MPI I/O + nfs
Bill Broadley
bill at math.ucdavis.edu
Thu Nov 29 20:34:02 PST 2001
I'm trying to get MPICH-1.2.2.3 MPI I/O + nfs working.
I read:
http://www-unix.mcs.anl.gov/mpi/mpich/docs/install/node31.htm
Step 1:
~/private/io> /usr/sbin/rpcinfo -p `hostname` | grep nfs
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
I'm using clients n1 and n2:
n2:~> mount | grep noac
master:/d0 on /d0 type nfs (rw,nfsvers=3,noac,addr=192.168.0.250)
n1:~> mount | grep noac
master:/d0 on /d0 type nfs (rw,nfsvers=3,noac,addr=192.168.0.250)
Just to make absolutely sure I'm using nfs 3 I ran nfstats, I ran
on n1 and n2 (same result):
Client nfs v2:
null getattr setattr root lookup readlink
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
read wrcache write create remove rename
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
link symlink mkdir rmdir readdir fsstat
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
Client nfs v3:
null getattr setattr lookup access readlink
0 0% 222540 54% 83 0% 10010 2% 52 0% 53 0%
read write create mkdir symlink mknod
67772 16% 103571 25% 2070 0% 2 0% 0 0% 0 0%
remove rmdir rename link readdir readdirplus
2068 0% 2 0% 0 0% 0 0% 172 0% 0 0%
fsstat fsinfo pathconf commit
356 0% 356 0% 0 0% 1372 0%
When running a very simple MPI I/O example I stil get:
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).
Anyone have any ideas? Anyone know of an MPICH mailing list?
Additional info:
n1:~> uname -a
Linux n1 2.4.9 #5 SMP Wed Sep 26 19:59:17 GMT-7 2001 i686 unknown
n2:~> uname -a
Linux n2 2.4.9 #5 SMP Wed Sep 26 19:59:17 GMT-7 2001 i686 unknown
--
Bill Broadley
Mathematics/Institute of Theoretical Dynamics
UC Davis
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