[petsc-dev] Goto BLAS

Dave Nystrom dnystrom1 at comcast.net
Tue Dec 27 00:21:36 CST 2011


BTW, the Intel MKL results below are for the sequential version of MKL.  I
have not yet tried the threaded version of MKL.  Not sure if threading helps
that much for blocks of that size i.e. default is 32x32.

Dave

Dave Nystrom writes:
 > 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



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