HDF5 Release 1.2.1 December 21, 1999 INTRODUCTION This document describes the differences between HDF5-1.2.0 and HDF5-1.2.1, and contains information on the platforms where HDF5-1.2.1 was tested and known problems in HDF5-1.2.1. For more details check the HISTORY 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 - Bug fixes since HDF5-1.2.0 - Platforms Tested - Known Problems Bug fixes since HDF5-1.2.0 ========================== Configuration ------------- * The hdf5.h include file was fixed to allow the HDF5 Library to be compiled with other libraries/applications that use GNU autoconf. * Configuration for parallel HDF5 was improved. Configure now attempts to link with libmpi.a and/or libmpio.a as the MPI libraries by default. It also uses "mpirun" to launch MPI tests by default. It tests to link MPIO routines during the configuration stage, rather than failing later as before. One can just do "./configure --enable-parallel" if the MPI library is in the system library. Dataset region references ------------------------- * Error was fixed which was not allowing dataset region references to have their regions retrieved correctly. Tools ------ * Added an option, -V, to show the version information of h5dump. * Fixed a core dumping bug of h5toh4 when executed on platforms like TFLOPS. * The test script for h5toh4 used to not able to detect the hdp dumper command was not valid. It now detects and reports the failure of hdp execution. Documentation ------------- * User's Guide and Reference Manual were updated. See doc/html/PSandPDF/index.html for more details. Platforms Tested: ================ Note: Due to the nature of bug fixes, only static versions of the library and tools were tested. AIX 4.3.2 (IBM SP) 3.6.6 Cray T3E 2.0.4.81 cc 6.3.0.1 mpt.1.3 FreeBSD 3.3-STABLE gcc 2.95.2 HP-UX B.10.20 HP C HP92453-01 A.10.32 IRIX 6.5 MIPSpro cc 7.30 IRIX64 6.5 (64 & n32) MIPSpro cc 7.3.1m mpt.1.3 (SGI MPI 3.2.0.0) Linux 2.2.10 SuSE egcs-2.91.66 configured with (i686-pc-linux-gnu) --disable-hsizet mpich-1.2.0 egcs-2.91.66 19990314/Linux OSF1 V4.0 DEC-V5.2-040 SunOS 5.6 cc WorkShop Compilers 4.2 no optimization SunOS 5.7 cc WorkShop Compilers 5.0 TFLOPS 2.8 cicc (pgcc Rel 3.0-5i) mpich-1.1.2 with local changes Windows NT4.0 sp5 MSVC++ 6.0 Known Problems: ============== o SunOS 5.6 with C WorkShop Compilers 4.2: Hyperslab selections will fail if library is compiled using optimization of any level. o h5dump does not display correctly committed copy of predefined types. o h5dump has problems displaying compound datatypes.