There should be a flag for replacing our home-grown
matmul and dot_product with calls to BLAS. If the user has
installed an optimized BLAS version, this could be a huge win.
There was some discussion of this on the mailing list, but no PR
that I could find.
Something like -fblas-intrinsics (and -fblas-f2c, for complex)
would be good.
--
Summary: Optionally use BLAS for matmul
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: enhancement
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tkoenig at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26025
