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<p>Hi Eddie,</p>
<p>I have tried without and without <span style="font-size:11.0pt">threadBlockList
but I have the same results as soon as I set up my case with
several tasks. If launched with only one task, I do not have
this effect but it is too slow as I can't use more than one node
on the cluster, hence why I would like to be able to set up on
several nodes.</span></p>
<p><span style="font-size:11.0pt">Best,<br>
Arthur Hirsch-Passicos<br>
</span></p>
<div class="moz-cite-prefix">On 2/7/25 14:28, Hansen, Eddie wrote:<br>
</div>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Arthur,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Some of the
threading options are not well-supported. Do you have the
same issues if you setup without threadBlockList, and
perhaps also without multi-threading in your submission
script?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">--</span><span
style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#181A1B">Eddie
Hansen</span><span
style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#181A1B">Applications
Group Leader<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Arial",sans-serif;color:#181A1B">Flash
Center for Computational Science</span><span
style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div id="mail-editor-reference-message-container">
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style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span
style="color:black">From:
</span></b><span style="color:black">flash-users
<a class="moz-txt-link-rfc2396E" href="mailto:flash-users-bounces@flash.rochester.edu"><flash-users-bounces@flash.rochester.edu></a> on
behalf of Dr. Arthur Hirsch-Passicos
<a class="moz-txt-link-rfc2396E" href="mailto:a.hirsch@hzdr.de"><a.hirsch@hzdr.de></a><br>
<b>Date: </b>Friday, February 7, 2025 at 3:35 AM<br>
<b>To: </b><a class="moz-txt-link-abbreviated" href="mailto:flash-users@flash.rochester.edu">flash-users@flash.rochester.edu</a>
<a class="moz-txt-link-rfc2396E" href="mailto:flash-users@flash.rochester.edu"><flash-users@flash.rochester.edu></a><br>
<b>Subject: </b>[FLASH-USERS] Problems with
parallelisation<o:p></o:p></span></p>
</div>
<p>Dear FLASH Users,<o:p></o:p></p>
<p>I am in the process of trying to parallelise my
simulations so they run faster but I'm facing some
issues in the calculations when I'm running the
calculations with more than one task. Indeed, I see
calculation artifacts at the junction of the tasks for
all values saved. Here is an example with my initial
electronic temperature and the same after some time step
when I use two tasks:<o:p></o:p></p>
<p><o:p> </o:p></p>
<p><img width="471" height="348"
style="width:4.9062in;height:3.625in"
id="_x0000_i1026"
src="cid:part1.qNzgTllK.E98xY8Lo@hzdr.de" class=""><img
width="475" height="351"
style="width:4.9479in;height:3.6562in"
id="_x0000_i1025"
src="cid:part2.IN5USnWl.ErrrmiP0@hzdr.de" class=""><o:p></o:p></p>
<p>Here is my setup line:<br>
<br>
./setup $currentSim -auto -2d +cartesian
-maxblocks=300000 -nxb=16 -nyb=16 +hdf5typeio
species=cham,targ +mtmmmt +uhd3t +mgd mgd_meshgroups=1
threadBlockList=True
<o:p></o:p></p>
<p><o:p> </o:p></p>
<p>My submission to the cluster, the par file for the
boundaries and the Makefile.h I'm using are joined in
the message.<o:p></o:p></p>
<p><o:p> </o:p></p>
<p>Has anyone met similar issues and if so, how did you
fix that issue? Thank you in advance for your help.<o:p></o:p></p>
<p><o:p> </o:p></p>
<p>Best regards,<o:p></o:p></p>
<pre>-- <o:p></o:p></pre>
<pre>Dr. Arthur Hirsch-Passicos<o:p></o:p></pre>
<pre>Post-doctoral Researcher<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Laser Particle Acceleration Division<o:p></o:p></pre>
<pre>Institute of Radiation Physics<o:p></o:p></pre>
<pre>Helmholtz-Zentrum Dresden-Rossendorf e.V.<o:p></o:p></pre>
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</blockquote>
<pre class="moz-signature" cols="72">--
Dr. Arthur Hirsch-Passicos
Post-doctoral Researcher
Laser Particle Acceleration Division
Institute of Radiation Physics
Helmholtz-Zentrum Dresden-Rossendorf e.V.</pre>
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