[petsc-dev] Goto BLAS

[Dave Nystrom]

Thanks.  I appreciate the info.  I saw that Goto was working for Microsoft
and did wonder about the future of the library.

Jack Poulson writes:
 > Dave,
 > 
 > GotoBLAS is roughly the same speed as MKL for level 3 BLAS (faster in some
 > cases, slower in others). With that said, Goto now works for Microsoft and
 > is no longer maintaining the library. It remains to be seen whether or not
 > anyone will be filling his shoes for new architectures. If MKL is
 > available, I would go ahead and use it.
 > 
 > Jack
 > 
 > On Mon, Dec 26, 2011 at 11:10 PM, Dave Nystrom <dnystrom1 at comcast.net>wrote:
 > 
 > > I was wondering if anyone has experimented with using Goto BLAS with Petsc
 > > for algorithms that make heavy use of blas and if there is any idea how it
 > > compares to Intel MKL.
 > >
 > > I'm finding that using Intel MKL with umfpack is speeding up my sparse
 > > direct
 > > solves by about 2x.  I'm just using default parameters with umfpack and
 > > have
 > > not yet tried to tune any of the various configurable parameters.
 > >
 > > Thanks,
 > >
 > > Dave
 > >