Computing with GPUs

Requesting GPUs

GPUs are requested via the GRES option:

sbatch --gres=gpu ...

Request multiple GPUs with:

sbatch --gres=gpu:2

At this time we have one GPU per node.

Nodes with GPUs

Location	Partition	Node Name	GPU
FHCRC	all	j	NVIDIA GTX 1080ti
FHCRC	all	k	NVIDIA RTX 2080ti
FHCRC	none (interactive use)	rhino	NVIDIA RTX1080ti

Using GPUs

When your job is assigned a GPU, Slurm sets the environment variable CUDA_VISIBLE_DEVICES. This environment variable indicates the assigned GPU- most CUDA tools (e.g. tensorflow) use this to restrict execution to that device.