<div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br>
This works perfectly as long as I use PC_ASM_BASIC for the PCASMType. If I<br>
switch to PC_ASM_RESTRICT, my GMRES algorithm, does not converge anymore.<br>
Why is this?<br></blockquote><div><br></div><div>PC_ASM_RESTRICT specifies the use of a different algorithm. It is a cheaper algorithm in terms of work (communication) but is weaker mathematically, in parallel.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Am I misunderstanding the ASM interface? (i.e. is the way I define the overlap<br>
wrong?)<br>
Do I have to somehow permute the right-hand side of system of equations?<br>
<br>
It’s probably important to know, that PCSide is set to PC_RIGHT.<br>
<br>
Thank you for your help!<br>
With best regards,<br>
Nils<br>
<br>
P.S.: I very much hope, that my small picture is not destroyed by our email clients.<br>
<br>
<br>
--<br>
M.Sc. Nils Schween<br>
Research Associate<br>
<br>
Phone: +49 6221 54 14512<br>
Mail: <a href="mailto:nils.schween@uni-heidelberg.de" target="_blank">nils.schween@uni-heidelberg.de</a><br>
<br>
Heidelberg University<br>
Engineering Mathematics and Computing Lab (EMCL)<br>
Interdisciplinary Center for Scientific Computing (IWR)<br>
Im Neuenheimer Feld 205, D-69120 Heidelberg<br>
<a href="http://emcl.iwr.uni-heidelberg.de" rel="noreferrer" target="_blank">http://emcl.iwr.uni-heidelberg.de</a><br>
</blockquote></div></div>