which look like: # How to pass a linker flag through the compiler. wl="" change these lines to this: # How to pass a linker flag through the compiler. wl="-Wl," UPDATE: This is now done automatically by the configure script. However, if you still experience a problem, you may want to check this line in the libtool file and make sure that it has the correct value. * Information about building with PGI and Intel compilers is available in INSTALL file sections 5.7 and 5.8