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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) | 155.48 | 83.35 | 47.29 | 29.24 | 20.24 | 16.81 |
Max (Thread Active Time) (s) | 155.08 | 83.17 | 47.15 | 29.16 | 20.16 | 16.72 |
Average Active Time (s) | 155.08 | 79.97 | 42.36 | 23.58 | 14.17 | 10.56 |
Activity Ratio (%) | 99.7 | 96.0 | 89.6 | 80.7 | 70.1 | 63.0 |
Average number of active threads | 0.997 | 1.919 | 3.583 | 6.450 | 11.206 | 16.337 |
Affinity Stability (%) | 100.0 | 99.8 | 99.6 | 99.2 | 98.7 | 98.4 |
GFLOPS | 4.052 | 7.558 | 13.320 | 21.536 | 31.120 | 37.451 |
Time in analyzed loops (%) | 100.0 | 97.0 | 91.5 | 82.2 | 68.4 | 56.3 |
Time in analyzed innermost loops (%) | 96.3 | 93.4 | 88.1 | 79.2 | 65.9 | 54.4 |
Time in user code (%) | 100.0 | 97.0 | 91.5 | 82.2 | 68.4 | 56.3 |
Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 |
Array Access Efficiency (%) | 61.6 | 61.3 | 61.5 | 61.7 | 61.5 | 61.9 |
|
Potential Speedups |  |
Perfect Flow Complexity | 3.54 | 3.29 | 2.91 | 2.44 | 1.97 | 1.68 |
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 | 1.07 | 1.22 | 1.50 | 2.08 | 2.81 |
Scalability - Gap | 1.00 | 1.07 | 1.22 | 1.50 | 2.08 | 2.81 |
No Scalar Integer | Potential Speedup | 1.27 | 1.26 | 1.24 | 1.21 | 1.17 | 1.14 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
FP Vectorised | Potential Speedup | 1.97 | 1.91 | 1.82 | 1.68 | 1.51 | 1.39 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 6.72 | 5.74 | 4.53 | 3.33 | 2.39 | 1.92 |
Nb Loops to get 80% | 4 | 3 | 3 | 3 | 2 | 2 |
Only FP Arithmetic | Potential Speedup | 1.62 | 1.59 | 1.54 | 1.46 | 1.36 | 1.28 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 |
Source Object | Issue |
▼kmeans-icpx-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3– | |
▼main.cpp– | |
○ | |
| r0 | r1 | r2 | r3 | r4 | r5 |
Experiment Name | K-Means scalability icpx-O3 100000000 | K-Means scalability icpx-O3 100000000 | K-Means scalability icpx-O3 100000000 | K-Means scalability icpx-O3 100000000 | K-Means scalability icpx-O3 100000000 | K-Means scalability icpx-O3 100000000 |
Application | ./kmeans/kmeans-icpx-O3 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Timestamp | 2025-06-19 15:28:19 | 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: 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 -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 |