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- r0: run_1_thread
- r1: run_2_threads
- r2: run_4_threads
- r3: run_8_threads
- r4: run_10_threads
Metric | r0 | r1 | r2 | r3 | r4 |
---|
Total Time (s) | 155.40 | 83.37 | 47.85 | 28.61 | 24.70 |
Max (Thread Active Time) (s) | 155.40 | 83.18 | 47.74 | 28.58 | 24.67 |
Average Active Time (s) | 155.40 | 81.88 | 45.51 | 25.86 | 21.82 |
Activity Ratio (%) | 100 | 98.2 | 95.1 | 90.4 | 88.4 |
Average number of active threads | 1.000 | 1.964 | 3.805 | 7.231 | 8.837 |
Affinity Stability (%) | 100.0 | 99.9 | 99.8 | 99.6 | 99.5 |
GFLOPS | 4.858 | 9.055 | 15.775 | 26.385 | 30.551 |
Time in analyzed loops (%) | 100.0 | 97.0 | 91.9 | 83.6 | 79.9 |
Time in analyzed innermost loops (%) | 96.6 | 94.0 | 88.8 | 80.9 | 77.4 |
Time in user code (%) | 100.0 | 97.0 | 92.0 | 83.6 | 79.9 |
Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 |
Array Access Efficiency (%) | 96.8 | 96.9 | 96.8 | 96.9 | 96.9 |
|
Potential Speedups |  |
Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Perfect OpenMP + MPI + Pthread | 1.00 | 1.00 | 1.00 | 1.01 | 1.01 |
Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.05 | 1.14 | 1.32 | 1.41 |
Scalability - Gap | 1.00 | 1.07 | 1.23 | 1.47 | 1.59 |
No Scalar Integer | Potential Speedup | 1.03 | 1.03 | 1.03 | 1.03 | 1.03 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 |
FP Vectorised | Potential Speedup | 1.93 | 1.88 | 1.80 | 1.68 | 1.63 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 7.40 | 6.19 | 4.89 | 3.61 | 3.24 |
Nb Loops to get 80% | 3 | 3 | 3 | 2 | 2 |
Only FP Arithmetic | Potential Speedup | 1.06 | 1.06 | 1.06 | 1.05 | 1.05 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 |
Source Object | Issue |
▼kmeans-icpx-Ofast-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-Ofast-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-Ofast-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-Ofast-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-icpx-Ofast-soa– | |
▼main_soa.cpp– | |
○ | |
| r0 | r1 | r2 | r3 | r4 |
Experiment Name | K-Means scalability icpx-Ofast-soa 100000000 | K-Means scalability icpx-Ofast-soa 100000000 | K-Means scalability icpx-Ofast-soa 100000000 | K-Means scalability icpx-Ofast-soa 100000000 | K-Means scalability icpx-Ofast-soa 100000000 |
Application | ./kmeans/kmeans-icpx-Ofast-soa | same as r0 | same as r0 | same as r0 | same as r0 |
Timestamp | 2025-07-04 11:55:26 | 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 |
Machine | otterfall | 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 |
Micro Architecture | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 |
Model Name | Intel(R) Xeon(R) Silver 4210R CPU @ 2.40GHz | same as r0 | same as r0 | same as r0 | same as r0 |
Cache Size | 14080 KB | same as r0 | same as r0 | same as r0 | same as r0 |
Number of Cores | 10 | same as r0 | same as r0 | same as r0 | same as r0 |
Maximal Frequency | 3.2 GHz | same as r0 | same as r0 | same as r0 | same as r0 |
OS Version | Linux 6.15.3-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 19 Jun 2025 14:41:19 +0000 | 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 |
Micro Architecture used during static analysis | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 |
Compilation Options |
kmeans-icpx-Ofast-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 -Ofast -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 |
Number of processes observed | 1 | same as r0 | same as r0 | same as r0 | same as r0 |
Number of threads observed | 1 | 2 | 4 | 8 | 10 |
Frequency Driver | intel_pstate | same as r0 | same as r0 | same as r0 | same as r0 |
Frequency Governor | powersave | 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 |
Hyperthreading | off | same as r0 | same as r0 | same as r0 | same as r0 |
Number of sockets | 1 | same as r0 | same as r0 | same as r0 | same as r0 |
Number of cores per socket | 10 | 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 |
MAQAO build | 1cd8232d3b2009bc695f526f903b266bda9bb996::20250623-181852 | same as r0 | same as r0 | same as r0 | same as r0 |
Comments | Intel Xeon 42104R (Cascade Lake CPU), 1-10 threads runs | same as r0 | same as r0 | same as r0 | same as r0 |