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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) | 237.93 | 123.89 | 67.49 | 39.40 | 25.28 | 19.86 |
Max (Thread Active Time) (s) | 237.70 | 123.80 | 67.39 | 39.31 | 25.19 | 19.78 |
Average Active Time (s) | 237.70 | 120.61 | 62.65 | 33.73 | 19.25 | 13.69 |
Activity Ratio (%) | 99.9 | 97.4 | 92.9 | 85.7 | 76.3 | 69.1 |
Average number of active threads | 0.999 | 1.947 | 3.713 | 6.849 | 12.186 | 17.926 |
Affinity Stability (%) | 100.0 | 99.9 | 99.7 | 99.4 | 99.0 | 98.7 |
GFLOPS | 3.173 | 6.093 | 11.184 | 19.157 | 29.846 | 37.978 |
Time in analyzed loops (%) | 100.0 | 98.0 | 94.3 | 87.6 | 76.7 | 66.4 |
Time in analyzed innermost loops (%) | 96.8 | 94.8 | 91.2 | 84.6 | 74.2 | 64.2 |
Time in user code (%) | 100 | 98.0 | 94.3 | 87.6 | 76.7 | 66.4 |
Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 |
Array Access Efficiency (%) | 96.9 | 96.8 | 96.8 | 96.8 | 96.8 | 96.8 |
|
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 | 1.14 | 1.33 | 1.71 | 2.18 |
Scalability - Gap | 1.00 | 1.04 | 1.13 | 1.32 | 1.70 | 2.17 |
No Scalar Integer | Potential Speedup | 1.03 | 1.03 | 1.03 | 1.03 | 1.03 | 1.02 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
FP Vectorised | Potential Speedup | 1.94 | 1.90 | 1.84 | 1.73 | 1.59 | 1.47 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 7.40 | 6.57 | 5.42 | 4.12 | 2.97 | 2.35 |
Nb Loops to get 80% | 3 | 3 | 3 | 3 | 2 | 2 |
Only FP Arithmetic | Potential Speedup | 1.06 | 1.06 | 1.06 | 1.05 | 1.05 | 1.04 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
Source Object | Issue |
▼kmeans-icpx-O3-all-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all-soa– | |
▼main_soa.cpp– | |
○ | |
| r0 | r1 | r2 | r3 | r4 | r5 |
Experiment Name | K-Means scalability icpx-O3-all-soa 100000000 | K-Means scalability icpx-O3-all-soa 100000000 | K-Means scalability icpx-O3-all-soa 100000000 | K-Means scalability icpx-O3-all-soa 100000000 | K-Means scalability icpx-O3-all-soa 100000000 | K-Means scalability icpx-O3-all-soa 100000000 |
Application | ./kmeans/kmeans-icpx-O3-all-soa | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Timestamp | 2025-07-03 17:40:36 | 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-all-soa: 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 -funroll-loops -ffast-math -c -o main_soa.o main_soa.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 |