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multithreading_assembly_perf_test - 2025-05-19 15:45:40 - MAQAO 2.21.2

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Global Metrics

Total Time (s)79.39
Max (Thread Active Time) (s)64.99
Average Active Time (s)10.94
Activity Ratio (%)23.2
Average number of active threads17.637
Affinity Stability (%)88.4
Time in analyzed loops (%)0.35
Time in analyzed innermost loops (%)0.14
Time in user code (%)0.57
Compilation Options Score (%)75.0
Array Access Efficiency (%)96.4
Potential Speedups
Perfect Flow Complexity1.00
Perfect OpenMP + MPI + Pthread1.00
Perfect OpenMP + MPI + Pthread + Perfect Load Distribution5.98
No Scalar IntegerPotential Speedup1.00
Nb Loops to get 80%1
FP VectorisedPotential Speedup1.00
Nb Loops to get 80%1
Fully VectorisedPotential Speedup1.00
Nb Loops to get 80%1
FP Arithmetic OnlyPotential Speedup1.00
Nb Loops to get 80%1

CQA Potential Speedups Summary

Average Active Threads Count

Loop Based Profile

Innermost Loop Based Profile

Application Categorization

Compilation Options

Source ObjectIssue
multithreading_assembly_perf_test
sparse_matrix_utilities.hpp-funroll-loops is missing.
finite_elements.hpp-funroll-loops is missing.
sparse_matrix.hpp-funroll-loops is missing.
shared_ptr_base.h-funroll-loops is missing.
graph_tools.hpp-funroll-loops is missing.

Loop Path Count Profile

Cumulated Speedup If No Scalar Integer

Cumulated Speedup If FP Vectorized

Cumulated Speedup If Fully Vectorized

Cumulated Speedup If FP Arithmetic Only

Experiment Summary

Application./multithreading_assembly_perf_test
Timestamp2025-05-19 15:45:40 Universal Timestamp1747662340
Number of processes observed1 Number of threads observed128
Experiment TypeOpenMP;
Machinebe-par057
Model NameAMD EPYC 9534 64-Core Processor
Architecturex86_64 Micro ArchitectureZEN_V4
Cache Size1024 KB Number of Cores64
OS VersionLinux 4.18.0-477.10.1.el8_8.x86_64 #1 SMP Wed Apr 5 13:35:01 EDT 2023
Architecture used during static analysisx86_64 Micro Architecture used during static analysisZEN_V4
Frequency Driveracpi-cpufreq Frequency Governorperformance
Huge Pagesalways Hyperthreadingoff
Number of sockets2 Number of cores per socket64
Compilation Optionsmultithreading_assembly_perf_test: GNU C++20 13.2.0 -march=znver4 -g3 -O3 -std=c++20 -fno-omit-frame-pointer -fopenmp

Configuration Summary

Dataset
Run Command<executable> --max_threads 128 --ncut 200
Number Processes1
Number Nodes1
FilterNot Used
Profile StartNot Used
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