[petsc-dev] Solving under determined systems

Stefano Zampini stefano.zampini at gmail.com
Wed Sep 21 15:24:46 CDT 2016


You can use KSPLSQR


Il 21 set 2016 11:21 PM, "Mark Adams" <mfadams at lbl.gov> ha scritto:

> I want to solve for w in V' w = b, where V is tall and skinny. So a short
> fat matrix "solve". This is underdetermined. I would like to minimize the
> two norm (or any norm) of w. This looks like an optimization problem, would
> TAO do this?
> Mark
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20160921/c9e224b8/attachment.html>

More information about the petsc-dev mailing list