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- r0: run_1_thread
- r1: run_2_threads
- r2: run_4_threads
- r3: run_8_threads
- r4: run_16_threads
- r5: run_26_threads
Metric | r0 | r1 | r2 | r3 | r4 | r5 |
---|
Total Time (s) | 229.28 | 120.24 | 65.73 | 38.47 | 24.85 | 19.64 |
Max (Thread Active Time) (s) | 228.95 | 120.04 | 65.60 | 38.38 | 24.77 | 19.54 |
Average Active Time (s) | 228.95 | 116.85 | 60.83 | 32.81 | 18.78 | 13.40 |
Activity Ratio (%) | 99.9 | 97.2 | 92.6 | 85.3 | 75.7 | 68.4 |
Average number of active threads | 0.999 | 1.944 | 3.702 | 6.823 | 12.092 | 17.741 |
Affinity Stability (%) | 100.0 | 99.9 | 99.7 | 99.4 | 99.0 | 98.6 |
GFLOPS | 3.293 | 6.279 | 11.486 | 19.622 | 30.373 | 38.434 |
Time in analyzed loops (%) | 100.0 | 97.9 | 94.1 | 87.2 | 76.1 | 65.7 |
Time in analyzed innermost loops (%) | 97.9 | 95.8 | 91.8 | 85.2 | 74.3 | 64.3 |
Time in user code (%) | 100.0 | 97.9 | 94.1 | 87.2 | 76.1 | 65.7 |
Compilation Options Score (%) | 16.7 | 16.7 | 16.7 | 16.7 | 16.7 | 16.7 |
Array Access Efficiency (%) | 97.5 | 97.5 | 97.5 | 97.5 | 97.5 | 97.5 |
|
Potential Speedups |  |
Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Perfect OpenMP + MPI + Pthread | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.05 | 1.15 | 1.34 | 1.73 | 2.22 |
Scalability - Gap | 1.00 | 1.05 | 1.15 | 1.34 | 1.73 | 2.23 |
No Scalar Integer | Potential Speedup | 1.02 | 1.02 | 1.02 | 1.02 | 1.02 | 1.02 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
FP Vectorised | Potential Speedup | 2.14 | 2.09 | 2.00 | 1.86 | 1.68 | 1.54 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 9.48 | 8.08 | 6.32 | 4.55 | 3.14 | 2.43 |
Nb Loops to get 80% | 3 | 3 | 3 | 3 | 2 | 2 |
Only FP Arithmetic | Potential Speedup | 1.05 | 1.05 | 1.05 | 1.05 | 1.04 | 1.03 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
Source Object | Issue |
▼kmeans-clang-O3-ffast-math-soa– | |
▼main_soa.cpp– | |
○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
○ | -O2, -O3 or -Ofast is missing. |
○ | -march=(target) is missing. |
Source Object | Issue |
▼kmeans-clang-O3-ffast-math-soa– | |
▼main_soa.cpp– | |
○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
○ | -O2, -O3 or -Ofast is missing. |
○ | -march=(target) is missing. |
Source Object | Issue |
▼kmeans-clang-O3-ffast-math-soa– | |
▼main_soa.cpp– | |
○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
○ | -O2, -O3 or -Ofast is missing. |
○ | -march=(target) is missing. |
Source Object | Issue |
▼kmeans-clang-O3-ffast-math-soa– | |
▼main_soa.cpp– | |
○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
○ | -O2, -O3 or -Ofast is missing. |
○ | -march=(target) is missing. |
Source Object | Issue |
▼kmeans-clang-O3-ffast-math-soa– | |
▼main_soa.cpp– | |
○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
○ | -O2, -O3 or -Ofast is missing. |
○ | -march=(target) is missing. |
Source Object | Issue |
▼kmeans-clang-O3-ffast-math-soa– | |
▼main_soa.cpp– | |
○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
○ | -O2, -O3 or -Ofast is missing. |
○ | -march=(target) is missing. |
| r0 | r1 | r2 | r3 | r4 | r5 |
Experiment Name | K-Means scalability clang-O3-ffast-math-soa 100000000 | K-Means scalability clang-O3-ffast-math-soa 100000000 | K-Means scalability clang-O3-ffast-math-soa 100000000 | K-Means scalability clang-O3-ffast-math-soa 100000000 | K-Means scalability clang-O3-ffast-math-soa 100000000 | K-Means scalability clang-O3-ffast-math-soa 100000000 |
Application | ./kmeans/kmeans-clang-O3-ffast-math-soa | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Timestamp | 2025-07-03 18:37:47 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Experiment Type | Sequential | OpenMP; | same as r1 | same as r1 | same as r1 | same as r1 |
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 6.10.10-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 12 Sep 2024 17:21:02 +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 |
kmeans-clang-O3-ffast-math-soa: clang version 20.1.6 | 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 | 1 | 2 | 4 | 8 | 16 | 26 |
Frequency Driver | intel_cpufreq | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Frequency Governor | performance | 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 |
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 | 2025.1.0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
MAQAO build | e913a471001afb562449956a906221b5bfa8ea0d::20250617-163738 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Comments | Intel Xeon Platinum 8170 (Skylake CPU), 1-26 threads runs | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |