Hi all, I have a cpu allocation problem on the 2 socket 18-core machine, with CPUSpecList=17,35 reserved. Ideally, if I submit a job with two 17-core tasks in a node, it allocates each task on a single NUMA node.
# *srun -N1 -n2 --cpus-per-task=**17** numactl -s *physcpubind: *0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16* cpubind: 0 membind: 0 1 physcpubind: *18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34* cpubind: 1 membind: 0 1 However, a job with two 16-core tasks show a bad allocation (cover two numa nodes) even if I enforce it by --cpu-bind=mask_cpu:0xffff,0x3fffc0000 # *srun -N1 -n2 --cpus-per-task=**16** numactl -s*, physcpubind: *0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15* cpubind: 0 membind: 0 1 physcpubind: *16 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32* cpubind: 0 1 membind: 0 1 How should I allocate it on 0-15, 18-33 for example? Many thanks, Chris