All, I am getting the following error when using b_eff_io on a lustre. What am I missing/doing wrong? I am using openmpi. # mpicc -o b_eff_io b_eff_io.c -lm [root@n1 FC]# mpirun -np 2 /lustre/FC/b_eff_io -MB 1024 -MT 262144 -T 30 -p /lustre/FC File locking failed in ADIOI_Set_lock. 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). File locking failed in ADIOI_Set_lock. 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). [n1.local:22619] MPI_ABORT invoked on rank 1 in communicator MPI_COMM_WORLD with errorcode 1 [n1.local:22618] MPI_ABORT invoked on rank 0 in communicator MPI_COMM_WORLD with errorcode 1 Thanks, Mahmoud --------------------------------- Need Mail bonding? Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers users. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.clusterfs.com/pipermail/lustre-discuss/attachments/20070628/9b134039/attachment-0001.html