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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) | 160.13 | 84.52 | 48.71 | 28.99 | 24.77 |
| Max (Thread Active Time) (s) | 160.09 | 84.33 | 48.60 | 28.95 | 24.71 |
| Average Active Time (s) | 160.09 | 83.11 | 46.51 | 26.38 | 22.06 |
| Activity Ratio (%) | 100.0 | 98.3 | 95.5 | 91.1 | 89.1 |
| Average number of active threads | 1.000 | 1.967 | 3.819 | 7.282 | 8.905 |
| Affinity Stability (%) | 100.0 | 99.9 | 99.8 | 99.6 | 99.5 |
| GFLOPS | 4.715 | 8.933 | 15.498 | 26.044 | 30.478 |
| Time in analyzed loops (%) | 100.0 | 97.0 | 92.1 | 83.9 | 80.2 |
| Time in analyzed innermost loops (%) | 97.0 | 94.1 | 89.4 | 81.4 | 77.9 |
| Time in user code (%) | 100.0 | 97.0 | 92.1 | 83.9 | 80.2 |
| Compilation Options Score (%) | 16.7 | 16.7 | 16.7 | 16.7 | 16.7 |
| Array Access Efficiency (%) | 97.7 | 97.7 | 97.7 | 97.8 | 97.8 |
|
| 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 | 1.13 | 1.31 | 1.40 |
| Scalability - Gap | 1.00 | 1.06 | 1.22 | 1.45 | 1.55 |
| No Scalar Integer | Potential Speedup | 1.03 | 1.03 | 1.03 | 1.02 | 1.02 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 |
| FP Vectorised | Potential Speedup | 2.12 | 2.06 | 1.95 | 1.80 | 1.74 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 9.51 | 7.57 | 5.70 | 4.01 | 3.54 |
| Nb Loops to get 80% | 4 | 3 | 3 | 3 | 3 |
| Only FP Arithmetic | Potential Speedup | 1.06 | 1.05 | 1.05 | 1.04 | 1.04 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 |
| Source Object | Issue |
|---|
| ▼kmeans-clang-O3-soa– | |
| ▼main_soa.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-soa– | |
| ▼main_soa.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-soa– | |
| ▼main_soa.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-soa– | |
| ▼main_soa.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-soa– | |
| ▼main_soa.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-soa 100000000 | K-Means scalability clang-O3-soa 100000000 | K-Means scalability clang-O3-soa 100000000 | K-Means scalability clang-O3-soa 100000000 | K-Means scalability clang-O3-soa 100000000 |
|---|
| Application | ./kmeans/kmeans-clang-O3-soa | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Timestamp | 2025-07-04 12:01:38 | 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-clang-O3-soa: 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 | 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 |
|---|
