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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) | 155.41 | 83.30 | 47.25 | 29.23 | 20.23 | 16.82 |
Max (Thread Active Time) (s) | 155.09 | 83.15 | 47.13 | 29.14 | 20.16 | 16.73 |
Average Active Time (s) | 155.09 | 79.96 | 42.34 | 23.57 | 14.17 | 10.56 |
Activity Ratio (%) | 99.8 | 96.0 | 89.7 | 80.7 | 70.2 | 62.9 |
Average number of active threads | 0.998 | 1.920 | 3.585 | 6.451 | 11.210 | 16.330 |
Affinity Stability (%) | 100.0 | 99.8 | 99.6 | 99.2 | 98.7 | 98.4 |
GFLOPS | 4.054 | 7.563 | 13.331 | 21.544 | 31.129 | 37.436 |
Time in analyzed loops (%) | 100.0 | 97.0 | 91.6 | 82.2 | 68.4 | 56.4 |
Time in analyzed innermost loops (%) | 96.3 | 93.5 | 88.2 | 79.2 | 65.8 | 54.4 |
Time in user code (%) | 100.0 | 97.0 | 91.6 | 82.2 | 68.4 | 56.4 |
Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 |
Array Access Efficiency (%) | 61.7 | 62.3 | 62.2 | 62.2 | 62.1 | 62.1 |
|
Potential Speedups |  |
Perfect Flow Complexity | 3.54 | 3.28 | 2.91 | 2.43 | 1.96 | 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 | 2.80 |
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 | 1.92 | 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 | 4.54 | 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-all– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-O3-all– | |
▼main.cpp– | |
○ | |
| r0 | r1 | r2 | r3 | r4 | r5 |
Experiment Name | K-Means scalability icpx-O3-all 100000000 | K-Means scalability icpx-O3-all 100000000 | K-Means scalability icpx-O3-all 100000000 | K-Means scalability icpx-O3-all 100000000 | K-Means scalability icpx-O3-all 100000000 | K-Means scalability icpx-O3-all 100000000 |
Application | ./kmeans/kmeans-icpx-O3-all | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Timestamp | 2025-06-23 16:08:06 | 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: 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 -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 |