Il 10/10/20 18:53, Renfro, Michael ha scritto: > * Do you want to ensure that one job requesting 9 tasks (and 1 CPU per > task) can’t overstep its reservation and take resources away from > other jobs on those nodes? Cgroups [1] should be able to confine the > job to its 9 CPUs, and even if 8 processes get started at once in > the job, they’ll only drive up the nodes’ load average, and not > affect others’ performance. IMHO cgroups is a must-have: each job is guaranteed to receive what it asks for, and no more. If it tries to use more, it just self-contends resources, w/o impacting other jobs. Configuring it greatly reduced headaches on our cluster :)
-- Diego Zuccato DIFA - Dip. di Fisica e Astronomia Servizi Informatici Alma Mater Studiorum - Università di Bologna V.le Berti-Pichat 6/2 - 40127 Bologna - Italy tel.: +39 051 20 95786
