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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) | 126.89 | 69.03 | 40.12 | 24.23 | 20.91 |
| Max (Thread Active Time) (s) | 126.62 | 68.43 | 39.75 | 24.19 | 20.86 |
| Average Active Time (s) | 126.62 | 67.15 | 37.64 | 21.60 | 18.24 |
| Activity Ratio (%) | 99.8 | 97.3 | 93.8 | 89.2 | 87.3 |
| Average number of active threads | 0.998 | 1.946 | 3.753 | 7.132 | 8.726 |
| Affinity Stability (%) | 100.0 | 99.9 | 99.8 | 99.5 | 99.5 |
| GFLOPS | 4.965 | 9.127 | 15.703 | 25.998 | 30.130 |
| Time in analyzed loops (%) | 100.0 | 96.4 | 90.5 | 80.5 | 76.2 |
| Time in analyzed innermost loops (%) | 97.5 | 94.0 | 88.2 | 78.4 | 74.2 |
| Time in user code (%) | 100.0 | 96.4 | 90.5 | 80.5 | 76.2 |
| Compilation Options Score (%) | 16.7 | 16.7 | 16.7 | 16.7 | 16.7 |
| Array Access Efficiency (%) | 96.1 | 96.2 | 96.2 | 96.2 | 96.2 |
|
| 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 | 1.00 | 1.00 |
| Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.06 | 1.17 | 1.39 | 1.50 |
| Scalability - Gap | 1.00 | 1.09 | 1.26 | 1.53 | 1.65 |
| No Scalar Integer | Potential Speedup | 1.26 | 1.24 | 1.23 | 1.20 | 1.18 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 2.33 | 2.23 | 2.07 | 1.85 | 1.77 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 9.97 | 7.55 | 5.38 | 3.62 | 3.18 |
| Nb Loops to get 80% | 3 | 2 | 2 | 2 | 2 |
| Only FP Arithmetic | Potential Speedup | 1.37 | 1.35 | 1.32 | 1.28 | 1.26 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 |
| Source Object | Issue |
| ▼kmeans-clang-O3– | |
| ▼main.cpp– | |
| ○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
| ○ | -O2, -O3 or -Ofast is missing. |
| ○ | -march=(target) is missing. |
| Source Object | Issue |
| ▼kmeans-clang-O3– | |
| ▼main.cpp– | |
| ○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
| ○ | -O2, -O3 or -Ofast is missing. |
| ○ | -march=(target) is missing. |
| Source Object | Issue |
| ▼kmeans-clang-O3– | |
| ▼main.cpp– | |
| ○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
| ○ | -O2, -O3 or -Ofast is missing. |
| ○ | -march=(target) is missing. |
| Source Object | Issue |
| ▼kmeans-clang-O3– | |
| ▼main.cpp– | |
| ○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
| ○ | -O2, -O3 or -Ofast is missing. |
| ○ | -march=(target) is missing. |
| Source Object | Issue |
| ▼kmeans-clang-O3– | |
| ▼main.cpp– | |
| ○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
| ○ | -O2, -O3 or -Ofast is missing. |
| ○ | -march=(target) is missing. |
| r0 | r1 | r2 | r3 | r4 |
| Experiment Name | K-Means scalability clang-O3 100000000 | K-Means scalability clang-O3 100000000 | K-Means scalability clang-O3 100000000 | K-Means scalability clang-O3 100000000 | K-Means scalability clang-O3 100000000 |
| Application | ./kmeans/kmeans-clang-O3 | same as r0 | same as r0 | same as r0 | same as r0 |
| Timestamp | 2025-06-26 11:58:15 | 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 6.12.1-arch1-1 #1 SMP PREEMPT_DYNAMIC Fri, 22 Nov 2024 16:04:27 +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-clang-O3: clang version 20.1.6 | 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 | performance | 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 |