<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Feb 24, 2016 at 1:54 AM, TAY wee-beng <span dir="ltr"><<a href="mailto:zonexo@gmail.com" target="_blank">zonexo@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>On 24/2/2016 10:28 AM, Matthew Knepley
wrote:<br>
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<div class="gmail_quote">On Tue, Feb 23, 2016 at 7:50 PM, TAY
wee-beng <span dir="ltr"><<a href="mailto:zonexo@gmail.com" target="_blank">zonexo@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I got this error (also attached, full) when running my
code. It happens after a few thousand time steps.<br>
<br>
The strange thing is that for 2 different clusters, it
stops at 2 different time steps.<br>
<br>
I wonder if it's related to DM since this happens after I
added DM into my code.<br>
<br>
In this case, how can I find out the error? I'm thinking
valgrind may take very long and gives too many false
errors.</blockquote>
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<div>It is very easy to find leaks. You just run a few steps
with -malloc_dump and see what is left over.</div>
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<div> Matt</div>
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Hi Matt, <br>
<br>
Do you mean running my a.out with the -malloc_dump and stop after a
few time steps?<br>
<br>
What and how should I "see" then?</div></blockquote><div><br></div><div>-malloc_dump outputs all unfreed memory to the screen after PetscFinalize(), so you should see the leak.</div><div>I guess it might be possible to keep creating things that you freed all at once at the end, but that is less likely.</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000"> <blockquote type="cite"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><font color="#888888"><br><span class="HOEnZb"><font color="#888888">
-- <br>
Thank you<br>
<br>
Yours sincerely,<br>
<br>
TAY wee-beng<br>
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-- <br>
<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>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">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>
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