[petsc-users] Small vectors and matrices

Jed Brown jedbrown at mcs.anl.gov
Fri Nov 11 08:05:27 CST 2011

On Fri, Nov 11, 2011 at 03:35, markus.sons at gmail.com
<markus.sons at gmail.com>wrote:

> So, what do you recommend? Using PETSc for the large-scale computations
> and some simple Vec and Mat class for small, local stuff?

Don't use PETSc Mat/Vec for very small local problems like the 3x3 or 4x4
matrices. If you are already addicted to templates and overloading, you
might check out a library like Eigen which is competitive with BLAS/Lapack
for some problems on some architectures.
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