diff --git a/doc.zih.tu-dresden.de/docs/jobs_and_resources/slurm_examples.md b/doc.zih.tu-dresden.de/docs/jobs_and_resources/slurm_examples.md index 2c00d715b97cb01e71940d2147bac7fb2a0ec599..c05c2da6078c4367538c0557997c7100bb3d089d 100644 --- a/doc.zih.tu-dresden.de/docs/jobs_and_resources/slurm_examples.md +++ b/doc.zih.tu-dresden.de/docs/jobs_and_resources/slurm_examples.md @@ -146,16 +146,14 @@ This is useful to document the cluster used or avoid accidentally using the wron The number of cores per node that are currently allowed to be allocated for GPU jobs is limited depending on how many GPUs are being requested. -On Alpha Centauri you may only request up to 6 cores per requested GPU. This is because we do not wish that GPUs become unusable due to all cores on a node being used by a single job which does not, at the same time, request all GPUs. E.g., if you specify `--gres=gpu:2`, your total number of cores per node (meaning: -`ntasks`*`cpus-per-task`) may not exceed 12 (on Alpha Centauri) +`ntasks`*`cpus-per-task`) may not exceed 12 on Alpha Centauri. Note that this also has implications for the use of the `--exclusive` parameter. -Since this sets the number of allocated cores to 48, you also **must** request all eight GPUs -by specifying `--gres=gpu:8`, otherwise your job will not start. +Since this sets the number of allocated cores to the maximum, you also **must** request all GPUs otherwise your job will not start. In the case of `--exclusive`, it won't be denied on submission, because this is evaluated in a later scheduling step. Jobs that directly request too many cores per GPU will be denied with the error message: