User:Ppomorsk: Difference between revisions

User:Ppomorsk (view source)

329 bytes added , 2 years ago

cc_staff

229

edits

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 ==Working with processors that have non-uniform memory access (NUMA)==
+ $ numactl --hardware
+ available: 2 nodes (0-1)
+ node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ node 0 size: 64030 MB
+ node 0 free: 61453 MB
+ node 1 cpus: 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
+ node 1 size: 64508 MB
+ node 1 free: 61016 MB
+ node distances:
+ node   0   1
+:  10  21
+:  21  10
   #!/bin/bash
@@ Line 13: / Line 28: @@
   #SBATCH --account=cc-debug
   export OMP_NUM_THREADS=16
-  numactl --physcpubind=+0-15 ./test.x &
+  numactl --cpunodebind=0 --membind=0 ./test.x &
-  numactl --physcpubind=+16-31 ./test.x &
+  numactl --cpunodebind=1 --membind=1 ./test.x &
   wait
 ==FEniCS==