We have numerous levels of parallelism that interact: 1. The MATLAB PCT 2. `set_dynare_threads` 3. parallel MATLAB instances spawned by `meson` in the testsuite 4. BLAS-level parallelism We need to systematically investigate whether our default settings make sense and are efficient. That requires: - [ ] Creating a parallel test group in the testsuite (see https://git.dynare.org/Dynare/dynare/-/work_items/1970#note_25217 lists for included routines) - [ ] systematically benchmarking the settings on different machines