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- r0: gcc/gcc-O3/points_100000000
- r1: acfl/acfl-O3/points_100000000
| Metric | r0 | r1 |
|---|
| Total Time (s) | 95.95 | 110.83 |
| Max (Thread Active Time) (s) | 95.74 | 110.64 |
| Average Active Time (s) | 95.74 | 110.64 |
| Activity Ratio (%) | 99.8 | 99.8 |
| Average number of active threads | 0.998 | 0.998 |
| Affinity Stability (%) | 100.0 | 100.0 |
| GFLOPS | 7.948 | 3.763 |
| Time in analyzed loops (%) | 100.0 | 100.0 |
| Time in analyzed innermost loops (%) | 97.3 | 98.9 |
| Time in user code (%) | 100 | 100 |
| Compilation Options Score (%) | 75.0 | 16.7 |
| Array Access Efficiency (%) | 25.0 | 95.5 |
|
| Potential Speedups |  |
| Perfect Flow Complexity | 1.00 | 1.00 |
| Perfect OpenMP + MPI + Pthread | 1.00 | 1.00 |
| Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.00 |
| No Scalar Integer | Potential Speedup | 3.09 | 1.02 |
| Nb Loops to get 80% | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.64 | 1.51 |
| Nb Loops to get 80% | 1 | 1 |
| Fully Vectorised | Potential Speedup | 1.31 | 1.49 |
| Nb Loops to get 80% | 2 | 1 |
| Only FP Arithmetic | Potential Speedup | 2.32 | 1.05 |
| Nb Loops to get 80% | 1 | 1 |
| Source Object | Issue |
| ▼kmeans-gcc-O3– | |
| ▼main.cpp– | |
| ○ | -funroll-loops is missing. |
| Source Object | Issue |
| ▼kmeans-acfl-O3– | |
| ▼main.cpp– | |
| ○ | -g is missing for some functions (possibly ones added by the compiler), but debug locations are available. Some analysis may be inaccurate. |
| ○ | -O2, -O3 or -Ofast is missing. |
| ○ | -mcpu=native is missing. |
| r0 | r1 |
| Experiment Name | K-Means scalability gcc-O3 100000000 | K-Means scalability acfl-O3 100000000 |
| Application | ./kmeans/kmeans-gcc-O3 | ./kmeans/kmeans-acfl-O3 |
| Timestamp | 2025-06-24 09:32:25 | 2025-06-24 09:55:02 |
| Experiment Type | Sequential | same as r0 |
| Machine | ip-172-31-47-249.ec2.internal | same as r0 |
| Architecture | aarch64 | same as r0 |
| Micro Architecture | ARM_NEOVERSE_V2 | same as r0 |
| Model Name | | |
| Cache Size | | |
| Number of Cores | | |
| Maximal Frequency | 0 GHz | 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 |
| Architecture used during static analysis | aarch64 | same as r0 |
| Micro Architecture used during static analysis | ARM_NEOVERSE_V2 | same as r0 |
| Compilation Options |
kmeans-gcc-O3: 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 | kmeans-acfl-O3: Arm C/C++/Fortran Compiler version 24.10.1 (build number 4) (based on LLVM 19.1.0) |
| Number of processes observed | 1 | same as r0 |
| Number of threads observed | 1 | same as r0 |
| Frequency Driver | NA | same as r0 |
| Frequency Governor | NA | same as r0 |
| Huge Pages | madvise | same as r0 |
| Hyperthreading | off | same as r0 |
| Number of sockets | 1 | same as r0 |
| Number of cores per socket | 96 | same as r0 |
| MAQAO version | 2025.1.0 | same as r0 |
| MAQAO build | 1cd8232d3b2009bc695f526f903b266bda9bb996::20250623-181852 | same as r0 |
| Comments | AWS Graviton 4 (Neoverse V2) CPU, 1-96 threads runs | same as r0 |