Limit cpus and memory in Singularity

[Raimon Bosch]

Hi all,

Is it possible to limit memory and number of cpus used for each Singularity container? Like you would do in docker by sending the parameters --memory and --cpu-shares.

Thanks in advance,

[Gregory M. Kurtzer]

Hi Raimon,

That is outside of the current scope of Singularity at this point... This is because Singularity containers are designed to run like any other application on the system, so existing limitations (set by the resource manager or ulimits) should already apply.

Greg

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Gregory M. Kurtzer
High Performance Computing Services (HPCS)
University of California
Lawrence Berkeley National Laboratory
One Cyclotron Road, Berkeley, CA 94720

[Aly Khalifa]

Hi Greg,
I'm using singularity container that bootstrap a docker image requiring at least 4 gigabytes as RAM, otherwise incorrect results will be produced.
Is there is a way to make this singularity container runs using at least 4 gigabytes RAM on a linux machine? or just running it over a +4 gigabytes RAM machine is all what I can do?

Thanks,
Aly

[Gregory M. Kurtzer]

Hi Aly,

Typically this is allocated via the resource manager (if running on an HPC resource).

Greg

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Gregory M. Kurtzer

CEO, SingularityWare, LLC.

Senior Architect, RStor

Computational Science Advisor, Lawrence Berkeley National Laboratory