Sorry for not replying earlier -- yes, this should work. It's a
known issue that we have MCA parameter "contamination" if you try to
fork/exec an mpirun from within an MPI process.
On Jul 26, 2007, at 1:48 AM, Per Madsen wrote:
Hi
I have found a solution to my problem with executing a MPI program
from within a MPI program via a system call.
A related problem has been discussed in the thread: “Recursive use
of orterun”.
The problem was the setup and export of environment variables.
I solved my problem by adding the following to the script starting
the second MPI program:
for i in $(env | grep OMPI_MCA |sed 's/=/ /' | awk '{print $1}')
do
unset $i
done
This clear the environment for the child process for all variables
with name starting with “OMPI_NCA”
Regards
Per Madsen
Senior scientist
AARHUS UNIVERSITET / UNIVERSITY OF AARHUS
Det Jordbrugsvidenskabelige Fakultet / Faculty of Agricultural
Sciences
Forskningscenter Foulum / Research Centre Foulum
Genetik og Bioteknologi / Dept. of Genetics and Biotechnology
Blichers Allé 20, P.O. BOX 50
DK-8830 Tjele
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Jeff Squyres
Cisco Systems
