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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) | 183.03 | 95.36 | 51.71 | 29.58 | 18.62 | 13.17 | 11.34 | 10.47 | 9.97 | 9.65 |
Max (Thread Active Time) (s) | 182.85 | 95.23 | 51.56 | 29.52 | 18.56 | 13.08 | 11.23 | 10.37 | 9.85 | 9.52 |
Average Active Time (s) | 182.85 | 91.49 | 46.00 | 22.99 | 11.57 | 5.87 | 3.95 | 3.02 | 2.46 | 2.11 |
Activity Ratio (%) | 99.9 | 95.9 | 89.0 | 77.7 | 62.2 | 44.6 | 34.9 | 28.9 | 24.7 | 21.9 |
Average number of active threads | 0.999 | 1.919 | 3.559 | 6.217 | 9.945 | 14.251 | 16.726 | 18.491 | 19.710 | 20.969 |
Affinity Stability (%) | 100.0 | 99.8 | 99.5 | 99.0 | 98.3 | 97.6 | 97.1 | 96.8 | 96.6 | 96.5 |
GFLOPS | 3.745 | 7.195 | 13.344 | 23.311 | 37.275 | 53.562 | 62.935 | 69.885 | 73.936 | 79.247 |
Time in analyzed loops (%) | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 99.9 | 99.9 | 99.8 | 99.8 | 99.7 |
Time in analyzed innermost loops (%) | 89.3 | 88.9 | 89.2 | 89.5 | 89.2 | 89.3 | 89.1 | 89.0 | 88.9 | 89.0 |
Time in user code (%) | 100 | 100.0 | 100.0 | 100.0 | 100.0 | 99.9 | 99.9 | 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 (%) | 36.2 | 36.6 | 36.4 | 36.1 | 36.4 | 36.4 | 36.6 | 36.8 | 37.0 | 37.2 |
|
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 | 2.85 | 3.44 | 4.02 | 4.53 |
Scalability - Gap | 1.00 | 1.04 | 1.13 | 1.29 | 1.63 | 2.30 | 2.97 | 3.66 | 4.36 | 5.06 |
No Scalar Integer | Potential Speedup | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.05 | 1.04 |
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 | 2.45 | 2.46 | 2.45 | 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-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-soa– | |
▼main_soa.cpp– | |
○ | -funroll-loops is missing. |
Source Object | Issue |
▼kmeans-gcc-O3-vectorize-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-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 | K-Means scalability gcc-O3-vectorize-soa 100000000 |
Application | ./kmeans/kmeans-gcc-O3-vectorize-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 11:24:57 | 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-vectorize-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 -ftree-vectorize | 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 |