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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) | 95.14 | 51.43 | 29.52 | 18.53 | 13.01 | 10.26 | 9.36 | 8.98 | 8.73 | 8.58 |
| Max (Thread Active Time) (s) | 94.93 | 51.31 | 29.43 | 18.48 | 12.97 | 10.21 | 9.31 | 8.92 | 8.64 | 8.46 |
| Average Active Time (s) | 94.93 | 47.60 | 23.89 | 11.99 | 6.01 | 3.02 | 2.02 | 1.56 | 1.29 | 1.11 |
| Activity Ratio (%) | 99.8 | 92.6 | 80.9 | 64.7 | 46.2 | 29.4 | 21.6 | 17.4 | 14.7 | 12.9 |
| Average number of active threads | 0.998 | 1.851 | 3.237 | 5.174 | 7.397 | 9.419 | 10.353 | 11.125 | 11.781 | 12.373 |
| Affinity Stability (%) | 100.0 | 99.7 | 99.1 | 98.4 | 97.6 | 96.9 | 96.5 | 96.3 | 96.1 | 95.7 |
| GFLOPS | 8.016 | 14.828 | 25.838 | 41.149 | 58.622 | 73.643 | 80.885 | 84.705 | 59.632 | 49.831 |
| Time in analyzed loops (%) | 100.0 | 100.0 | 100.0 | 100.0 | 99.9 | 99.9 | 99.7 | 99.7 | 99.6 | 99.5 |
| Time in analyzed innermost loops (%) | 93.2 | 93.5 | 93.6 | 93.5 | 93.2 | 93.7 | 93.4 | 92.8 | 93.0 | 92.6 |
| Time in user code (%) | 100 | 100 | 100.0 | 100.0 | 99.9 | 99.9 | 99.8 | 99.7 | 99.6 | 99.5 |
| Compilation Options Score (%) | 87.5 | 87.5 | 87.5 | 87.5 | 87.5 | 87.5 | 87.5 | 87.5 | 87.5 | 87.5 |
| Array Access Efficiency (%) | 41.7 | 41.7 | 41.7 | 41.7 | 41.7 | 41.7 | 41.7 | 41.7 | 41.7 | 41.7 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 1.52 | 1.52 | 1.53 | 1.52 | 1.52 | 1.53 | 1.52 | 1.52 | 1.52 | 1.52 |
| 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 | 1.08 | 1.23 | 1.54 | 2.16 | 3.39 | 4.62 | 5.74 | 6.75 | 7.69 |
| Scalability - Gap | 1.00 | 1.08 | 1.24 | 1.56 | 2.19 | 3.45 | 4.72 | 6.04 | 7.34 | 8.66 |
| No Scalar Integer | Potential Speedup | 3.32 | 3.31 | 3.31 | 3.31 | 3.31 | 3.31 | 3.30 | 3.30 | 3.30 | 3.30 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| FP Vectorised | Potential Speedup | 1.47 | 1.47 | 1.47 | 1.47 | 1.47 | 1.47 | 1.47 | 1.47 | 1.47 | 1.47 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 1.66 | 1.66 | 1.66 | 1.66 | 1.65 | 1.66 | 1.65 | 1.65 | 1.65 | 1.65 |
| Nb Loops to get 80% | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 2 | 1 | 1 |
| Only FP Arithmetic | Potential Speedup | 1.62 | 1.62 | 1.62 | 1.62 | 1.62 | 1.62 | 1.62 | 1.61 | 1.61 | 1.61 |
| Nb Loops to get 80% | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-all– | |
| ▼main.cpp– | |
| ○ | -O3 or -Ofast is missing. |
| r0 | r1 | r2 | r3 | r4 | r5 | r6 | r7 | r8 | r9 |
|---|
| Experiment Name | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 | K-Means scalability gcc-O3-all 100000000 |
|---|
| Application | ./kmeans/kmeans-gcc-O3-all | 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 | 2025-06-24 12:28:12 | 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-all: 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 -funroll-loops -ffast-math GNU C17 14.2.0 -mlittle-endian -mabi=lp64 -g -g -g -O2 -O2 -O2 -fbuilding-libgcc -fno-stack-protector -fPIC | 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 |
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| MAQAO version | 2025.1.0 | 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 |
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| MAQAO build | 1cd8232d3b2009bc695f526f903b266bda9bb996::20250623-181852 | 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 |
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