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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) | 90.54 | 52.49 | 31.13 | 20.19 | 18.81 |
| Max (Thread Active Time) (s) | 90.44 | 52.36 | 31.04 | 20.12 | 18.77 |
| Average Active Time (s) | 90.44 | 51.09 | 28.88 | 17.38 | 15.92 |
| Activity Ratio (%) | 99.9 | 97.4 | 92.8 | 86.1 | 84.7 |
| Average number of active threads | 0.999 | 1.947 | 3.710 | 6.884 | 8.464 |
| Affinity Stability (%) | 100.0 | 99.9 | 99.7 | 99.4 | 99.4 |
| GFLOPS | 8.421 | 14.525 | 24.486 | 37.741 | 40.513 |
| Time in analyzed loops (%) | 100.0 | 95.2 | 87.4 | 75.6 | 72.6 |
| Time in analyzed innermost loops (%) | 52.7 | 47.6 | 43.9 | 38.7 | 35.4 |
| Time in user code (%) | 100.0 | 95.2 | 87.4 | 75.6 | 72.6 |
| Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 |
| Array Access Efficiency (%) | 92.2 | 92.4 | 92.4 | 92.7 | 93.0 |
|
| 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 | 1.08 | 1.23 | 1.53 | 1.62 |
| Scalability - Gap | 1.00 | 1.16 | 1.38 | 1.78 | 2.08 |
| No Scalar Integer | Potential Speedup | 1.02 | 1.02 | 1.02 | 1.01 | 1.01 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.19 | 1.17 | 1.15 | 1.13 | 1.12 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 |
| Fully Vectorised | Potential Speedup | 4.23 | 3.67 | 3.01 | 2.37 | 2.25 |
| Nb Loops to get 80% | 4 | 3 | 3 | 3 | 3 |
| Only FP Arithmetic | Potential Speedup | 1.88 | 1.86 | 1.73 | 1.56 | 1.56 |
| Nb Loops to get 80% | 2 | 1 | 1 | 1 | 1 |
| Source Object | Issue |
| ▼kmeans-icpx-O3-funroll-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-funroll-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-funroll-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-funroll-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-funroll-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| r0 | r1 | r2 | r3 | r4 |
| Experiment Name | K-Means scalability icpx-O3-funroll-soa 100000000 | K-Means scalability icpx-O3-funroll-soa 100000000 | K-Means scalability icpx-O3-funroll-soa 100000000 | K-Means scalability icpx-O3-funroll-soa 100000000 | K-Means scalability icpx-O3-funroll-soa 100000000 |
| Application | ./kmeans/kmeans-icpx-O3-funroll-soa | same as r0 | same as r0 | same as r0 | same as r0 |
| Timestamp | 2025-07-04 11:38:36 | 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-O3-funroll-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 -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 |