<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">+1 to this fix, I had similar issues a while back except I was getting the following error during make check (or running any mpi code for that matter) after petsc was built:<div class=""><br class=""></div><div class=""><div class="">Fatal error in PMPI_Init_thread: Other MPI error, error stack:</div><div class="">MPIR_Init_thread(467)..............: </div><div class="">MPID_Init(177).....................: channel initialization failed</div><div class="">MPIDI_CH3_Init(70).................: </div><div class="">MPID_nem_init(319).................: </div><div class="">MPID_nem_tcp_init(171).............: </div><div class="">MPID_nem_tcp_get_business_card(418): </div><div class="">MPID_nem_tcp_init(377).............: gethostbyname failed, localhost (errno 3)</div><div class=""><br class=""><div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div>Best regards,<br class=""><br class="">Jacob Faibussowitsch<br class="">(Jacob Fai - booss - oh - vitch)<br class="">Cell: (312) 694-3391</div></div>
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<div><br class=""><blockquote type="cite" class=""><div class="">On Sep 17, 2020, at 17:59, Satish Balay via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov" class="">petsc-users@mcs.anl.gov</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Here is a fix:<br class=""><br class="">echo 127.0.0.1 `hostname` | sudo tee -a /etc/hosts<br class=""><br class="">Satish<br class=""><br class="">On Thu, 17 Sep 2020, Matthew Knepley wrote:<br class=""><br class=""><blockquote type="cite" class="">We should have an option to disable the test.<br class=""><br class=""> Matt<br class=""><br class="">On Thu, Sep 17, 2020 at 5:31 PM Satish Balay via petsc-users <<br class=""><a href="mailto:petsc-users@mcs.anl.gov" class="">petsc-users@mcs.anl.gov</a>> wrote:<br class=""><br class=""><blockquote type="cite" class="">On Thu, 17 Sep 2020, Mark Adams wrote:<br class=""><br class=""><blockquote type="cite" class="">I rebased over master and started getting this error.<br class="">I did reinstall MPICH (brew) recently.<br class="">Any ideas?<br class="">Thanks,<br class="">Mark<br class=""></blockquote><br class=""><br class="">-------------------------------------------------------------------------------<br class="">Exception: Your hostname will not work with MPI, perhaps you have VPN<br class="">running whose network settings may not play well with MPI or your network<br class="">is misconfigured<br class=""><br class="">*******************************************************************************<br class=""><br class=""><br class="">Ok - this is a new test that got added to check for broken network that<br class="">breaks MPI.<br class=""><br class="">Here is the check:<br class=""><br class="">Executing: ping -c 2 MarksMac-302.local<br class=""><br class="">The check says you have broken network settings. [as its not responding to<br class="">ping.]<br class=""><br class="">Does MPI work fine on this box? You can try disabling this check<br class="">(manually) - and do the build, and run<br class=""><br class="">Does MPI run fine?<br class=""><br class="">Satish<br class=""><br class=""><br class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><br class=""></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote></blockquote><br class="">diff --git a/config/BuildSystem/config/packages/MPI.py<br class="">b/config/BuildSystem/config/packages/MPI.py<br class="">index 2e130fdcfe..8464de6773 100644<br class="">--- a/config/BuildSystem/config/packages/MPI.py<br class="">+++ b/config/BuildSystem/config/packages/MPI.py<br class="">@@ -267,7 +267,7 @@ shared libraries and run with<br class="">--known-mpi-shared-libraries=1')<br class=""> if ret != 0:<br class=""> raise RuntimeError(errormessage+" Return code %s\n" % ret)<br class=""> except:<br class="">- raise RuntimeError("Exception: "+errormessage)<br class="">+ pass<br class=""> else:<br class=""> self.logPrint("Unable to get result from hostname, skipping<br class="">ping check\n")<br class=""><br class=""><br class=""></blockquote><br class=""><br class=""></blockquote><br class=""></div></div></blockquote></div><br class=""></div></div></body></html>