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| Metric | r0 | r1 |
|---|
| Total Time (s) | 58.80 | 42.52 |
| Max (Thread Active Time) (s) | 2.10 | 2.33 |
| Average Active Time (s) | 1.77 | 2.24 |
| Activity Ratio (%) | 48.0 | 64.3 |
| Average number of active threads | 1.928 | 3.378 |
| Affinity Stability (%) | 72.1 | 79.0 |
| GFLOPS | 0.435 | 19.923 |
| Time in analyzed loops (%) | 78.7 | 83.4 |
| Time in analyzed innermost loops (%) | 78.1 | 4.92 |
| Time in user code (%) | 78.8 | 83.4 |
| Compilation Options Score (%) | 66.7 | 100 |
| Array Access Efficiency (%) | 93.8 | Not Available |
|
| Potential Speedups | |
| Perfect Flow Complexity | 1.00 | Not Available |
| Perfect OpenMP/MPI/Pthread/TBB | 1.17 | 1.01 |
| Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.51 | 1.24 |
| No Scalar Integer | Potential Speedup | 1.03 | 1.35 |
| Nb Loops to get 80% | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.30 | 1.00 |
| Nb Loops to get 80% | 1 | 1 |
| Fully Vectorised | Potential Speedup | 2.23 | 1.10 |
| Nb Loops to get 80% | 2 | 1 |
| Only FP Arithmetic | Potential Speedup | 1.05 | 1.36 |
| Nb Loops to get 80% | 1 | 1 |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | -mcpu=native is missing. |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 |
|---|
| Experiment Name | K-Means scalability acfl-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 |
|---|
| Application | ./kmeans/kmeans-acfl-Ofast | same as r0 |
|---|
| Timestamp | 2025-08-07 14:06:06 | 2025-08-07 16:34:30 |
|---|
| Experiment Type | OpenMP; | same as r0 |
|---|
| Machine | ip-172-31-18-66 | ip-172-31-47-249.ec2.internal |
|---|
| Architecture | aarch64 | same as r0 |
|---|
| Micro Architecture | ARM_NEOVERSE_V1 | ARM_NEOVERSE_V2 |
|---|
| Model Name | | |
|---|
| Cache Size | | |
|---|
| Number of Cores | | |
|---|
| Maximal Frequency | 0 GHz | same as r0 |
|---|
| OS Version | Linux 6.14.0-1010-aws #10~24.04.1-Ubuntu SMP Fri Jul 18 20:39:43 UTC 2025 | Linux 6.1.109-118.189.amzn2023.aarch64 #1 SMP Tue Sep 10 08:58:40 UTC 2024 |
|---|
| Architecture used during static analysis | aarch64 | same as r0 |
|---|
| Micro Architecture used during static analysis | ARM_NEOVERSE_V1 | ARM_NEOVERSE_V2 |
|---|
| 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 -c -o main.o main.cpp GNU C17 14.2.0 -mlittle-endian -mabi=lp64 -g -g -g -O2 -O2 -O2 -fbuilding-libgcc -fno-stack-protector -fPIC | 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 GNU C17 14.2.0 -mlittle-endian -mabi=lp64 -g -g -g -O2 -O2 -O2 -fbuilding-libgcc -fno-stack-protector -fPIC |
|---|
| 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 | 96 |
|---|
| MAQAO version | 2025.1.2 | same as r0 |
|---|
| MAQAO build | 7076967d3502a2d74409cf402702d5c5c2847726::20250729-175200 | same as r0 |
|---|
| Comments | K-MEANS SOA AWS Graviton 3 (Neoverse V1) CPU, 1-64 threads runs | AWS Graviton 4 (Neoverse V2) CPU, 1-96 threads runs |
|---|
