Re: [Gretl-users] set blas_mnk_min + mp_mnk_min

On Thu, 22 Feb 2018, Artur Tarassow wrote: > I would like to play around a bit with the options for "set > blas_mnk_min" and "set mp_mnk_min". Unfortunately, both of these > set-options are not documented (at least I couldn't find anything) in > the manual/help. I've found only two relatively old gretl-documents on > this but I am not sure the statements made there are still valid. > > To be more concrete, I've got the following two questions: > 1) What are the respective default values for a linux (ubuntu) machine? blas_mnk_min = 90000, omp_mnk_min 80000. BTW you can find the current value of a "set" variable by invoking the "set" command without giving a value for the variable: ? set blas_mnk_min blas_mnk_min: positive integer, currently 90000

> 2) Would it be possible to link against Intel's MKL library? If so, > has anyone ran some benchmarks against this library before?

Yes, I've built gretl linked against Intel MKL when testing on HPC systems. Generally I've found that openblas is as fast, but you need to link to MKL (at present) if you want optimization for Xeon Phi.