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| Metric | r0 | r1 |
|---|
| Total Time (s) | 72.66 | 60.73 |
| Max (Thread Active Time) (s) | 22.80 | 10.33 |
| Average Active Time (s) | 21.53 | 9.76 |
| Activity Ratio (%) | 64.6 | 45.4 |
| Average number of active threads | 28.451 | 15.425 |
| Affinity Stability (%) | 98.4 | 98.0 |
| GFLOPS | 59.915 | 57.412 |
| Time in analyzed loops (%) | 59.6 | 55.1 |
| Time in analyzed innermost loops (%) | 59.2 | 51.9 |
| Time in user code (%) | 59.5 | 55.1 |
| Compilation Options Score (%) | 50.0 | 100 |
| Array Access Efficiency (%) | 98.4 | 94.7 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 1.00 | 1.00 |
| Perfect OpenMP/MPI/Pthread/TBB | 1.28 | 1.84 |
| Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.78 | 1.92 |
| No Scalar Integer | Potential Speedup | 1.69 | 1.04 |
| Nb Loops to get 80% | 1 | 2 |
| FP Vectorised | Potential Speedup | 1.05 | 1.00 |
| Nb Loops to get 80% | 1 | 1 |
| Fully Vectorised | Potential Speedup | 1.35 | 1.17 |
| Nb Loops to get 80% | 1 | 2 |
| Only FP Arithmetic | Potential Speedup | 1.30 | 1.05 |
| Nb Loops to get 80% | 1 | 2 |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3– | |
| ▼main.cpp– | |
| ○ | -mcpu=native is missing. |
| ○ | -funroll-loops is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 |
|---|
| Experiment Name | K-Means scalability gcc-O3 100000000 | K-Means scalability acfl-Ofast 100000000 |
|---|
| Application | ./kmeans/kmeans-gcc-O3 | ./kmeans/kmeans-acfl-Ofast |
|---|
| Timestamp | 2025-09-04 14:31:24 | 2025-09-04 14:33:55 |
|---|
| Experiment Type | OpenMP; | 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 -g -O3 -std=c++14 -fno-omit-frame-pointer -fopenmp | 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_AmazonLinux-2023/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 |
|---|
| Number of processes observed | 1 | same as r0 |
|---|
| Number of threads observed | 96 | 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 | 2025.1.2 | same as r0 |
|---|
| MAQAO build | 318b0d90fe5654671df7f82670f45ecac5401a28::20250903-182309 | same as r0 |
|---|
| Comments | K-MEANS Manual Unrolling AWS Graviton 4 (Neoverse V2) CPU, 96 threads run, 250 iterations | same as r0 |
|---|
