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| Metric | r0 | r1 |
|---|
| Total Time (s) | 121.77 | 72.85 |
| Max (Thread Active Time) (s) | 40.02 | 16.02 |
| Average Active Time (s) | 30.53 | 15.80 |
| Activity Ratio (%) | 74.9 | 66.3 |
| Average number of active threads | 2.006 | 1.735 |
| Affinity Stability (%) | 71.6 | 69.9 |
| GFLOPS | 7.390 | 75.0 E-3 |
| Time in analyzed loops (%) | 92.6 | 96.0 |
| Time in analyzed innermost loops (%) | 91.8 | 95.1 |
| Time in user code (%) | 92.6 | 96.0 |
| Compilation Options Score (%) | 100 | 66.7 |
| Array Access Efficiency (%) | Not Available | 99.7 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 4.16 | 1.00 |
| Perfect OpenMP/MPI/Pthread/TBB | 1.10 | 1.00 |
| Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.41 | 1.06 |
| No Scalar Integer | Potential Speedup | 1.09 | 1.00 |
| Nb Loops to get 80% | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.96 | 1.44 |
| Nb Loops to get 80% | 1 | 1 |
| Fully Vectorised | Potential Speedup | 4.27 | 2.97 |
| Nb Loops to get 80% | 1 | 1 |
| Only FP Arithmetic | Potential Speedup | 1.37 | 1.00 |
| Nb Loops to get 80% | 1 | 2 |
| Source Object | Issue |
|---|
| ▼kmeans-icpx-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | -mcpu=native is missing. |
| r0 | r1 |
|---|
| Experiment Name | K-Means scalability icpx-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 |
|---|
| Application | ./kmeans/kmeans-icpx-Ofast | ./kmeans/kmeans-acfl-Ofast |
|---|
| Timestamp | 2025-08-04 22:55:28 | 2025-08-07 14:06:06 |
|---|
| Experiment Type | OpenMP; | same as r0 |
|---|
| Machine | skylake | ip-172-31-18-66 |
|---|
| Architecture | x86_64 | aarch64 |
|---|
| Micro Architecture | SKYLAKE | ARM_NEOVERSE_V1 |
|---|
| Model Name | Intel(R) Xeon(R) Platinum 8170 CPU @ 2.10GHz | |
|---|
| Cache Size | 36608 KB | |
|---|
| Number of Cores | 26 | |
|---|
| Maximal Frequency | 2.1 GHz | 0 GHz |
|---|
| OS Version | Linux 6.15.5-arch1-1 #1 SMP PREEMPT_DYNAMIC Sun, 06 Jul 2025 11:14:36 +0000 | Linux 6.14.0-1010-aws #10~24.04.1-Ubuntu SMP Fri Jul 18 20:39:43 UTC 2025 |
|---|
| Architecture used during static analysis | x86_64 | aarch64 |
|---|
| Micro Architecture used during static analysis | SKYLAKE | ARM_NEOVERSE_V1 |
|---|
| Compilation Options |
kmeans-icpx-Ofast: clang based Intel(R) oneAPI DPC++/C++ Compiler 2024.2.1 (2024.2.1.20240711) --driver-mode=g++ --intel -I . -MMD -MP -Wall -std=c++14 -g -fno-omit-frame-pointer -fiopenmp -Ofast -x Host -mtune=native -c -o main.o main.cpp -fveclib=SVML -faltmathlib=SVML -fheinous-gnu-extensions | 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 |
|---|
| Number of processes observed | 1 | same as r0 |
|---|
| Number of threads observed | 8 | same as r0 |
|---|
| Frequency Driver | intel_cpufreq | NA |
|---|
| Frequency Governor | schedutil | NA |
|---|
| Huge Pages | always | madvise |
|---|
| Hyperthreading | off | same as r0 |
|---|
| Number of sockets | 2 | 1 |
|---|
| Number of cores per socket | 26 | 64 |
|---|
| MAQAO version | 2025.1.2 | same as r0 |
|---|
| MAQAO build | 7076967d3502a2d74409cf402702d5c5c2847726::20250729-175200 | same as r0 |
|---|
| Comments | Intel Xeon Platinum 8170 (Skylake CPU), 1-26 threads runs | K-MEANS SOA AWS Graviton 3 (Neoverse V1) CPU, 1-64 threads runs |
|---|
