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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) | 148.56 | 79.85 | 45.54 | 28.39 | 19.82 | 16.54 |
| Max (Thread Active Time) (s) | 148.29 | 79.67 | 45.42 | 28.30 | 19.74 | 16.44 |
| Average Active Time (s) | 148.29 | 76.48 | 40.63 | 22.71 | 13.74 | 10.31 |
| Activity Ratio (%) | 99.8 | 95.8 | 89.3 | 80.1 | 69.4 | 62.5 |
| Average number of active threads | 0.998 | 1.916 | 3.569 | 6.399 | 11.092 | 16.204 |
| Affinity Stability (%) | 100.0 | 99.8 | 99.5 | 99.1 | 98.7 | 98.4 |
| GFLOPS | 4.240 | 7.889 | 13.832 | 22.186 | 31.770 | 38.071 |
| Time in analyzed loops (%) | 100.0 | 96.9 | 91.1 | 81.6 | 67.3 | 55.3 |
| Time in analyzed innermost loops (%) | 99.0 | 95.8 | 90.2 | 80.7 | 66.6 | 54.8 |
| Time in user code (%) | 100 | 96.9 | 91.2 | 81.6 | 67.3 | 55.3 |
| Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 |
| Array Access Efficiency (%) | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 | 40.0 |
|
| Potential Speedups |  |
| Perfect Flow Complexity | 4.13 | 3.75 | 3.23 | 2.62 | 2.04 | 1.72 |
| 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 | 1.08 | 1.23 | 1.53 | 2.13 | 2.88 |
| Scalability - Gap | 1.00 | 1.07 | 1.23 | 1.53 | 2.14 | 2.89 |
| No Scalar Integer | Potential Speedup | 1.10 | 1.10 | 1.09 | 1.08 | 1.07 | 1.05 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.95 | 1.90 | 1.80 | 1.66 | 1.49 | 1.37 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 6.02 | 5.20 | 4.17 | 3.13 | 2.28 | 1.86 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 1 | 1 |
| Only FP Arithmetic | Potential Speedup | 1.47 | 1.45 | 1.41 | 1.35 | 1.28 | 1.22 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 | r2 | r3 | r4 | r5 |
| Experiment Name | K-Means scalability icpx-O3-aggressive 100000000 | K-Means scalability icpx-O3-aggressive 100000000 | K-Means scalability icpx-O3-aggressive 100000000 | K-Means scalability icpx-O3-aggressive 100000000 | K-Means scalability icpx-O3-aggressive 100000000 | K-Means scalability icpx-O3-aggressive 100000000 |
| Application | ./kmeans/kmeans-icpx-O3-aggressive | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
| Timestamp | 2025-06-23 16:14:50 | 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-icpx-O3-aggressive: clang based Intel(R) oneAPI DPC++/C++ Compiler 2024.2.1 (2024.2.1.20240711) --driver-mode=g++ --intel -I . -MMD -MP -march=native -std=c++14 -g -fno-omit-frame-pointer -fiopenmp -O3 -x Host -funroll-loops -ffast-math -qopt-report=5 -c -o main.o main.cpp -fveclib=SVML -faltmathlib=SVML -fheinous-gnu-extensions | 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 |