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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) | 225.44 | 117.74 | 63.45 | 36.66 | 22.92 | 16.19 | 13.92 | 12.82 |
Max (Thread Active Time) (s) | 225.14 | 117.58 | 63.33 | 36.56 | 22.86 | 16.13 | 13.86 | 12.73 |
Average Active Time (s) | 225.14 | 114.69 | 59.14 | 31.75 | 17.67 | 10.79 | 8.49 | 7.30 |
Activity Ratio (%) | 99.9 | 97.4 | 93.2 | 86.6 | 77.1 | 66.7 | 61.1 | 57.1 |
Average number of active threads | 0.999 | 1.948 | 3.728 | 6.929 | 12.330 | 21.333 | 29.276 | 36.474 |
Affinity Stability (%) | 100.0 | 99.9 | 99.7 | 99.5 | 99.1 | 98.7 | 98.4 | 98.3 |
GFLOPS | 3.998 | 7.656 | 14.208 | 24.583 | 39.318 | 55.681 | 64.739 | 70.331 |
Time in analyzed loops (%) | 100.0 | 98.4 | 95.2 | 89.5 | 80.1 | 65.9 | 56.0 | 48.9 |
Time in analyzed innermost loops (%) | 80.6 | 79.2 | 77.1 | 72.0 | 64.4 | 53.1 | 45.3 | 39.5 |
Time in user code (%) | 100 | 98.4 | 95.2 | 89.5 | 80.2 | 65.9 | 56.0 | 48.9 |
Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
Array Access Efficiency (%) | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 | 50.0 |
|
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/TBB | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.00 | 1.04 | 1.12 | 1.29 | 1.61 | 2.27 | 2.91 | 3.56 |
Scalability - Gap | 1.00 | 1.04 | 1.13 | 1.30 | 1.63 | 2.30 | 2.96 | 3.64 |
No Scalar Integer | Potential Speedup | 1.06 | 1.06 | 1.06 | 1.05 | 1.05 | 1.04 | 1.03 | 1.03 |
Nb Loops to get 80% | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 |
FP Vectorised | Potential Speedup | 1.52 | 1.51 | 1.49 | 1.44 | 1.38 | 1.29 | 1.24 | 1.20 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 5.08 | 4.76 | 4.25 | 3.55 | 2.81 | 2.13 | 1.82 | 1.65 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Only FP Arithmetic | Potential Speedup | 1.08 | 1.08 | 1.08 | 1.07 | 1.06 | 1.05 | 1.04 | 1.04 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3-soa– | |
▼main_soa.cpp– | |
○ | |
| r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 |
Experiment Name | K-Means scalability acfl-O3-soa 100000000 | K-Means scalability acfl-O3-soa 100000000 | K-Means scalability acfl-O3-soa 100000000 | K-Means scalability acfl-O3-soa 100000000 | K-Means scalability acfl-O3-soa 100000000 | K-Means scalability acfl-O3-soa 100000000 | K-Means scalability acfl-O3-soa 100000000 | K-Means scalability acfl-O3-soa 100000000 |
Application | ./kmeans/kmeans-acfl-O3-soa | 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 11:22:27 | 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-soa: 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 -grecord-command-line -c -o main_soa.o main_soa.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 | d6222087d529d549c11e227a1cd513200c205d3a::20250704-175912 | 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 |