<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br><div><div>On Jun 5, 2012, at 10:30 AM, Jed Brown wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div class="gmail_quote">On Tue, Jun 5, 2012 at 8:59 AM, Mark F. Adams <span dir="ltr"><<a href="mailto:mark.adams@columbia.edu" target="_blank">mark.adams@columbia.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; position: static; z-index: auto; ">
I've got a consistent segv on the Cray at NERSC with 64K cores. No problems with smaller jobs.<br>
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It seems to happen in here:<br>
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/* Done after init due to a bug in MPICH-GM? */<br>
ierr = PetscErrorPrintfInitialize();CHKERRQ(ierr);<br></blockquote><div><br></div><div>Do you have any more information? How did you identify that this was the point of error?</div></div></blockquote><div><br></div><div>printf surrounded by barriers.<div><br></div><div>There are a lot of system calls in PetscErrorPrintfInitialize. I've added printfs to this and submitted the job so I should have that info tomorrow.</div></div><br><blockquote type="cite"><div class="gmail_quote"><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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I can keep diving in, but anyone have any ideas on this?<br>
<span class="HOEnZb"><font color="#888888"><br>
Mark</font></span></blockquote></div><br>
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