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Global Metrics

Metricr0r1r2r3r4
Total Time (s)332.14218.67158.40128.08122.09
Max (Thread Active Time) (s)330.57217.85157.90127.72121.76
Average Active Time (s)330.57217.81157.86127.70121.70
Activity Ratio (%)99.599.699.799.799.7
Average number of active threads0.9951.9923.9867.9779.968
Affinity Stability (%)73.458.242.829.225.7
GFLOPS2.6215.14510.09519.93224.664
Time in analyzed loops (%)100.098.196.294.993.9
Time in analyzed innermost loops (%)98.997.095.093.892.9
Time in user code (%)10098.196.294.993.9
Compilation Options Score (%)62.562.562.562.562.5
Array Access Efficiency (%)100100100100100
Potential Speedups
Perfect Flow Complexity1.001.001.001.001.00
Perfect OpenMP/MPI/Pthread/TBB1.001.001.001.001.01
Perfect OpenMP/MPI/Pthread/TBB + Perfect Load Distribution1.001.021.041.051.07
Scalability - Gap1.001.321.913.083.68
No Scalar IntegerPotential Speedup1.051.051.051.051.05
Nb Loops to get 80%11111
FP VectorisedPotential Speedup2.582.502.432.382.35
Nb Loops to get 80%11111
Fully VectorisedPotential Speedup8.437.386.566.125.81
Nb Loops to get 80%11111
Only FP ArithmeticPotential Speedup1.321.311.301.301.29
Nb Loops to get 80%11111

Scalability Speedup

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-O2–
▼main.cpp–
○-O3 or -Ofast is missing.
○-funroll-loops is missing.

Path Count Profiles

Coverage

Count

Low Iteration Count Profiles

Coverage

Count

Average Number of Active Threads

Run 1 - run_1_thread

Run 2 - run_2_threads

Run 3 - run_4_threads

Run 4 - run_8_threads

Run 5 - run_10_threads

Experiment Summaries

r0r1r2r3r4
Experiment NameK-Means scalability gcc-O2 100000000K-Means scalability gcc-O2 100000000K-Means scalability gcc-O2 100000000K-Means scalability gcc-O2 100000000K-Means scalability gcc-O2 100000000
Application./kmeans/kmeans-gcc-O2same as r0same as r0same as r0same as r0
Timestamp2025-08-12 12:15:12same as r0same as r0same as r0same as r0
Experiment TypeSequentialOpenMP; same as r1same as r1same as r1
Machineotterfallsame as r0same as r0same as r0same as r0
Architecturex86_64same as r0same as r0same as r0same as r0
Micro ArchitectureSKYLAKEsame as r0same as r0same as r0same as r0
Model NameIntel(R) Xeon(R) Silver 4210R CPU @ 2.40GHzsame as r0same as r0same as r0same as r0
Cache Size14080 KBsame as r0same as r0same as r0same as r0
Number of Cores10same as r0same as r0same as r0same as r0
Maximal Frequency2.4 GHzsame as r0same as r0same as r0same as r0
OS VersionLinux 6.15.3-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 19 Jun 2025 14:41:19 +0000same as r0same as r0same as r0same as r0
Architecture used during static analysisx86_64same as r0same as r0same as r0same as r0
Micro Architecture used during static analysisSKYLAKEsame as r0same as r0same as r0same as r0
Compilation Options kmeans-gcc-O2: GNU C++14 13.3.1 20241125 -march=cascadelake -mtune=cascadelake -g -O2 -std=c++14 -fno-omit-frame-pointer -fopenmp same as r0same as r0same as r0same as r0
Number of processes observed1same as r0same as r0same as r0same as r0
Number of threads observed124810
Frequency Driverintel_pstatesame as r0same as r0same as r0same as r0
Frequency Governorpowersavesame as r0same as r0same as r0same as r0
Huge Pagesalwayssame as r0same as r0same as r0same as r0
Hyperthreadingoffsame as r0same as r0same as r0same as r0
Number of sockets1same as r0same as r0same as r0same as r0
Number of cores per socket10same as r0same as r0same as r0same as r0
MAQAO version2025.1.2same as r0same as r0same as r0same as r0
MAQAO build7076967d3502a2d74409cf402702d5c5c2847726::20250729-175200same as r0same as r0same as r0same as r0
CommentsIntel Xeon 4210R (Cascade Lake CPU), 1-10 threads runssame as r0same as r0same as r0same as r0
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