<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi all,<div><br></div><div>I came across an error that appears to be associated with tracking of particles across multiple nodes:</div><div><font class="Apple-style-span" size="2" color="#ff2016"><span class="Apple-tab-span" style="white-space:pre"> </span>Exception on MPI process <0> while running postprocessor <N6aspect11Postprocess11ParticleSetILi2EEE>:
</font></div><div><font class="Apple-style-span" size="2" color="#ff2016"><span class="Apple-tab-span" style="white-space:pre"> </span>-------------------------------------------------------- </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"> An error occurred in line <484> of file <source/postprocess/tracer.cc> in function </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"><span class="Apple-tab-span" style="white-space:pre"> </span> void aspect::Postprocess::ParticleSet<dim>::check_particle_count() [with int dim = 2] </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"> The violated condition was: </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"><span class="Apple-tab-span" style="white-space:pre"> </span> global_particles==global_sum_particles </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"> The name and call sequence of the exception was: </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"> ExcMessage ("Particle count changed.")
Additional Information:
Particle count changed. </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"> -------------------------------------------------------- </font></div><div><font class="Apple-style-span" size="2" color="#ff2016"> Aborting!</font></div><div><br></div><div>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?</div><div><br></div><div><div>
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div>Cheers,</div><div>John</div><div><br></div><div></div></span></span></div></div></div></body></html>