The CREAM configuration for supporting SLURM (EMI-3)

CREAM interacts with the BLAH component which is an abstraction layer providing a unified interface to the underlying LRMS. Starting from the EMI-3 release the set of the supported LRMS has been extended by adding SLURM. This is a simply guide for configuring CREAM manually (the YAIM functions are not available yet) in order to enable the support of SLURM:

• prerequisites: provide a host SLURM enabled (i.e. SLURM client already installed and configured)
• install CREAM by the EMI-3 release (the installation steps are the same as described by System Administrator Guide for CREAM for EMI-2 release)
  • be sure to use the EMI-3 repositories
• configure CREAM by YAIM
  • set your site-info.def as follows:

    ...
    JOB_MANAGER=slurm
    ...
    CE_BATCH_SYS=slurm
    ...
    BATCH_BIN_DIR=/usr/local/bin
    BATCH_CONF_DIR=/usr/local/nfs/slurm
    ...

  • execute YAIM without the "-n LRMSnode" option:

    /opt/glite/yaim/bin/yaim -c -d 6 -s /root/emi2/slurm-emi-site-info.def -n creamCE

• edit the file /etc/sudoers.forcream and change the Cmnd_Alias value as follows:

  ...
  Cmnd_Alias GLEXEC_CMDS = /bin/echo, /bin/mkdir, /bin/cp, /bin/cat, /usr/bin/groups, /usr/bin/whoami, /bin/dd, /bin/mv, /usr/bin/id, /bin/kill, /usr/libexec/slurm_submit.sh, /usr/libexec/slurm_status.sh, /usr/libexec/slurm_cancel.sh, /usr/libexec/slurm_hold.sh, /usr/libexec/slurm_resume.sh, /usr/bin/glite-cream-copyProxyToSandboxDir.sh, /usr/bin/glite-cream-createsandboxdir, /usr/bin/glite-ce-cream-purge-sandbox, /usr/bin/glite-ce-cream-purge-proxy, /usr/bin/glite-ce-cream-create-wrapper, /bin/ls
  ...
     

• download the file blah.config and copy it in /etc
• restart the BLAH parser (i.e. BNotifier)

  /etc/init.d/glite-ce-blah-parser restart

• restart CREAM

  service tomcat6 restart

-- LisaZangrando - 2013-01-21