mirror of
https://github.com/HDFGroup/hdf5.git
synced 2025-02-17 16:10:24 +08:00
Activating collective IO supports for irregular selction inside HDF5 dataset. This support doesn't include to build the final complicated MPI derived datatype support for chunking storage. Description: Support collective chunk IO for both contiguous and chunking storage for irregular selection( using H5S_SELECT_OR for multiple hyperslab selection) Solution: Using MPI derived datatype to realize this feature. Problems still need to be investigated: Big size irregular hyperslab selection test may cause MPI hang or abnormalexit with MPICH family on various platforms. This is really hard to debug since sometimes it can work and sometimes it cannot work. We will continue investigating those cases. This may not be parallel HDF5 bugs since with the recent version of poe at IBM platforms, all tests passed. Platforms tested: 1. Linux heping 2.4.21-27.0.1 with mpich 2. AIX 5.1 copper with mpcc_r 3. Altix cobalt SGI linux 2.4.21-sgi304rp05031014_10149 with icc -lmpi 4. Linux Cluster SDSC TG, intel 8-r2 with mpich 1.2.5 5. NCSA Linux Cluster Tungsten, MPICH-TCP-1.2.5.2, Intel 8.0 under lustre 6. NCSA Linux Cluster Tungsten, MPICH-LAM-INTEL711, sometimes not working 7. NCSA Linux CLuster Tungsten, champion-pro-1.2.0-3, not working for other collective IO tests, but work for irregular selection collective IO test. Misc. update: |
||
---|---|---|
bin | ||
c++ | ||
config | ||
doc | ||
examples | ||
fortran | ||
hl | ||
perform | ||
release_docs | ||
src | ||
test | ||
testpar | ||
tools | ||
windows | ||
.autom4te.cfg | ||
aclocal.m4 | ||
acsite.m4 | ||
configure | ||
configure.in | ||
COPYING | ||
Makefile.am | ||
Makefile.dist | ||
Makefile.in | ||
MANIFEST | ||
README.txt |
HDF5 version 1.7.46 currently under development Please refer to the release_docs/INSTALL file for installation instructions. ------------------------------------------------------------------------------ This release is almost fully functional for the entire API defined in the documentation, see the RELEASE.txt file in this directory for information specific to this release of the library. The INSTALL file contains instructions on compiling and installing the library. The INSTALL_parallel file contains instructions on installing the parallel version of the library. The INSTALL* files can be found in the release_docs/ directory. Documentation for this release is in the html directory. Start with the "index.html" in that directory. Four mailing lists are currently set up for use with the HDF5 library. hdf5 - For general discussion of the HDF5 library with other users. hdf5dev - For discussion of the HDF5 library development with developers and other interested parties. hdf5announce - For announcements of HDF5 related developments, not a discussion list. hdf5cvs - For checkin notices of code development on the library, not a discussion list. To subscribe to a list, send mail to "majordomo@ncsa.uiuc.edu", with "subscribe <list>" in the _body_, not the Subject, of the message. E.g., subscribe hdf5 Messages to be sent to the list should be sent to "<list>@ncsa.uiuc.edu". Nearly daily code snapshots are now being provided at the following URL: ftp://hdf.ncsa.uiuc.edu/pub/outgoing/hdf5/snapshots Please read the readme file in that directory before working with a library snapshot. The HDF5 website is located at http://hdf.ncsa.uiuc.edu/HDF5/ Bugs should be reported to hdfhelp@ncsa.uiuc.edu.