I have a purely parallel job that runs ~100 processes. Each process has
overhead so the speed of the program is dominated by the slowest processor.
For this reason, I would like to restrict the job to a specific set of
processors on our cluster.
I read the FAQ on -hosts and -hostfile, but it is still unclear to me what
directives will have in a queuing environment.
Currently, I submit the job using the "qsub" command in the "sge"
environment as :
qsub -pe mpich 101 jobfile.job
where jobfile contains the command
mpirun -np 101 -nolocal ./executable
I would like to restrict the job to nodes compute-5-1 to compute-5-32 on
each containing 8 cpu's (slots). How do I go about this?
Howard Hughes Medical Institute
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