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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
Metric | r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 |
---|
Total Time (s) | 126.62 | 67.94 | 38.59 | 23.89 | 16.55 | 12.89 | 11.49 | 10.72 |
Max (Thread Active Time) (s) | 126.31 | 67.73 | 38.46 | 23.80 | 16.47 | 12.80 | 11.39 | 10.64 |
Average Active Time (s) | 126.31 | 65.05 | 34.50 | 19.24 | 11.54 | 7.59 | 6.24 | 5.51 |
Activity Ratio (%) | 99.8 | 95.7 | 89.4 | 80.6 | 69.7 | 58.9 | 54.3 | 51.4 |
Average number of active threads | 0.998 | 1.915 | 3.576 | 6.444 | 11.154 | 18.838 | 26.060 | 32.877 |
Affinity Stability (%) | 100.0 | 99.8 | 99.6 | 99.2 | 98.8 | 98.3 | 98.2 | 98.0 |
GFLOPS | 6.003 | 11.189 | 19.697 | 31.817 | 45.932 | 45.589 | 32.559 | 12.667 |
Time in analyzed loops (%) | 100.0 | 97.2 | 91.7 | 82.6 | 69.3 | 51.4 | 40.3 | 32.3 |
Time in analyzed innermost loops (%) | 99.1 | 96.1 | 90.7 | 81.7 | 68.6 | 50.8 | 39.9 | 32.0 |
Time in user code (%) | 100 | 97.2 | 91.8 | 82.6 | 69.3 | 51.4 | 40.3 | 32.3 |
Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
Array Access Efficiency (%) | 95.7 | 95.7 | 95.7 | 95.7 | 95.7 | 95.6 | 95.5 | 95.2 |
|
Potential Speedups |  |
Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Perfect OpenMP + MPI + Pthread | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.01 | 1.00 | 1.00 |
Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.07 | 1.21 | 1.50 | 2.06 | 3.28 | 4.53 | 5.97 |
Scalability - Gap | 1.00 | 1.07 | 1.22 | 1.51 | 2.09 | 3.26 | 4.35 | 5.42 |
No Scalar Integer | Potential Speedup | 1.02 | 1.02 | 1.02 | 1.02 | 1.01 | 1.01 | 1.01 | 1.01 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
FP Vectorised | Potential Speedup | 1.80 | 1.75 | 1.68 | 1.58 | 1.44 | 1.29 | 1.22 | 1.17 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 4.05 | 3.71 | 3.23 | 2.64 | 2.09 | 1.63 | 1.44 | 1.32 |
Nb Loops to get 80% | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
Only FP Arithmetic | Potential Speedup | 1.05 | 1.05 | 1.04 | 1.04 | 1.03 | 1.02 | 1.02 | 1.02 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-funroll– | |
▼main.cpp– | |
○ | |
| r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 |
Experiment Name | K-Means scalability acfl-O3-funroll 100000000 | K-Means scalability acfl-O3-funroll 100000000 | K-Means scalability acfl-O3-funroll 100000000 | K-Means scalability acfl-O3-funroll 100000000 | K-Means scalability acfl-O3-funroll 100000000 | K-Means scalability acfl-O3-funroll 100000000 | K-Means scalability acfl-O3-funroll 100000000 | K-Means scalability acfl-O3-funroll 100000000 |
Application | ./kmeans/kmeans-acfl-O3-funroll | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Timestamp | 2025-07-07 09:14:37 | same as r0 | same as r0 | same as r0 | 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 | same as r1 | same as r1 | same as r1 |
Machine | ip-172-31-18-66 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Architecture | aarch64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Micro Architecture | ARM_NEOVERSE_V1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Model Name | | | | | | | | |
Cache Size | | | | | | | | |
Number of Cores | | | | | | | | |
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 |
OS Version | Linux 6.8.0-1030-aws #32-Ubuntu SMP Wed May 28 19:33:40 UTC 2025 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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 |
Micro Architecture used during static analysis | ARM_NEOVERSE_V1 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Compilation Options |
kmeans-acfl-O3-funroll: 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_Ubuntu-20.04/llvm-bin/clang-19 --driver-mode=g++ -I . -MMD -MP -march=native -std=c++14 -g -fno-omit-frame-pointer -fopenmp -O3 -funroll-loops -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 |
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 |
Number of threads observed | 1 | 2 | 4 | 8 | 16 | 32 | 48 | 64 |
Frequency Driver | NA | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Frequency Governor | NA | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Huge Pages | madvise | same as r0 | same as r0 | same as r0 | 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 | 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 | same as r0 | same as r0 | same as r0 |
Number of cores per socket | 64 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
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 |
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 |
Comments | AWS Graviton 3 (Neoverse V1) CPU, 1-64 threads runs | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |