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.
Allin