Hi David, What does:
scontrol show node orange01 scontrol show node orange02 show? Just to see if there's a default node weight hanging around, and if your weight changes have been picked up. Sean -- Sean Crosby Senior DevOpsHPC Engineer and HPC Team Lead | Research Platform Services Research Computing | CoEPP | School of Physics University of Melbourne On Thu, 25 Jul 2019 at 20:47, David Baker <d.j.ba...@soton.ac.uk<mailto:d.j.ba...@soton.ac.uk>> wrote: Hello, I'm experimenting with node weights and I'm very puzzled by what I see. Looking at the documentation I gathered that jobs will be allocated to the nodes with the lowest weight which satisfies their requirements. I have 3 nodes in a partition and I have defined the nodes like so.. NodeName=orange01 Procs=48 Sockets=8 CoresPerSocket=6 ThreadsPerCore=1 RealMemory=1018990 State=UNKNOWN Weight=50 NodeName=orange[02-03] Procs=48 Sockets=8 CoresPerSocket=6 ThreadsPerCore=1 RealMemory=1018990 State=UNKNOWN So, given that the default weight is 1 I would expect jobs to be allocated to orange02 and orange03 first. I find, however that my test job is always allocated to orange01 with the higher weight. Have I overlooked something? I would appreciate your advice, please.