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| Metric | r0 | r1 |
|---|
| Total Time (s) | 81.51 | 84.26 |
| Max (Thread Active Time) (s) | 18.41 | 20.28 |
| Average Active Time (s) | 17.30 | 19.89 |
| Activity Ratio (%) | 66.0 | 69.1 |
| Average number of active threads | 13.586 | 15.110 |
| Affinity Stability (%) | 96.0 | 96.4 |
| GFLOPS | 4.205 | 3.735 |
| Time in analyzed loops (%) | 79.5 | 78.7 |
| Time in analyzed innermost loops (%) | 78.7 | 77.1 |
| Time in user code (%) | 79.5 | 78.7 |
| Compilation Options Score (%) | 100 | 100 |
| Array Access Efficiency (%) | 40.0 | 72.3 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 1.00 | 1.00 |
| Perfect OpenMP/MPI/Pthread/TBB | 1.07 | 1.13 |
| Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.34 | 1.30 |
| No Scalar Integer | Potential Speedup | 2.68 | 1.03 |
| Nb Loops to get 80% | 1 | 2 |
| FP Vectorised | Potential Speedup | 1.23 | 1.37 |
| Nb Loops to get 80% | 1 | 1 |
| Fully Vectorised | Potential Speedup | 2.60 | 2.66 |
| Nb Loops to get 80% | 2 | 2 |
| Only FP Arithmetic | Potential Speedup | 1.37 | 1.06 |
| Nb Loops to get 80% | 2 | 2 |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 |
|---|
| Experiment Name | K-Means single with 250 iterations on config acfl-Ofast (Manual unroll ONLY - no assignment hoist) and size 100000000 | K-Means single with 250 iterations on config acfl-Ofast (Assignment Hoist ONLY - no manual unroll) and size 100000000 |
|---|
| Application | ./kmeans/kmeans-acfl-Ofast | same as r0 |
|---|
| Timestamp | 2025-09-30 09:52:58 | 2025-09-30 09:57:51 |
|---|
| Experiment Type | OpenMP; | same as r0 |
|---|
| Machine | ip-172-31-18-66 | same as r0 |
|---|
| Architecture | aarch64 | same as r0 |
|---|
| Micro Architecture | ARM_NEOVERSE_V1 | same as r0 |
|---|
| Model Name | | |
|---|
| Cache Size | | |
|---|
| Number of Cores | | |
|---|
| Maximal Frequency | 0 GHz | same as r0 |
|---|
| OS Version | Linux 6.14.0-1012-aws #12~24.04.1-Ubuntu SMP Fri Aug 15 00:07:14 UTC 2025 | same as r0 |
|---|
| Architecture used during static analysis | aarch64 | same as r0 |
|---|
| Micro Architecture used during static analysis | ARM_NEOVERSE_V1 | same as r0 |
|---|
| Compilation Options |
kmeans-acfl-Ofast: 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 -Wall -std=c++14 -g -fno-omit-frame-pointer -fopenmp -Ofast -grecord-command-line -march=native -mcpu=native -c -o main.o main.cpp | same as r0 |
|---|
| Number of processes observed | 1 | same as r0 |
|---|
| Number of threads observed | 64 | 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 | 64 | same as r0 |
|---|
| MAQAO version | 2025.1.2 | same as r0 |
|---|
| MAQAO build | ee78608affc6d6d67ff71a0d376ae286b36f9862::20250929-173943 | same as r0 |
|---|
| Comments | K-MEANS AWS Graviton 3 (Neoverse V1) CPU, 64 threads run, 250 iterations | same as r0 |
|---|
