---------- Forwarded message ----------
From: Prithu Tiwari <prithubt_at_[hidden]>
Date: Wed, Mar 18, 2009 at 3:08 PM
Subject: Re: Welcome to the "lam" mailing list
To: lam-request_at_[hidden]
Hi,
We are facing a strange problem when running the lam-mpiexec the
example pi program.
We installed the lam by compiling from downloaded lam-7.1.4 source and doing
configure/make/make install
to a particular path (/opt/lam/gcc) using "--prefix".
This compilation was done on the masternode and on the rest of the
cluster-nodes we simply scp-ed the directory
(/opt/lam/gcc) .
We compiled the program cpi.c after doing the proper path settings using
"mpicc"
mpicc cpi.c -o cpi -lm
This occurs without any problem.
We run this on master node using
lamboot mac
mac contains hostname of masternode and another node.
nx0
nx0
nx1
nx1
and execute using following
mpiexec -np 4 ./cpi
This runs properly and exits without any error.
Samething we try from another node like
lamboot nod
nod contains
nx31
nx31
nx32
nx32
and execute using:
mpiexec -np 4 ./cpi
This also runs properly but does not exit - would exit only if we press
"enter". If we see the exit status using
echo $?
it shows 25 !!
While submitting to torque also it shows error in pi.err file
"mpirun exited with status 1"
Can somebody tell why this happening?
regards
prithu
|
