From: jim caldwell (caldwell@heimdal.compchem.ucsf.edu)
Date: Wed Jul 31 2002 - 17:08:54 EDT
Hi Managers,
I have 9 ES40's running Tru64 5.1, all 4 processor machines,
each with 1GB or more of memory.
The problem is that when I run a small 4 processor MPI (fortran)
job on any one of 8 of the machines all is fine: "top" shows 4 processes
running at 99.9% cpu active each cpu.
HOWEVER, on the 9th machine, the identical job runs 4 processes at
49.9% cpu active each cpu. I can take the job and set the number of
processors down to 2 and I get 2 processes running at 99.9% cpu active
each.
I'm completely baffled.
thanks,
jim
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James W. Caldwell (voice) 415-476-8603
Department of Pharmaceutical Chemistry (fax) 415-502-1411
Mail Stop 0446 (email) caldwell@heimdal.ucsf.edu
513 Parnassus Avenue
University of California
San Francisco, CA 94143-0446
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