<div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><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>
Increasing the threshold results in slower coarsening.<br></blockquote><div><br></div><div>Hmm, I think we have to change the webpage then:</div><div><br></div><div>  <a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCGAMGSetThreshold.html" target="_blank">http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCGAMGSetThreshold.html</a></div><div><br></div><div>I read it the opposite way.</div><div></div></div></div></blockquote><div><br></div><div>I will make this clear. The doc just says what it does algorithmically and does not mention the effect. I will add that.</div></div></div>