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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) | 127.00 | 69.06 | 40.11 | 24.16 | 20.88 |
| Max (Thread Active Time) (s) | 126.58 | 68.39 | 39.78 | 24.11 | 20.83 |
| Average Active Time (s) | 126.58 | 67.11 | 37.67 | 21.59 | 18.24 |
| Activity Ratio (%) | 99.7 | 97.2 | 93.9 | 89.4 | 87.4 |
| Average number of active threads | 0.997 | 1.944 | 3.757 | 7.151 | 8.736 |
| Affinity Stability (%) | 100.0 | 99.9 | 99.8 | 99.6 | 99.5 |
| GFLOPS | 4.961 | 9.123 | 15.706 | 26.076 | 30.170 |
| Time in analyzed loops (%) | 100.0 | 96.4 | 90.5 | 80.5 | 76.2 |
| Time in analyzed innermost loops (%) | 97.6 | 94.1 | 88.3 | 78.5 | 74.3 |
| 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 (%) | 96.2 | 96.2 | 96.2 | 96.3 | 96.3 |
|
| 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 | 1.52 | 1.64 |
| 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 | 9.96 | 7.56 | 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-funroll– | |
| ▼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-funroll– | |
| ▼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-funroll– | |
| ▼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-funroll– | |
| ▼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-funroll– | |
| ▼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-funroll 100000000 | K-Means scalability clang-O3-funroll 100000000 | K-Means scalability clang-O3-funroll 100000000 | K-Means scalability clang-O3-funroll 100000000 | K-Means scalability clang-O3-funroll 100000000 |
|---|
| Application | ./kmeans/kmeans-clang-O3-funroll | same as r0 | same as r0 | same as r0 | same as r0 |
|---|
| Timestamp | 2025-06-26 12:03:23 | 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-funroll: 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 |
|---|
