[petsc-users] PETSc publications

[Matthew Knepley]

On Thu, Feb 19, 2015 at 1:29 PM, Ronal Celaya <ronalcelayavzla at gmail.com>
wrote:

> Are there publications and/or documentation that could help me gain an
> understanding of the algorithms and architecture of:
>
> 1. PETSc's sparse matrix-vector multiplication
>

There is nice stuff in:
http://www.mcs.anl.gov/~kaushik/Papers/pcfd99_gkks.pdf
and several discussions in the slides on the Tutorials page.


> 2. PETSc's CG algorithm
>
> I need to gain a deep and thorough understanding of these, but would
> prefer not to start with studying the code first. Any recommendations as to
> how to best approach my study I'd appreciate. I know how to use PETSc, and
> have a working knowledge of numerical linear algebra parallel algorithms.
>

There is nothing special about -pc_type cg. It follows Saad's book (
http://www-users.cs.umn.edu/~saad/IterMethBook_2ndEd.pdf) or
http://www.cs.cmu.edu/~quake-papers/painless-conjugate-gradient.pdf

  Thanks,

      Matt


> Thanks in advance!
>
> --
> Ronal Celaya
>



-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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