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| Metric | r0 | r1 | r2 |
|---|
| Total Time (s) | 196.40 | 82.60 | 62.39 |
| Max (Thread Active Time) (s) | 104.67 | 19.39 | 12.27 |
| Average Active Time (s) | 103.88 | 18.54 | 11.66 |
| Activity Ratio (%) | 96.7 | 68.0 | 50.5 |
| Average number of active threads | 13.752 | 14.368 | 17.943 |
| Affinity Stability (%) | 96.6 | 96.2 | 98.2 |
| GFLOPS | 33.521 | 0.324 | 55.176 |
| Time in analyzed loops (%) | 81.9 | 80.2 | 51.6 |
| Time in analyzed innermost loops (%) | 81.2 | 6.36 | 47.6 |
| Time in user code (%) | 81.9 | 80.2 | 51.6 |
| Compilation Options Score (%) | 100 | 100 | 50.0 |
| Array Access Efficiency (%) | 40.0 | 40.0 | 25.0 |
|
| Potential Speedups | |
| Perfect Flow Complexity | 2.91 | 1.00 | 1.00 |
| Perfect OpenMP/MPI/Pthread/TBB | 1.01 | 1.03 | 1.70 |
| Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution | 1.23 | 1.30 | 2.04 |
| No Scalar Integer | Potential Speedup | 1.08 | 1.37 | 1.48 |
| Nb Loops to get 80% | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.73 | 1.34 | 1.22 |
| Nb Loops to get 80% | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 3.12 | 2.56 | 1.16 |
| Nb Loops to get 80% | 1 | 1 | 3 |
| Only FP Arithmetic | Potential Speedup | 1.33 | 1.40 | 1.39 |
| Nb Loops to get 80% | 1 | 1 | 1 |
| Source Object | Issue |
|---|
| ▼kmeans-icpx-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-acfl-Ofast– | |
| ▼main.cpp– | |
| ○ | |
| Source Object | Issue |
|---|
| ▼kmeans-gcc-O3– | |
| ▼main.cpp– | |
| ○ | -mcpu=native is missing. |
| ○ | -funroll-loops is missing. |
| r0 | r1 | r2 |
|---|
| Experiment Name | K-Means scalability icpx-Ofast 100000000 | K-Means scalability acfl-Ofast 100000000 | K-Means scalability gcc-O3 100000000 |
|---|
| Application | ./kmeans/kmeans-icpx-Ofast | ./kmeans/kmeans-acfl-Ofast | ./kmeans/kmeans-gcc-O3 |
|---|
| Timestamp | 2025-08-18 14:03:39 | 2025-08-18 12:01:49 | 2025-09-04 13:11:17 |
|---|
| Experiment Type | OpenMP; | same as r0 | same as r0 |
|---|
| Machine | skylake | ip-172-31-18-66 | ip-172-31-47-249.ec2.internal |
|---|
| Architecture | x86_64 | aarch64 | same as r1 |
|---|
| Micro Architecture | SKYLAKE | ARM_NEOVERSE_V1 | ARM_NEOVERSE_V2 |
|---|
| 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 | same as r1 |
|---|
| 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 | Linux 6.1.109-118.189.amzn2023.aarch64 #1 SMP Tue Sep 10 08:58:40 UTC 2024 |
|---|
| Architecture used during static analysis | x86_64 | aarch64 | same as r1 |
|---|
| Micro Architecture used during static analysis | SKYLAKE | ARM_NEOVERSE_V1 | ARM_NEOVERSE_V2 |
|---|
| 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 -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 | kmeans-gcc-O3: GNU C++14 14.2.0 -mlittle-endian -mabi=lp64 -g -O3 -std=c++14 -fno-omit-frame-pointer -fopenmp |
|---|
| Number of processes observed | 1 | same as r0 | same as r0 |
|---|
| Number of threads observed | 26 | 64 | 96 |
|---|
| Frequency Driver | intel_cpufreq | NA | same as r1 |
|---|
| Frequency Governor | schedutil | NA | same as r1 |
|---|
| Huge Pages | always | madvise | same as r1 |
|---|
| Hyperthreading | off | same as r0 | same as r0 |
|---|
| Number of sockets | 2 | 1 | same as r1 |
|---|
| Number of cores per socket | 26 | 64 | 96 |
|---|
| MAQAO version | 2025.1.2 | same as r0 | same as r0 |
|---|
| MAQAO build | 3c12046452d68b38e394be5cd9e057265a89bbcf::20250812-175904 | same as r0 | 318b0d90fe5654671df7f82670f45ecac5401a28::20250903-182309 |
|---|
| Comments | Intel Xeon Platinum 8170 (Skylake CPU), 26 threads run, 250 iterations | K-MEANS SOA AWS Graviton 3 (Neoverse V1) CPU, 64 threads run, 250 iterations | K-MEANS Base AWS Graviton 4 (Neoverse V2) CPU, 96 threads run, 250 iterations |
|---|
