Hello Moe,

That is exactly what the overcommit option is designed to do.

    when I do
    salloc -p sandy --overcommit --ntasks-per-node=16 --ntasks-per-core=2 -t 10
    all tasks run on a single core:

Hm, thats a bit confusing for me. It looks like "--overcommit" and "--ntasks-per-core=2" do not work together.

Is there a way to tell SLURM that I want to run exactly two processes per core?

Thanks
Ulf


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___________________________________________________________________
Dr. Ulf Markwardt

Technische Universität Dresden
Center for Information Services and High Performance Computing (ZIH)
01062 Dresden, Germany

Phone: (+49) 351/463-33640      WWW:  http://www.tu-dresden.de/zih

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