[petsc-users] KSP: domain decomposition and distribution

[mary sweat]

My target is the following. I got a huge linear system with a sparse huge matrix, nothing to deal with PDE. How is the system splitted between processes? is there in this suggested book the answer?
Thanks again



Il Martedì 7 Gennaio 2014 17:34, Jed Brown <jedbrown at mcs.anl.gov> ha scritto:
 
mary sweat <mary.sweat78 at yahoo.it> writes:


> Hi all,  I need to know how does KSP separate and distribute domain
> between processes and the way processes share and communicate halfway
> results. Is there any good documentation about it???

The communication is in Mat and Vec functions.  You can see it
summarized in -log_summary.  For the underlying theory, see Barry's
book.

http://www.mcs.anl.gov/~bsmith/ddbook.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20140108/a2febd59/attachment.html>