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Introduction SMEM is a tool originally based in the tool QMEM that was writed to work with SunGrid Engine. SMEM has been an adaption of the QMEM to Slurm.

SMEM report us the current state of the resources available in a Slurm cluster with the possibility to choose if we want to view the jobs that are allocating the resources.

SMEM monitors the current state of the resources available in a Slurm cluster with the possibility to choose which jobs we want to list (we can indicate to the tool that we want to see only the jobs that belong to some user, partition or computers).

Requisites To be able to run SMEM in our cluster, this tool needs to be executed in a computer that belongs to the Slurm cluster. The tool needs to have access to the slurm commands sacctmgr, scontrol, sstat, sinfo and sacct.

As this tool is a php script, we also need to have php interpreter installed in the computer.

Installation The only modification that is necesary to be done in the computer i to add this line in the sudo file:

ALL ALL=(ALL) NOPASSWD: /usr/bin/sstat

By default, the sstat command only allow us to show information of our jobs. We need to modify this behavior to be able to run stat to collect some information of all the jobs that are in the cluster. This is done by SMEM using the sudo tool, so it is needed to add the previous line in the sudo file.

It is also advisable to have SMEM available in the PATH.

How to use it Usage:

smem [[-u] [<user-list>]] [-p <partition-name>] [-w <host-list>] [[-g] [<resources-list>]]

-u [<user-list>] Shows the resources in use by all the jobs currently running. If the user list is present, shows only the running jobs that belong to the users list. The resource list has to be comma separated list.

Example 1:

Example 2:

-p <partition-list> Shows information only for the given partitions The partitions has to be. a comma separated list. -g [<resource-list>] Show the usage of the general resources. If the resource list is present, shows only the usage of the resources that are in the list. The resource list has to be comma separated list. -w <host-list> Show information only for the given host list. The host list has to be a comma separated list. -h Shows this help.