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- r0: run_1_thread
- r1: run_2_threads
- r2: run_4_threads
- r3: run_8_threads
- r4: run_16_threads
- r5: run_32_threads
- r6: run_48_threads
- r7: run_64_threads
- r8: run_80_threads
- r9: run_96_threads
| Metric | r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 | r8 | r9 |
|---|
| Total Time (s) | 97.04 | 54.54 | 31.13 | 19.72 | 14.14 | 11.10 | 10.00 | 9.55 | 9.21 | 9.00 |
| Max (Thread Active Time) (s) | 96.81 | 54.05 | 30.84 | 19.42 | 13.91 | 10.98 | 9.93 | 9.45 | 9.12 | 8.92 |
| Average Active Time (s) | 96.81 | 51.12 | 27.38 | 15.74 | 10.04 | 7.36 | 6.43 | 5.93 | 5.62 | 5.50 |
| Activity Ratio (%) | 99.8 | 93.7 | 88.0 | 79.8 | 71.0 | 66.4 | 64.4 | 62.2 | 61.1 | 61.3 |
| Average number of active threads | 0.998 | 1.875 | 3.518 | 6.385 | 11.354 | 21.237 | 30.887 | 39.725 | 48.814 | 58.678 |
| Affinity Stability (%) | 100.0 | 99.8 | 99.6 | 99.1 | 98.8 | 98.6 | 98.5 | 98.4 | 98.3 | 98.1 |
| GFLOPS | 7.083 | 12.662 | 21.976 | 34.556 | 48.650 | 65.612 | 75.606 | 79.572 | 82.573 | 70.028 |
| Time in analyzed loops (%) | 100.0 | 95.2 | 87.5 | 75.6 | 59.7 | 43.3 | 34.6 | 28.6 | 24.4 | 22.5 |
| Time in analyzed innermost loops (%) | 98.9 | 94.2 | 86.6 | 74.8 | 59.1 | 42.8 | 34.3 | 28.3 | 24.2 | 22.3 |
| Time in user code (%) | 100 | 95.2 | 87.5 | 75.6 | 59.7 | 43.3 | 34.6 | 28.6 | 24.4 | 22.5 |
| Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Array Access Efficiency (%) | 95.2 | 95.2 | 95.1 | 95.1 | 95.1 | 95.4 | 95.6 | 95.6 | 95.7 | 96.1 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Perfect OpenMP + MPI + Pthread | 1.00 | 1.01 | 1.03 | 1.05 | 1.06 | 1.03 | 1.01 | 1.01 | 1.01 | 1.01 |
| Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.11 | 1.29 | 1.63 | 2.32 | 3.45 | 4.46 | 5.58 | 6.65 | 7.20 |
| Scalability - Gap | 1.00 | 1.12 | 1.28 | 1.63 | 2.33 | 3.66 | 4.95 | 6.30 | 7.59 | 8.90 |
| No Scalar Integer | Potential Speedup | 1.02 | 1.02 | 1.02 | 1.02 | 1.01 | 1.01 | 1.01 | 1.01 | 1.01 | 1.00 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.02 | 1.02 | 1.02 | 1.01 | 1.01 | 1.01 | 1.01 | 1.00 | 1.00 | 1.00 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 1.20 | 1.19 | 1.17 | 1.15 | 1.11 | 1.08 | 1.06 | 1.05 | 1.04 | 1.04 |
| Nb Loops to get 80% | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Only FP Arithmetic | Potential Speedup | 1.05 | 1.05 | 1.05 | 1.04 | 1.03 | 1.02 | 1.02 | 1.01 | 1.01 | 1.01 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
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| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
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| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
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| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
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| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
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| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
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| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 | r8 | r9 |
|---|
| Experiment Name | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 |
|---|
| Application | ./kmeans/kmeans-acfl-Ofast | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Timestamp | 2025-07-07 09:36:44 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Experiment Type | Sequential | OpenMP; | same as r1 | same as r1 | same as r1 | same as r1 | same as r1 | same as r1 | same as r1 | same as r1 |
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| Machine | ip-172-31-47-249.ec2.internal | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Architecture | aarch64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Micro Architecture | ARM_NEOVERSE_V2 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Model Name | | | | | | | | | | |
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| Cache Size | | | | | | | | | | |
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| Number of Cores | | | | | | | | | | |
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| Maximal Frequency | 0 GHz | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| OS Version | Linux 6.1.109-118.189.amzn2023.aarch64 #1 SMP Tue Sep 10 08:58:40 UTC 2024 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Architecture used during static analysis | aarch64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Micro Architecture used during static analysis | ARM_NEOVERSE_V2 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Compilation Options |
kmeans-acfl-Ofast: Arm C/C++/Fortran Compiler version 24.10.1 (build number 4) (based on LLVM 19.1.0) /opt/arm/arm-linux-compiler-24.10.1_AmazonLinux-2023/llvm-bin/clang-19 --driver-mode=g++ -I . -MMD -MP -march=native -std=c++14 -g -fno-omit-frame-pointer -fopenmp -Ofast -grecord-command-line -c -o main.o main.cpp | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Number of processes observed | 1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Number of threads observed | 1 | 2 | 4 | 8 | 16 | 32 | 48 | 64 | 80 | 96 |
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| Frequency Driver | NA | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Frequency Governor | NA | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Huge Pages | madvise | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Hyperthreading | off | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Number of sockets | 1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Number of cores per socket | 96 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| MAQAO version | 2025.1.1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| MAQAO build | f3e40b5f1dbd62488bc0cc5f885d40677c87bfe8::20250630-094248 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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| Comments | AWS Graviton 4 (Neoverse V2) CPU, 1-96 threads runs | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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