Recommanded way to use (esrf) slurm cluster

There is several ways to use the slurm cluster at esrf. As ressources are limited (especially GPUS) here is the ‘recommanded way’ to use the slurm cluster with tomwer:

first connect to the slurm cluster front-end

ssh -XC cluster-access

Then connect to the ‘interactive’ partition in ‘interactive’ mode

salloc --partition interactive --x11 srun --pty bash -l

Then on the node you can activate the version of tomwer that you want to launch and start the canvas application.

module load tomotools
tomwer canvas

You should now see the ‘canvas’ interface

Hint

you can specify a version of the tomotools when you load the module (like dev or stable…)

module load tomotools/{dev|stable|1.x}

Then trigger all jobs requireing a GPU (nabu reconstructions) remotly.

Here are two examples:

• reconstructing one slice over slurm

• reconstructing one slice and a full volume over slurm

Remenber that some examples of workflows using slurm are available on examples/remote processing with slurm and that a video has been made to show this use case:

• https://youtu.be/HYufV7Ya9v8

Warning

Please all remenber that all ‘nabu’ tasks will require a GPU so you will not be able to run them locally on the ‘interactive’ partition or any node not having a dedicated GPU.