Hi everyone! Is it possible to transparently assign different walltime limits to nodes without forcing users to specify partitions when submitting jobs?
Example: let's say I have 10 nodes. Nodes n01-n05 should be available for jobs with a walltime up to 14 days, while n06-n10 should only be used for jobs with a walltime limit less then 1 day. Then as long as nodes n06-n10 have free resources, jobs with walltime <1day should be scheduled to these nodes. If n06-n10 are full, jobs with walltime <1day should start on n01-n05. Users should not have to specify partitions. Would this even be possible to do with just one partition much like nodes with different memory size using weights to fill nodes with less memoery first? Background of this question is that it would be helpfull to be able to lower the walltime for a rack of nodes, e.g. when adding this rack to an existing cluster in order to be able to easily shut down just this rack after one day in case of instabilities. Much like adding N nodes to a cluster without changing anything else and have only jobs with walltime <1day on thiese nodes in the beginning. Thanks, Jens. -- Jens Dreger Freie Universitaet Berlin dre...@physik.fu-berlin.de Fachbereich Physik - ZEDV Tel: +49 30 83854774 Arnimallee 14 Fax: +49 30 838454774 14195 Berlin
