<div dir="ltr"><div dir="ltr">On Wed, Feb 17, 2021 at 8:23 PM Park, Heeho via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>> wrote:<br></div><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">
<div lang="EN-US" style="overflow-wrap: break-word;">
<div class="gmail-m_-7753417831457732327WordSection1">
<p class="MsoNormal"><span style="font-size:11pt">Hi PETSc developers,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Have you seen this error message?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"> forrtl: severe (41): insufficient virtual memory</span></p></div></div></blockquote><div><br></div><div>I believe this is an OS setting, independent of the code itself, which explains the difference you see between</div><div>machines. This also suggests asking the local sysadmin for your cluster.</div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</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"><div lang="EN-US" style="overflow-wrap: break-word;"><div class="gmail-m_-7753417831457732327WordSection1"><p class="MsoNormal"><span style="font-size:11pt"> </span></p>
<p class="MsoNormal"><span style="font-size:11pt">We are running about 36 million degrees of freedom ( ~ 2.56 GB) and it is failing with the error message on our HPC systems.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Ironically, it runs on our laptop (super slow.)<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"> type: seqbaij<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"> rows=46251272, cols=46251272<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"> total: nonzeros=323046210, allocated nonzeros=323046210<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"> total number of mallocs used during MatSetValues calls=0<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"> block size is 1<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Does anyone have experience encountering this problem?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;color:black">Heeho Daniel Park<br>
<br>
! ------------------------------------ !<br>
Sandia National Laboratories<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;color:black">Org: 08844, R&D<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;color:black">Work: 505-844-1319<br>
! ------------------------------------ !<u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
</div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>