Dear Mr. Bane,<br><br> I will try it according to your advice. Thank you very much.<br><br><div class="gmail_quote">On Tue, Sep 21, 2010 at 4:37 PM, michael bane <span dir="ltr"><<a href="mailto:michael.bane@manchester.ac.uk">michael.bane@manchester.ac.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div></div><div class="h5">On Tue, 2010-09-21 at 16:07 -0600, sc Deng wrote:<br>
> Dear all,<br>
><br>
> I meet a question in using MPICH2, the error is as follows,<br>
><br>
><br>
> TimeStep = 3500 Time = 0.1050E+04<br>
> Total E = 85.3849 Pot E = 81.9326 Kin E = 3.45222<br>
> Temp = 0.702334E-04 Pressure =-0.789195E-04 Volume = 191110.<br>
> Box = 57.7138 57.4711 57.6176<br>
> forrtl: severe (174): SIGSEGV, segmentation fault occurred<br>
> Image PC Routine Line<br>
> Source<br>
> DEM_Linux.out 000000000046FAE6 Unknown Unknown<br>
> Unknown<br>
><br>
> Stack trace terminated abnormally.<br>
> rank 1 in job 5 fn-148-148_54121 caused collective abort of all<br>
> ranks<br>
> exit status of rank 1: killed by signal 9<br>
><br>
><br>
> It is a 3D Distinct element code, the error appears after computing<br>
> 3500 time steps, but it is OK for 2D simulation or just 1 processor<br>
> for 3D. Please let me know if anyone has the corresponding experience.<br>
> Thank you very much.<br>
<br>
</div></div>compile with -g (and -traceback if ifort, else similar) then run again<br>
within a debugger... you'll find it's something like out-of-bounds array<br>
accessing<br>
<br>
it's not an mpich2 bug<br>
<br>
M<br>
<font color="#888888">--<br>
Dr. Michael K. Bane<br>
Snr Research Apps & Collabs Consultant<br>
RESEARCH COMPUTING SERVICES, ITS<br>
Univ. of Manchester M13 9PL<br>
<br>
<a href="http://www.rcs.manchester.ac.uk" target="_blank">http://www.rcs.manchester.ac.uk</a><br>
<a href="http://www.twitter.com/mkbane_mcr" target="_blank">http://www.twitter.com/mkbane_mcr</a><br>
</font><div><div></div><div class="h5"><br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Your sincerely,<br>Shouchun Deng<br><br>