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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) | 185.70 | 96.90 | 52.17 | 29.88 | 18.75 | 13.18 | 11.32 | 10.44 | 9.89 | 9.53 |
Max (Thread Active Time) (s) | 185.49 | 96.77 | 52.04 | 29.81 | 18.71 | 13.13 | 11.25 | 10.36 | 9.82 | 9.45 |
Average Active Time (s) | 185.49 | 93.03 | 46.47 | 23.29 | 11.68 | 5.88 | 3.94 | 2.97 | 2.38 | 1.98 |
Activity Ratio (%) | 99.9 | 96.0 | 89.1 | 78.0 | 62.3 | 44.7 | 34.8 | 28.5 | 24.1 | 20.9 |
Average number of active threads | 0.999 | 1.920 | 3.563 | 6.236 | 9.970 | 14.281 | 16.694 | 18.214 | 19.238 | 20.002 |
Affinity Stability (%) | 100.0 | 99.8 | 99.5 | 99.0 | 98.3 | 97.6 | 97.1 | 96.8 | 96.6 | 96.4 |
GFLOPS | 4.739 | 9.082 | 16.869 | 29.458 | 46.930 | 66.748 | 77.677 | 84.171 | 88.913 | 92.068 |
Time in analyzed loops (%) | 100.0 | 100.0 | 100.0 | 100.0 | 99.9 | 99.9 | 99.8 | 99.9 | 99.8 | 99.7 |
Time in analyzed innermost loops (%) | 89.1 | 89.0 | 89.0 | 89.3 | 89.1 | 89.1 | 89.0 | 89.2 | 89.1 | 88.9 |
Time in user code (%) | 100 | 100 | 100.0 | 100.0 | 99.9 | 99.9 | 99.8 | 99.8 | 99.8 | 99.7 |
Compilation Options Score (%) | 75.0 | 75.0 | 75.0 | 75.0 | 75.0 | 75.0 | 75.0 | 75.0 | 75.0 | 75.0 |
Array Access Efficiency (%) | 36.6 | 36.7 | 36.6 | 36.4 | 36.5 | 36.5 | 36.6 | 36.5 | 36.5 | 36.6 |
|
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 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.04 | 1.12 | 1.28 | 1.60 | 2.23 | 2.86 | 3.49 | 4.14 | 4.77 |
Scalability - Gap | 1.00 | 1.04 | 1.12 | 1.29 | 1.62 | 2.27 | 2.93 | 3.60 | 4.26 | 4.92 |
No Scalar Integer | Potential Speedup | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
FP Vectorised | Potential Speedup | 1.34 | 1.34 | 1.34 | 1.34 | 1.34 | 1.34 | 1.34 | 1.34 | 1.34 | 1.34 |
Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Fully Vectorised | Potential Speedup | 2.46 | 2.46 | 2.46 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Only FP Arithmetic | Potential Speedup | 1.06 | 1.06 | 1.06 | 1.06 | 1.06 | 1.06 | 1.06 | 1.06 | 1.06 | 1.06 |
Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
| r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 | r8 | r9 |
Experiment Name | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 | K-Means scalability gcc-O3-soa 100000000 |
Application | ./kmeans/kmeans-gcc-O3-soa | 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 |
Timestamp | 2025-07-08 11:01:50 | 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 |
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 |
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 |
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 |
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 |
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 | same as r0 | same as r0 |
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 |
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 |
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 |
Compilation Options |
kmeans-gcc-O3-soa: GNU C++14 14.2.0 -mlittle-endian -mabi=lp64 -mcpu=neoverse-v2+crc+sve2-aes+sve2-sha3+nossbs -g -O3 -std=c++14 -fno-omit-frame-pointer -fopenmp | 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 |
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 |
Number of threads observed | 1 | 2 | 4 | 8 | 16 | 32 | 48 | 64 | 80 | 96 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |