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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) | 110.80 | 60.01 | 34.53 | 21.83 | 15.49 | 12.33 | 11.30 | 11.25 |
Max (Thread Active Time) (s) | 9.06 | 9.07 | 9.04 | 8.97 | 9.00 | 8.69 | 9.06 | 8.50 |
Average Active Time (s) | 9.06 | 6.41 | 5.03 | 4.39 | 4.03 | 3.76 | 3.64 | 2.98 |
Activity Ratio (%) | 8.18 | 10.7 | 14.6 | 20.1 | 26.0 | 30.5 | 32.2 | 26.5 |
Average number of active threads | 81.8 E-3 | 0.214 | 0.582 | 1.610 | 4.161 | 9.759 | 15.447 | 16.967 |
Affinity Stability (%) | 96.0 | 96.2 | 96.4 | 96.6 | 96.9 | 97.1 | 97.2 | 97.7 |
GFLOPS | 45.2 E-3 | 83.8 E-3 | 0.152 | 0.318 | 0.643 | 2.345 | 4.672 | 15.217 |
Time in analyzed loops (%) | 100.0 | 70.8 | 45.1 | 26.2 | 15.2 | 10.3 | 9.47 | 18.4 |
Time in analyzed innermost loops (%) | 100.0 | 70.8 | 45.1 | 26.2 | 15.2 | 10.2 | 9.41 | 18.3 |
Time in user code (%) | 100 | 70.8 | 45.1 | 26.2 | 15.2 | 10.3 | 9.47 | 18.4 |
Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
Array Access Efficiency (%) | 40.2 | 40.1 | 40.2 | 41.9 | 45.0 | 58.5 | 66.9 | 86.0 |
|
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 | 2.00 | 3.99 | 7.80 | 14.7 | 22.5 | 26.3 | 15.5 |
Scalability - Gap | 1.00 | 1.08 | 1.25 | 1.58 | 2.24 | 3.56 | 4.89 | 6.50 |
No Scalar Integer | Potential Speedup | 1.42 | 1.26 | 1.15 | 1.08 | 1.04 | 1.02 | 1.02 | 1.01 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
FP Vectorised | Potential Speedup | 1.31 | 1.20 | 1.12 | 1.07 | 1.04 | 1.03 | 1.03 | 1.08 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 |
Fully Vectorised | Potential Speedup | 4.39 | 2.20 | 1.53 | 1.25 | 1.13 | 1.09 | 1.08 | 1.16 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 |
Only FP Arithmetic | Potential Speedup | 2.82 | 1.84 | 1.41 | 1.20 | 1.10 | 1.05 | 1.03 | 1.03 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
Source Object | Issue |
▼kmeans-acfl-O3– | |
▼main.cpp– | |
○ | |
| r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 |
Experiment Name | K-Means scalability acfl-O3 100000000 | K-Means scalability acfl-O3 100000000 | K-Means scalability acfl-O3 100000000 | K-Means scalability acfl-O3 100000000 | K-Means scalability acfl-O3 100000000 | K-Means scalability acfl-O3 100000000 | K-Means scalability acfl-O3 100000000 | K-Means scalability acfl-O3 100000000 |
Application | ./kmeans/kmeans-acfl-O3 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 | same as r0 |
Timestamp | 2025-07-10 10:57:14 | 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 6.8.0-1031-aws #33-Ubuntu SMP Fri Jun 20 17:58:11 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: 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.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 | f763b230967252184a5e61875ae92196728ac8f6::20250710-120157 | 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 |