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[svn-r12043] Purpose:

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Add some descriptions about MPICH collective IO bug.

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MuQun Yang 2006-03-09 09:45:35 -05:00
parent 13cddec0b4
commit 3ba9425ab2
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release_docs/RELEASE.txt
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@ -893,6 +893,10 @@ Linux 2.4 IA64 Intel y n y n y y y
Known Problems
==============
* On mpich 1.2.5 and 1.2.6, we found that if more than two processes
contribute no IO and the application asks to do IO with collective, we found
that when using 4 processors, a simple collective write will be hung
sometimes. This can be verified with t_mpi test under testpar.
* On IRIX6.5, when C compiler version >7.4, the complicate MPI derived data type
code will work. However, the user should be aware to enlarge MPI_TYPE_MAX environment
variable to some certian value in order to use collective irregular selection code.