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| author | MuQun Yang <ymuqun@hdfgroup.org> | 2007-08-24 17:56:36 (GMT) |
|---|---|---|
| committer | MuQun Yang <ymuqun@hdfgroup.org> | 2007-08-24 17:56:36 (GMT) |
| commit | 18c30d67ed50d44f7e92a7083da8fd566445e90a (patch) | |
| tree | aaad559940e1026d7a5ecc4d43156838db503981 | |
| parent | 51073136ce409884c772b712a69f1264a50f8252 (diff) | |
| download | hdf5-18c30d67ed50d44f7e92a7083da8fd566445e90a.zip hdf5-18c30d67ed50d44f7e92a7083da8fd566445e90a.tar.gz hdf5-18c30d67ed50d44f7e92a7083da8fd566445e90a.tar.bz2 | |
[svn-r14110] Document MPI-IO compiler problem on tungsten.
| -rw-r--r-- | release_docs/RELEASE.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 6e4d24c..ac19eaa 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -1159,6 +1159,26 @@ Alpha OpenVMS 7.3.2 n n n y n n Known Problems ============== +* We discovered two problems when running collective IO parallel HDF5 tests + with chunking storage on ChaMPIon MPI compiler on tungsten, a linux + cluster at NCSA. + Under some complex selection cases, + 1) MPI_Get_element returns the wrong value. + 2) MPI_Type_struct also generates wrong derived data type and corrupt data + may be generated. + This only happens when turning on collective IO with chunking storage + with some complex selections. We haven't found these problems on other + MPI-IO compilers. If you encounter these problems, you may use Independent IO + instead. + + Change the following line in your code: + H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE); + + to + H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_INDEPENDENT); + + KY - 2007/08/24 + * For SNL, spirit/liberty/thunderbird: The serial tests pass but parallel tests failed with MPI-IO file locking message. AKC - 2007/6/25. * On Intel 64 Linux cluster (RH 4, Linux 2.6.9) with Intel 10.0 compilers use |