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- r0: G++ O3 + Funroll
- r1: ACFL O3 + Funroll + Ffastmath
| Metric | r0 | r1 |
|---|
| Total Time (s) | 8.59 | 9.06 |
| Max (Thread Active Time) (s) | 8.47 | 8.96 |
| Average Active Time (s) | 1.11 | 5.46 |
| Activity Ratio (%) | 12.9 | 60.4 |
| Average number of active threads | 12.410 | 57.855 |
| Affinity Stability (%) | 95.9 | 98.1 |
| GFLOPS | 51.190 | 83.837 |
| Time in analyzed loops (%) | 99.4 | 22.1 |
| Time in analyzed innermost loops (%) | 14.1 | 21.8 |
| Time in user code (%) | 99.5 | 22.1 |
| Compilation Options Score (%) | 100 | 100 |
| Array Access Efficiency (%) | 41.7 | 95.9 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 1.00 | 1.00 |
| Perfect OpenMP + MPI + Pthread | 1.00 | 1.01 |
| Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 7.67 | 7.44 |
| No Scalar Integer | Potential Speedup | 3.21 | 1.00 |
| Nb Loops to get 80% | 2 | 1 |
| FP Vectorised | Potential Speedup | 1.42 | 1.00 |
| Nb Loops to get 80% | 1 | 1 |
| Fully Vectorised | Potential Speedup | 1.43 | 1.04 |
| Nb Loops to get 80% | 1 | 1 |
| Only FP Arithmetic | Potential Speedup | 1.55 | 1.01 |
| Nb Loops to get 80% | 2 | 1 |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3-funroll– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-O3-all– | |
| ▼main.cpp– | |
| ○ | |
| r0 | r1 |
|---|
| Experiment Name | K-Means scalability gcc-O3-funroll 100000000 | K-Means scalability acfl-O3-all 100000000 |
|---|
| Application | ./kmeans/kmeans-gcc-O3-funroll | ./kmeans/kmeans-acfl-O3-all |
|---|
| Timestamp | 2025-06-24 09:38:07 | 2025-07-07 09:31:01 |
|---|
| 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-funroll: 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 -funroll-loops | kmeans-acfl-O3-all: 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 -march=native -std=c++14 -g -fno-omit-frame-pointer -fopenmp -O3 -funroll-loops -ffast-math -grecord-command-line -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 | 2025.1.0 | 2025.1.1 |
|---|
| MAQAO build | 1cd8232d3b2009bc695f526f903b266bda9bb996::20250623-181852 | f3e40b5f1dbd62488bc0cc5f885d40677c87bfe8::20250630-094248 |
|---|
| Comments | AWS Graviton 4 (Neoverse V2) CPU, 1-96 threads runs | same as r0 |
|---|
