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<br><div><div>On Jun 22, 2012, at 10:49 PM, Eric Heien wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>This means a particle fell out of the mesh and was lost - I haven't yet written code to put these particles back in the mesh. It may be indicative of something non-physical about the simulation, but since it happens based on the number of cores it is more likely a bug I need to fix. Can you send me the parameter file you're using?<br><br>If you want to ensure the run works anyway, you can try commenting out the call to check_particle_count() in tracer.cc.<br><br>-Eric<br><br>On Jun 23, 2012, at 2:53 AM, John Naliboff wrote:<br><br><blockquote type="cite">Hi all,<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I came across an error that appears to be associated with tracking of particles across multiple nodes:<br></blockquote><blockquote type="cite"><span class="Apple-tab-span" style="white-space:pre"> </span>Exception on MPI process <0> while running postprocessor <N6aspect11Postprocess11ParticleSetILi2EEE>: <br></blockquote><blockquote type="cite"><span class="Apple-tab-span" style="white-space:pre"> </span>-------------------------------------------------------- <br></blockquote><blockquote type="cite"> An error occurred in line <484> of file <source/postprocess/tracer.cc> in function <br></blockquote><blockquote type="cite"><span class="Apple-tab-span" style="white-space:pre"> </span> void aspect::Postprocess::ParticleSet<dim>::check_particle_count() [with int dim = 2] <br></blockquote><blockquote type="cite"> The violated condition was: <br></blockquote><blockquote type="cite"><span class="Apple-tab-span" style="white-space:pre"> </span> global_particles==global_sum_particles <br></blockquote><blockquote type="cite"> The name and call sequence of the exception was: <br></blockquote><blockquote type="cite"> ExcMessage ("Particle count changed.") Additional Information: Particle count changed. <br></blockquote><blockquote type="cite"> -------------------------------------------------------- <br></blockquote><blockquote type="cite"> Aborting!<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I received this error when I tried to run a model on 32 threads across 2 nodes. I am currently running the same model successfully on 16 threads across 1 node. The attached file (bkb1Ra1e8.o6876) contains the full error output. The error also generated a number of "core" files in the model directory. I last updated aspect through svn update two weeks ago, but this is perhaps an issue specific to deal.ii?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Cheers,<br></blockquote><blockquote type="cite">John<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><bkb1Ra1e8.o6876><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">Aspect-devel mailing list<br></blockquote><blockquote type="cite"><a href="mailto:Aspect-devel@geodynamics.org">Aspect-devel@geodynamics.org</a><br></blockquote><blockquote type="cite"><a href="http://geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel">http://geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel</a><br></blockquote><br>_______________________________________________<br>Aspect-devel mailing list<br><a href="mailto:Aspect-devel@geodynamics.org">Aspect-devel@geodynamics.org</a><br>http://geodynamics.org/cgi-bin/mailman/listinfo/aspect-devel<br></div></blockquote></div><br></body></html>