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[svn-r14110] Document MPI-IO compiler problem on tungsten.

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MuQun Yang 2007-08-24 12:56:36 -05:00
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release_docs/RELEASE.txt
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@ -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