This is a compact benchmark for OpenMP.
The results for my machine are stored in AMD3700X_VC++_Win10.txt and AMD3700X_g++_WSL.txt.
The titles represent the operations.
The column len indicates the number of elements to be evaluated.
The column seq[MOPS] shows the time used for std::execution::sequential, in units of million operations per second.
The column par/seq displays the ratio of time for std::execution::parallel compared to std::execution::sequential.
The column OpenMP/seq represents the ratio of time for OpenMP in relation to std::execution::sequential.