Dear all I am using slurm 2.2.0 on ubuntu server 10.04 (LTS). My machine is having computing nodes containing: 1 socket having 4 cores + HT
My configuration files contains the following definitions: TaskPlugin=task/affinity SelectType=select/cons_res SelectTypeParameters=CR_Socket_Memory I have set-up: Procs=4 RealMemory=15360 Socket=1 CoresPerSocket=4 ThreadsPerCore=1 which prevent the usage of HT (at least this is what I think). Is that a good idea ? Does selection of CR_Socket_Memory means that Socket will be shared by different jobs ? or should I enforce --exclusive ? Since my apps are relying strongly on MPI + OpenMP I would like a socket to be dedicated to a job mpi task. By specifying --ntasks=3 I get only one socket allocated so I get that in order to enforce my policy I have to choose: --ntasks=3 --ntasks-per-socket=1 or --nodes=3 Is that correct ? Is there a better setting ? Thanks and Best Regards Guillaume -- PGP KeyID: 2048R/EA31CFC9 subkeys.pgp.net
