File locking failed in ADIOI_Set_lock

[John Michalakes]

  Hi List,

I'm running WRF on a large cluster with a Lustre file system 
(redmesa.sandia.gov) and am encountering the following error on one of 
the processes doing a write through pNetCDF over OpenMPI:

    File locking failed in ADIOI_Set_lock(fd 18,cmd F_SETLKW/7,type
    F_WRLCK/1,whence 0) with return value FFFFFFFF and errno 26.
    If the file system is NFS, you need to use NFS version 3, ensure
    that the lockd daemon is running on all the machines, and mount the
    directory with the 'noac' option (no attribute caching).
    ADIOI_Set_lock:: Function not implemented
    ADIOI_Set_lock:offset 74588, length 804


Have Googled this a little before writing to this list, and the 
workaround seems to be to upgrade to NFS v3, but that's outside my 
purview and I don't know if that's applicable to this Lustre system 
anyway.  Have you seen this before?  Any thoughts or suggestions? Thanks,

John


-- 
John Michalakes
National Renewable Energy Laboratory
1617 Cole Blvd.
Golden, Colorado 80401
Phone: 303-275-4297
Fax: 303-275-4091
John.Michalakes at nrel.gov


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