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develop/_sources/installation/resource-manager/advanced-configs.rst.txt
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.. _advanced-resource-manager-configs: | ||
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Advanced Resource Manager Configrations | ||
======================================= | ||
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This page details advanced settings for any resource manager | ||
that could be helpful in using Open OnDemand. | ||
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Visualization Nodes | ||
------------------- | ||
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At OSC we offer ``visualization`` nodes that attach the X11 session | ||
to a GPU so that any rendering can occur on the GPU itself. | ||
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We've defined ``vis`` as a `Slurm GRES`_ that jobs can request (i.e., | ||
some batch connect applications request this `Slurm GRES`_). | ||
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We use a `Slurm prolog`_ to do the actual work of attaching the X11 | ||
session to the GPU. | ||
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Other resource managers may have a similar facility for doing work | ||
just before the job starts running. | ||
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This is an example of that `Slurm prolog`_. | ||
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.. code-block:: bash | ||
if [[ "$SLURM_LOCALID" == "0" && "$SLURM_JOB_GRES" == *"vis"* ]]; then | ||
if [ -n "$CUDA_VISIBLE_DEVICES" ]; then | ||
FIRSTGPU=$(echo $CUDA_VISIBLE_DEVICES | tr ',' "\n" | head -1) | ||
setsid /usr/bin/X :${FIRSTGPU} -noreset >& /dev/null & | ||
sleep 2 | ||
if [ -n "$DISPLAY" ]; then | ||
echo "export OLDDISPLAY=$DISPLAY" | ||
fi | ||
echo "export DISPLAY=:$FIRSTGPU" | ||
fi | ||
fi | ||
.. _Slurm prolog: https://slurm.schedmd.com/prolog_epilog.html | ||
.. _Slurm GRES: https://slurm.schedmd.com/gres.html |
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