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BabelStream, OpenMP vs. Rayon
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| $ perf stat -d ./omp-stream | |
| BabelStream | |
| Version: 3.4 | |
| Implementation: OpenMP | |
| Running kernels 100 times | |
| Precision: double | |
| Array size: 268.4 MB (=0.3 GB) | |
| Total size: 805.3 MB (=0.8 GB) | |
| Function MBytes/sec Min (sec) Max Average | |
| Copy 108865.244 0.00493 0.05374 0.00834 | |
| Mul 97387.786 0.00551 0.03843 0.00959 | |
| Add 100390.735 0.00802 0.03490 0.01230 | |
| Triad 104748.201 0.00769 0.04499 0.01212 | |
| Dot 116643.998 0.00460 0.03035 0.00887 | |
| Performance counter stats for './omp-stream': | |
| 665,460.03 msec task-clock:u # 115.871 CPUs utilized | |
| 0 context-switches:u # 0.000 K/sec | |
| 0 cpu-migrations:u # 0.000 K/sec | |
| 60,325 page-faults:u # 0.091 K/sec | |
| 1,973,539,186,499 cycles:u # 2.966 GHz (49.83%) | |
| 20,578,592,028 stalled-cycles-frontend:u # 1.04% frontend cycles idle (49.75%) | |
| 1,892,921,586,383 stalled-cycles-backend:u # 95.92% backend cycles idle (10.05%) | |
| 412,763,127,962 instructions:u # 0.21 insn per cycle | |
| # 4.59 stalled cycles per insn (20.14%) | |
| 78,155,286,693 branches:u # 117.446 M/sec (30.21%) | |
| 84,235,682 branch-misses:u # 0.11% of all branches (10.04%) | |
| 92,640,194,539 L1-dcache-loads:u # 139.212 M/sec (20.04%) | |
| 33,602,081,514 L1-dcache-load-misses:u # 36.27% of all L1-dcache hits (30.02%) | |
| 637,221,226 LLC-loads:u # 0.958 M/sec (29.95%) | |
| 134,179,050 LLC-load-misses:u # 21.06% of all LL-cache hits (39.89%) | |
| 5.743135905 seconds time elapsed | |
| 637.155108000 seconds user | |
| 28.291715000 seconds sys | |
| $ perf stat -d ./target/release/babel_stream | |
| BabelStream | |
| Version: 0.5 | |
| Implmentation: Rust | |
| Running kernels 100 times | |
| Precision: double | |
| Array size: 268.4 MB (=0.3 GB) | |
| Total size: 805.3 MB (=0.8 GB) | |
| Function Mbytes/sec Min (sec) Max Average | |
| Copy 54328.164 0.00988 0.02706 0.01375 | |
| Mul 54421.785 0.00987 0.02571 0.01333 | |
| Add 51490.177 0.01564 0.03606 0.02052 | |
| Triad 52049.274 0.01547 0.03241 0.02031 | |
| Dot 50989.734 0.01053 0.02623 0.01478 | |
| Performance counter stats for './target/release/babel_stream': | |
| 1,062,303.36 msec task-clock:u # 122.712 CPUs utilized | |
| 0 context-switches:u # 0.000 K/sec | |
| 0 cpu-migrations:u # 0.000 K/sec | |
| 42,124 page-faults:u # 0.040 K/sec | |
| 3,260,121,432,385 cycles:u # 3.069 GHz (49.86%) | |
| 541,201,721,259 stalled-cycles-frontend:u # 16.60% frontend cycles idle (49.90%) | |
| 2,227,238,034,453 stalled-cycles-backend:u # 68.32% backend cycles idle (10.04%) | |
| 331,330,149,597 instructions:u # 0.10 insn per cycle | |
| # 6.72 stalled cycles per insn (20.07%) | |
| 50,746,277,795 branches:u # 47.770 M/sec (30.08%) | |
| 3,184,008,620 branch-misses:u # 6.27% of all branches (10.01%) | |
| 89,919,348,934 L1-dcache-loads:u # 84.646 M/sec (20.01%) | |
| 9,660,898,319 L1-dcache-load-misses:u # 10.74% of all L1-dcache hits (29.99%) | |
| 878,764,317 LLC-loads:u # 0.827 M/sec (29.95%) | |
| 849,262,989 LLC-load-misses:u # 96.64% of all LL-cache hits (39.89%) | |
| 8.656898836 seconds time elapsed | |
| 1038.920388000 seconds user | |
| 23.939748000 seconds sys |
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| $ perf stat -d taskset -c 0-63 ./omp-stream | |
| BabelStream | |
| Version: 3.4 | |
| Implementation: OpenMP | |
| Running kernels 100 times | |
| Precision: double | |
| Array size: 268.4 MB (=0.3 GB) | |
| Total size: 805.3 MB (=0.8 GB) | |
| Function MBytes/sec Min (sec) Max Average | |
| Copy 52348.508 0.01026 0.01185 0.01043 | |
| Mul 49850.428 0.01077 0.01266 0.01098 | |
| Add 52537.521 0.01533 0.01801 0.01565 | |
| Triad 54129.328 0.01488 0.01763 0.01513 | |
| Dot 65692.195 0.00817 0.00940 0.00843 | |
| Performance counter stats for 'taskset -c 0-63 ./omp-stream': | |
| 407,153.55 msec task-clock:u # 61.544 CPUs utilized | |
| 0 context-switches:u # 0.000 K/sec | |
| 0 cpu-migrations:u # 0.000 K/sec | |
| 48,376 page-faults:u # 0.119 K/sec | |
| 1,258,117,724,107 cycles:u # 3.090 GHz (50.07%) | |
| 10,514,200,105 stalled-cycles-frontend:u # 0.84% frontend cycles idle (49.94%) | |
| 1,201,580,975,236 stalled-cycles-backend:u # 95.51% backend cycles idle (9.95%) | |
| 179,689,025,851 instructions:u # 0.14 insn per cycle | |
| # 6.69 stalled cycles per insn (19.96%) | |
| 24,049,840,548 branches:u # 59.068 M/sec (29.99%) | |
| 11,896,941 branch-misses:u # 0.05% of all branches (10.03%) | |
| 35,726,797,726 L1-dcache-loads:u # 87.748 M/sec (20.07%) | |
| 6,936,045,729 L1-dcache-load-misses:u # 19.41% of all L1-dcache hits (30.10%) | |
| 657,412,066 LLC-loads:u # 1.615 M/sec (30.09%) | |
| 103,466,460 LLC-load-misses:u # 15.74% of all LL-cache hits (40.10%) | |
| 6.615633299 seconds time elapsed | |
| 397.221694000 seconds user | |
| 10.255615000 seconds sys | |
| $ perf stat -d taskset -c 0-63 ./target/release/babel_stream | |
| BabelStream | |
| Version: 0.5 | |
| Implmentation: Rust | |
| Running kernels 100 times | |
| Precision: double | |
| Array size: 268.4 MB (=0.3 GB) | |
| Total size: 805.3 MB (=0.8 GB) | |
| Function Mbytes/sec Min (sec) Max Average | |
| Copy 58058.929 0.00925 0.01154 0.00974 | |
| Mul 51776.537 0.01037 0.01149 0.01057 | |
| Add 53694.250 0.01500 0.01545 0.01518 | |
| Triad 54317.170 0.01483 0.01600 0.01503 | |
| Dot 61588.954 0.00872 0.00974 0.00894 | |
| Performance counter stats for 'taskset -c 0-63 ./target/release/babel_stream': | |
| 383,067.96 msec task-clock:u # 62.107 CPUs utilized | |
| 0 context-switches:u # 0.000 K/sec | |
| 0 cpu-migrations:u # 0.000 K/sec | |
| 29,813 page-faults:u # 0.078 K/sec | |
| 1,211,090,824,687 cycles:u # 3.162 GHz (49.85%) | |
| 145,032,175,754 stalled-cycles-frontend:u # 11.98% frontend cycles idle (49.92%) | |
| 928,771,095,319 stalled-cycles-backend:u # 76.69% backend cycles idle (10.06%) | |
| 95,197,325,012 instructions:u # 0.08 insn per cycle | |
| # 9.76 stalled cycles per insn (20.10%) | |
| 9,535,026,301 branches:u # 24.891 M/sec (30.11%) | |
| 543,578,990 branch-misses:u # 5.70% of all branches (10.00%) | |
| 30,401,146,966 L1-dcache-loads:u # 79.362 M/sec (19.98%) | |
| 3,961,642,174 L1-dcache-load-misses:u # 13.03% of all L1-dcache hits (29.95%) | |
| 786,657,019 LLC-loads:u # 2.054 M/sec (29.90%) | |
| 272,522,007 LLC-load-misses:u # 34.64% of all LL-cache hits (39.86%) | |
| 6.167891515 seconds time elapsed | |
| 375.015537000 seconds user | |
| 8.316741000 seconds sys |
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| Operating System: Fedora 29 (Twenty Nine) | |
| Kernel: Linux 5.0.5-200.fc29.ppc64le | |
| $ lscpu | |
| Architecture: ppc64le | |
| Byte Order: Little Endian | |
| CPU(s): 128 | |
| On-line CPU(s) list: 0-127 | |
| Thread(s) per core: 4 | |
| Core(s) per socket: 16 | |
| Socket(s): 2 | |
| NUMA node(s): 2 | |
| Model: 2.2 (pvr 004e 1202) | |
| Model name: POWER9, altivec supported | |
| CPU max MHz: 3800.0000 | |
| CPU min MHz: 2166.0000 | |
| L1d cache: 32K | |
| L1i cache: 32K | |
| L2 cache: 512K | |
| L3 cache: 10240K | |
| NUMA node0 CPU(s): 0-63 | |
| NUMA node8 CPU(s): 64-127 | |
| $ rpm -q rust clang llvm-libs | |
| rust-1.35.0-1.fc29.ppc64le | |
| clang-7.0.1-6.fc29.ppc64le | |
| llvm-libs-7.0.1-4.fc29.ppc64le |
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