[petsc-dev] MatTransposeMatMult

Jed Brown jed at jedbrown.org
Wed Sep 20 16:32:53 CDT 2017

I have a simple SeqAIJ example where MatTransposeMatMult is 30x slower
than MatTranspose followed by MatMatMult.  This is embarrassing when
people try to compare performance.  Are there any cases where these
custom implementations provide value rather than just confusing people
or turning them away from PETSc?
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 832 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20170920/af38279a/attachment.sig>

More information about the petsc-dev mailing list