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2024-02-07 Test of milano216 host with command perf
Commands
Running perf with mpirun on a single and 80 CPUs:
perf stat -e cache-references,cache-misses,cycles,instructions,branches,branch-misses,faults,migrations,page-faults,L1-dcache-load-misses,L1-icache-load-misses,dTLB-load-misses,iTLB-load-misses mpirun -n 1 python Detector/examples/test-scaling-mpi.py
perf stat -e cache-references,cache-misses,cycles,instructions,branches,branch-misses,faults,migrations,page-faults,L1-dcache-load-misses,L1-icache-load-misses,dTLB-load-misses,iTLB-load-misses mpirun -n 80 python Detector/examples/test-scaling-mpi.py
Results
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ana-4.0.59-py3 [dubrovin@sdfmilan216:~/LCLS/con-py3]$ perf stat -e cache-references,cache-misses,cycles,instructions,branches,branch-misses,faults,migrations,page-faults,L1-dcache-load-misses,L1-icache-load-misses,dTLB-load-misses,iTLB-load-misses mpirun -n 1 python Detector/examples/test-scaling-mpi.py ... Performance counter stats for 'mpirun -n 1 python Detector/examples/test-scaling-mpi.py': 4,448,830,552 cache-references:u (50.00%) 90,374,312 cache-misses:u # 2.031 % of all cache refs (50.00%) 222,814,516,280 cycles:u (50.02%) 426,700,282,993 instructions:u # 1.92 insn per cycle (50.01%) 58,876,394,584 branches:u (50.01%) 2,343,687,188 branch-misses:u # 3.98% of all branches (50.01%) 635,183 faults:u 0 migrations:u 635,183 page-faults:u 2,158,358,417 L1-dcache-load-misses:u (50.00%) 5,694,036 L1-icache-load-misses:u (49.99%) 4,282,821 dTLB-load-misses:u (49.99%) 890,671 iTLB-load-misses:u (50.00%) 73.297275789 seconds time elapsed 69.795728000 seconds user 2.318007000 seconds sys ana-4.0.59-py3 [dubrovin@sdfmilan216:~/LCLS/con-py3]$ perf stat -e cache-references,cache-misses,cycles,instructions,branches,branch-misses,faults,migrations,page-faults,L1-dcache-load-misses,L1-icache-load-misses,dTLB-load-misses,iTLB-load-misses mpirun -n 80 python Detector/examples/test-scaling-mpi.py ... Performance counter stats for 'mpirun -n 80 python Detector/examples/test-scaling-mpi.py': 349,526,509,383 cache-references:u (50.01%) 5,932,480,814 cache-misses:u # 1.697 % of all cache refs (50.00%) 18,768,444,974,036 cycles:u (50.00%) 33,983,153,714,284 instructions:u # 1.81 insn per cycle (49.99%) 4,684,730,635,234 branches:u (49.99%) 186,649,297,019 branch-misses:u # 3.98% of all branches (50.00%) 52,121,421 faults:u 0 migrations:u 52,121,421 page-faults:u 171,500,392,922 L1-dcache-load-misses:u (50.00%) 267,672,856 L1-icache-load-misses:u (50.00%) 339,145,247 dTLB-load-misses:u (50.01%) 69,780,394 iTLB-load-misses:u (50.01%) 92.952500273 seconds time elapsed 6501.353593000 seconds user 410.844719000 seconds sys |
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