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Connection on the front end
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Access to the front end is done via an ssh connection:
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$ ssh login@jean-zay.idris.fr
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The resources of this interactive node are shared between all the connected users:
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As a result, the interactive on the front end is reserved exclusively for compilation and script development.
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Important: The Jean Zay front end nodes are not equipped with GPU. Therefore, these nodes cannot be used for executions requiring one or more GPU.
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To effectuate interactive executions of your GPU codes on the accelerated compute nodes, you must use one of the following two commands:
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The srun command:
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to obtain a terminal on a GPU compute node within which you can execute your code,
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or to directly execute your code on the GPU partition.
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The salloc command to reserve GPU resources which allows you to do more than one execution consecutively.
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However, if the computations require a large amount of GPU resources (in number of cores, memory, or elapsed time), it is necessary to submit a batch job. |