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- r0: run_2_threads
- r1: run_4_threads
- r2: run_8_threads
- r3: run_16_threads
- r4: run_26_threads
- r5: run_52_threads
| Metric | r0 | r1 | r2 | r3 | r4 | r5 |
|---|
| Total Time (s) | 1.04 E3 | 529.11 | 273.27 | 142.70 | 92.31 | 53.39 |
| Max (Thread Active Time) (s) | 1.04 E3 | 528.97 | 273.18 | 142.64 | 92.24 | 53.31 |
| Average Active Time (s) | 1.04 E3 | 528.83 | 273.12 | 142.60 | 92.21 | 53.26 |
| Activity Ratio (%) | 99.9 | 100.0 | 100.0 | 100.0 | 100.0 | 99.9 |
| Average number of active threads | 1.999 | 3.998 | 7.996 | 15.988 | 25.970 | 51.881 |
| Affinity Stability (%) | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Time in analyzed loops (%) | 99.7 | 98.8 | 96.5 | 93.4 | 89.7 | 82.8 |
| Time in analyzed innermost loops (%) | 51.2 | 51.0 | 50.1 | 49.1 | 47.9 | 47.0 |
| Time in user code (%) | 99.7 | 98.8 | 96.5 | 93.4 | 89.7 | 82.8 |
| Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 |
| Array Access Efficiency (%) | 75.7 | 75.8 | 75.9 | 76.2 | 76.7 | 78.3 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Perfect OpenMP/MPI/Pthread/TBB | 1.00 | 1.00 | 1.00 | 1.01 | 1.02 | 1.07 |
| Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.00 | 1.01 | 1.04 | 1.07 | 1.11 | 1.21 |
| Scalability - Gap | 1.00 | 1.02 | 1.05 | 1.10 | 1.16 | 1.34 |
| No Scalar Integer | Potential Speedup | 1.54 | 1.53 | 1.52 | 1.49 | 1.47 | 1.43 |
| Nb Loops to get 80% | 6 | 6 | 6 | 6 | 6 | 6 |
| FP Vectorised | Potential Speedup | 4.02 | 3.92 | 3.67 | 3.39 | 3.10 | 2.71 |
| Nb Loops to get 80% | 7 | 7 | 6 | 6 | 6 | 7 |
| Fully Vectorised | Potential Speedup | 5.70 | 5.50 | 4.98 | 4.41 | 3.89 | 3.21 |
| Nb Loops to get 80% | 7 | 7 | 7 | 7 | 7 | 7 |
| Only FP Arithmetic | Potential Speedup | 1.80 | 1.79 | 1.76 | 1.72 | 1.67 | 1.60 |
| Nb Loops to get 80% | 6 | 6 | 6 | 6 | 6 | 6 |
| Source Object | Issue |
|---|
| ▼md-gcc-Ofast– | |
| ▼simulation.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼md-gcc-Ofast– | |
| ▼simulation.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼md-gcc-Ofast– | |
| ▼simulation.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼md-gcc-Ofast– | |
| ▼simulation.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼md-gcc-Ofast– | |
| ▼simulation.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼md-gcc-Ofast– | |
| ▼simulation.cpp– | |
| ○ | |
| r0 | r1 | r2 | r3 | r4 | r5 |
|---|
| Experiment Name | MD scalability Skylake 2-52 threads runs | Version : gcc-Ofast | MD scalability Skylake 2-52 threads runs | Version : gcc-Ofast | MD scalability Skylake 2-52 threads runs | Version : gcc-Ofast | MD scalability Skylake 2-52 threads runs | Version : gcc-Ofast | MD scalability Skylake 2-52 threads runs | Version : gcc-Ofast | MD scalability Skylake 2-52 threads runs | Version : gcc-Ofast |
|---|
| Application | ./bin/md-gcc-Ofast | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Timestamp | 2025-08-19 19:02:57 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Experiment Type | OpenMP; | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Machine | skylake | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Architecture | x86_64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Micro Architecture | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Model Name | Intel(R) Xeon(R) Platinum 8170 CPU @ 2.10GHz | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Cache Size | 36608 KB | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Number of Cores | 26 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Maximal Frequency | 2.1 GHz | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| OS Version | Linux 6.15.5-arch1-1 #1 SMP PREEMPT_DYNAMIC Sun, 06 Jul 2025 11:14:36 +0000 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Architecture used during static analysis | x86_64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Micro Architecture used during static analysis | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Compilation Options |
md-gcc-Ofast: GNU C++17 15.1.1 20250425 -march=skylake-avx512 -mmmx -mpopcnt -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -mavx -mavx2 -mno-sse4a -mno-fma4 -mno-xop -mfma -mavx512f -mbmi -mbmi2 -maes -mpclmul -mavx512vl -mavx512bw -mavx512dq -mavx512cd -mno-avx512vbmi -mno-avx512ifma -mno-avx512vpopcntdq -mno-avx512vbmi2 -mno-gfni -mno-vpclmulqdq -mno-avx512vnni -mno-avx512bitalg -mno-avx512bf16 -mno-avx512vp2intersect -mno-3dnow -madx -mabm -mno-cldemote -mclflushopt -mclwb -mno-clzero -mcx16 -mno-enqcmd -mf16c -mfsgsbase -mfxsr -mhle -msahf -mno-lwp -mlzcnt -mmovbe -mno-movdir64b -mno-movdiri -mno-mwaitx -mno-pconfig -mpku -mprfchw -mno-ptwrite -mno-rdpid -mrdrnd -mrdseed -mrtm -mno-serialize -mno-sgx -mno-sha -mno-shstk -mno-tbm -mno-tsxldtrk -mno-vaes -mno-waitpkg -mno-wbnoinvd -mxsave -mxsavec -mxsaveopt -mxsaves -mno-amx-tile -mno-amx-int8 -mno-amx-bf16 -mno-uintr -mno-hreset -mno-kl -mno-widekl -mno-avxvnni -mno-avx512fp16 -mno-avxifma -mno-avxvnniint8 -mno-avxneconvert -mno-cmpccxadd -mno-amx-fp16 -mno-prefetchi -mno-raoint -mno-amx-complex -mno-avxvnniint16 -mno-sm3 -mno-sha512 -mno-sm4 -mno-apxf -mno-usermsr -mno-avx10.2 -mno-amx-avx512 -mno-amx-tf32 -mno-amx-transpose -mno-amx-fp8 -mno-movrs -mno-amx-movrs --param=l1-cache-size=32 --param=l1-cache-line-size=64 --param=l2-cache-size=36608 -mtune=skylake-avx512 -g -Ofast -std=c++17 -fopenmp -funroll-loops | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Number of processes observed | 1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Number of threads observed | 2 | 4 | 8 | 16 | 26 | 52 |
|---|
| Frequency Driver | intel_cpufreq | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Frequency Governor | schedutil | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Huge Pages | always | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Hyperthreading | off | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Number of sockets | 2 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Number of cores per socket | 26 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| MAQAO version | 2025.1.2 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| MAQAO build | a5bc9ffe18a557b734e9194b2a08753f23990eca::20250818-184816 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Comments | Molecular Dynamics Dual Socket Intel Xeon Platinum 8170 (Skylake CPU), 2-52 threads runs | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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