I am trying to get LAM-MPI installed and running on an Apple OsX Xserve
cluster. Everything seems to be installed and working fine HOWEVER when
I compare the output file from the single processor run to the output
file from the multi processor run using LAM-MPI, the numbers don't
agree. The MPI run numbers seem to be mixed up and slightly out of
position.
SO...I ran the test suite and discovered this error:
File locking failed in ADIOI_Set_lock. If the file system is NFS, you
need to use NFS version 3 and mount the directory with the 'noac' option
(no attribute caching).
Could this error be related? We are using NFS version 3. (I'm not sure
about the 'noac' option and don't know how to find out on OSX).
Although NFS is used for the users home space, MPI-LAM is installed
locally on each of the nodes.
I am out of ideas and don't want to go back to MPICH which does seem to
work fine.
Help and thanks,
David Kendig
NASA/GSFC
Greenbelt, MD
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