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Global Metrics

Metricr0r1r2r3
Total Time (s)62.3967.7472.6672.43
Max (Thread Active Time) (s)12.2714.2022.8022.48
Average Active Time (s)11.6613.4221.5321.21
Activity Ratio (%)50.548.264.664.1
Average number of active threads17.94319.01428.45128.114
Affinity Stability (%)98.298.598.498.4
GFLOPS55.17665.68359.91561.666
Time in analyzed loops (%)51.663.959.662.0
Time in analyzed innermost loops (%)47.661.859.261.6
Time in user code (%)51.663.959.562.0
Compilation Options Score (%)50.050.050.050.0
Array Access Efficiency (%)25.025.698.420.1
Potential Speedups
Perfect Flow Complexity1.001.001.001.00
Perfect OpenMP/MPI/Pthread/TBB1.701.521.281.18
Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution2.041.661.781.71
No Scalar IntegerPotential Speedup1.481.011.691.57
Nb Loops to get 80%1211
FP VectorisedPotential Speedup1.221.211.051.05
Nb Loops to get 80%1111
Fully VectorisedPotential Speedup1.161.601.351.45
Nb Loops to get 80%3111
Only FP ArithmeticPotential Speedup1.391.021.301.32
Nb Loops to get 80%1211

Cumulated Speedup If No Scalar Integer

Cumulated Speedup If FP Vectorized

Cumulated Speedup If Fully Vectorized

Cumulated Speedup If Only FP Arithmetic

Loop Based Profiles

Innermost / Single Loops

Inbetween Loops

Outermost Loops

Cumulated Coverage With All Loops

Innermost Loop Based Profiles

Coverage

Count

Application Categorization

Time

Coverage

Compilation Options

Source ObjectIssue
▼kmeans-gcc-O3–
▼main.cpp–
○-mcpu=native is missing.
○-funroll-loops is missing.

Path Count Profiles

Coverage

Count

Low Iteration Count Profiles

Coverage

Count

Average Number of Active Threads

Run 1 - Neoverse V2 GCC O3 Base (250 iterations, 96 threads)

Run 2 - Neoverse V2 GCC O3 SoA (250 iterations, 96 threads)

Run 3 - Neoverse V2 GCC O3 Manual Unroll (250 iterations, 96 threads)

Run 4 - Neoverse V2 GCC O3 Manual Unroll + SoA (250 iterations, 96 threads)

Experiment Summaries

r0r1r2r3
Experiment NameK-Means scalability gcc-O3 100000000K-Means scalability gcc-O3 100000000K-Means scalability gcc-O3 100000000K-Means scalability gcc-O3 100000000
Application./kmeans/kmeans-gcc-O3same as r0same as r0same as r0
Timestamp2025-09-04 13:11:172025-09-04 14:15:222025-09-04 14:31:242025-09-04 14:43:11
Experiment TypeOpenMP; same as r0same as r0same as r0
Machineip-172-31-47-249.ec2.internalsame as r0same as r0same as r0
Architectureaarch64same as r0same as r0same as r0
Micro ArchitectureARM_NEOVERSE_V2same as r0same as r0same as r0
Model Name
Cache Size
Number of Cores
Maximal Frequency0 GHzsame as r0same as r0same as r0
OS VersionLinux 6.1.109-118.189.amzn2023.aarch64 #1 SMP Tue Sep 10 08:58:40 UTC 2024same as r0same as r0same as r0
Architecture used during static analysisaarch64same as r0same as r0same as r0
Micro Architecture used during static analysisARM_NEOVERSE_V2same as r0same as r0same 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 same as r0same as r0same as r0
Number of processes observed1same as r0same as r0same as r0
Number of threads observed96same as r0same as r0same as r0
Frequency DriverNAsame as r0same as r0same as r0
Frequency GovernorNAsame as r0same as r0same as r0
Huge Pagesmadvisesame as r0same as r0same as r0
Hyperthreadingoffsame as r0same as r0same as r0
Number of sockets1same as r0same as r0same as r0
Number of cores per socket96same as r0same as r0same as r0
MAQAO version2025.1.2same as r0same as r0same as r0
MAQAO build318b0d90fe5654671df7f82670f45ecac5401a28::20250903-182309same as r0same as r0same as r0
CommentsK-MEANS Base AWS Graviton 4 (Neoverse V2) CPU, 96 threads run, 250 iterationsK-MEANS SOA AWS Graviton 4 (Neoverse V2) CPU, 96 threads run, 250 iterationsK-MEANS Manual Unrolling AWS Graviton 4 (Neoverse V2) CPU, 96 threads run, 250 iterationsK-MEANS Manual Unrolling + SoA AWS Graviton 4 (Neoverse V2) CPU, 96 threads run, 250 iterations
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