<div dir="ltr"><div><div><div>Hi Po-Yu, <br><br></div>the error message you are having is misleading. <br><br>As Norbert mentioned, the particles used by the laser unit are a different beast altogether but share some of the infrastructure. To allow for more rays you need to increase your ed_maxRayCount runtime parameter in the flash.par, making sure that the total number of rays you are launching does not exceed this number. <br><br></div><div>I'll update the error message to reflect this. <br></div><div><br></div>Best,<br></div>-- Petros<br> <br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 18, 2014 at 2:36 PM, Norbert Flocke <span dir="ltr"><<a href="mailto:flocke@flash.uchicago.edu" target="_blank">flocke@flash.uchicago.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Po-Yu,<br>
<br>
The +laser setup uses -without-unit=Particles, which means that the Particles unit is dissabled. What the laser uses is the Grid/GridParticles<br>
routines to 'handle' particles. The rays from the laser are treated<br>
as particles when moving them through the grid. So the particles unit is<br>
different from the actual tools (sitting in the Grid unit) that are used to move the particles (in your case the rays) through the grid.<br>
<br>
Best regards,<br>
Norbert<div class="HOEnZb"><div class="h5"><br>
<br>
<br>
On Tue, 18 Nov 2014, pchang wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi John,<br>
Yes. That's what I did also. More precisely, I tried two ways: (1)have useParticles = .false. in flash.par (2) have setup variable +laser which automatically set -without-unit=Particles.<br>
I think in the log file, it shows "useParticles=F" just to show the run time setting. So I believe the particle unit has been disable. And that's why it doesn't make sense to me when I have an error about particle number when I don't have the unit<br>
<br>
Best,<br>
<br>
Po-Yu<br>
<br>
On 11/18/2014 3:17 PM, John ZuHone wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Po-Yu,<br>
<br>
Silly question, but in the flash.par, you set<br>
<br>
useParticles = .false.<br>
<br>
not<br>
<br>
useParticles=F<br>
<br>
correct?<br>
<br>
Best,<br>
<br>
John<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Nov 18, 2014, at 3:13 PM, pchang <<a href="mailto:pchang@lle.rochester.edu" target="_blank">pchang@lle.rochester.edu</a>> wrote:<br>
<br>
Hi all,<br>
I am doing simulation for imploding cylindrical target using lasers. I am using the hydrodynamics units and don't use the particles unit. In the list of RuntimeParameters in the log file, I also have useparticles=F. So, I believe I don't have the particles unit in the simulations. It works fine when I have less than two laser beams. However, when I added more beams, the simulation stopped and gave an error:<br>
<br>
Overflow! Mesh PE 9 , gettingFrom 2 , recvCount 8068 , max particles 10000<br>
DRIVER_ABORT: [gr_ptMove]: Insufficient space in particles communication buffer: increase pt_maxPerProc<br>
<br>
So, my questions are:<br>
<br>
(1) I thought the particle unit was not used. Why did it consider the number of max particles.<br>
(2) If I have to have the particle unit, when can I increase pt_maxPerProc ? in the flash.par? or as setup variable?<br>
<br>
Thank you,<br>
<br>
Po-Yu<br>
<br>
<br>
-- <br>
Po-Yu Chang<br>
Postdoc<br>
Fusion Science Center,<br>
Laboratory for Laser Energetics<br>
University of Rochester<br>
250 East River Road<br>
Rochester, New York 14623<br>
Phone: <a href="tel:%28585%29%20273-5179" value="+15852735179" target="_blank">(585) 273-5179</a><br>
FAX: <a href="tel:%28585%29%20275-5960" value="+15852755960" target="_blank">(585) 275-5960</a><br>
<a href="mailto:pchang@lle.rochester.edu" target="_blank">pchang@lle.rochester.edu</a><br>
</blockquote>
<br>
</blockquote>
<br>
<br>
-- <br>
Po-Yu Chang<br>
Postdoc<br>
Fusion Science Center,<br>
Laboratory for Laser Energetics<br>
University of Rochester<br>
250 East River Road<br>
Rochester, New York 14623<br>
Phone: <a href="tel:%28585%29%20273-5179" value="+15852735179" target="_blank">(585) 273-5179</a><br>
FAX: <a href="tel:%28585%29%20275-5960" value="+15852755960" target="_blank">(585) 275-5960</a><br>
<a href="mailto:pchang@lle.rochester.edu" target="_blank">pchang@lle.rochester.edu</a><br>
<br>
</blockquote>
</div></div></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr">/* ************************************************* *<br> Petros Tzeferacos, PhD <br> <br> Research Scientist, <br> Associate Director & Code Group Leader,<br> Flash Center for Computational Science, <br> Department of Astronomy & Astrophysics,<br> University of Chicago. <br> 5747 S. Ellis Ave, Jones Lab. room 317<br> Chicago, IL 60637 <br> Tel. 773-834-3236 <br> <a href="mailto:petros.tzeferacos@flash.uchicago.edu" target="_blank">petros.tzeferacos@flash.uchicago.edu</a> <br> * ************************************************* */<br></div></div>
</div>