Hello
I’m trying to run a parallel application with mpirun and lam 6.5.9. and I’m getting the following error messages:
mpirun (set_stdio): Too many open files in system
The application I’m running is a little special as it consists of a parallel main task for a iterative solver for solving a large system of equations (dimension up to ~300.000.000). After some iterations in the main task, the master processor make a system call in order to start a parallel subtask by mpirun on the same nodes as the main task The subtask manipulates the data used in the main task. When the subtask has completed, the main task is resumed. When I run this application on 16 nodes, the error occurs after 18 successful invocation of the subtask.
Does anyone have an idea of what is going on?
Per Madsen
Senior Scientist, Ph,D.
Danish Institute of Agricultural Sciences
Dept. Of Animal Breeding and Genetics
Research Centre Foulum
P.O. Box 50
DK-8830 Tjele
Tel: +45 89 99 12 16
E-mail: Per.Madsen_at_[hidden]
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