Re: [Gretl-devel] matrix_perf results
On Wed, 18 Jun 2014, Riccardo (Jack) Lucchetti wrote:
Sorry I'm late. A few more interesting results here: two machines
with same
operating system (64-bit debian). One is a low-end dual core, the other is a
modern machine with avx and two physical processors, each with 8
hyperthreaded cores.
The results follow [snipped here], but I believe the moral of the
story (also, having seen a the results others posted earlier) is
quite evident: the "right" software setup depends heavily on what
your hardware/software combination is.
Yes, true enough. Though I think we're on safe ground in reckoning
that on the Mac we ought to hand off dgemm to VecLib except perhaps
for very small matrices.
Can I ask -- this applies to Marcin too -- the BLAS that's
identified by gretl as "netlib": is this really netlib and not ATLAS
or OpenBLAS in disguise? Based on Artur's information I can believe
it is in fact plain Netlib BLAS with heavy optimization by the
compiler, but I'd just like to check.
Allin