<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div><div><div apple-content-edited="true"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div style="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-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div></div><div>Fig. 2 - Weak scaling of FLASH CCSN application on TACC Stampede</div><div><br></div><div>* - This particular simulation was started substantially “post-bounce” in the parlance of the CCSN community. Thus the shock was at a moderate radius and the neutrino leakage treatment was active. The initial progenitor model package with FLASH’s CCSN application is at the pre-bounce, collapse phase. Therefore, if you want to run this scaling test yourself, you will have to generate post-bounce initial conditions by running the 1D CCSN application to an adequate post-bounce time, then converting those 1D results into the ASCII format used by the 1D initial conditions reader.</div><div><br></div><div><br class="Apple-interchange-newline">--------------------------------------------------------</div><div>Sean M. Couch, Ph.D.</div>Flash Center for Computational Science<div>Department of Astronomy & Astrophysics</div><div>The University of Chicago</div><div>5747 S Ellis Ave, Jo 315</div><div>Chicago, IL 60637</div><div>(773) 702-3899 - office</div><div>(512) 997-8025 - cell</div><div><a href="http://www.flash.uchicago.edu/~smc">www.flash.uchicago.edu/~smc</a></div><div><br></div></span></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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<br><div><div>On Sep 18, 2014, at 5:23 AM, Richard Bower <<a href="mailto:r.g.bower@durham.ac.uk">r.g.bower@durham.ac.uk</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><br>I'm very keen to see this too (although I've not been running anything big with flash)... could you say something about the memory per core/node? This could be very useful for our next procurement... Richard<br><br><br>On 18 Sep 2014, at 07:46, Stefanie Walch wrote:<br><br><blockquote type="cite">Hi Sean,<br><br>Could you tell me which setup you used for the nice scaling plot you sent around?<br><br>Cheers,<br>Stefanie<br>===================================<br>Prof. Dr. Stefanie Walch<br>Physikalisches Institut I<br>Universität zu Köln<br>Zülpicher Straße 77<br>50937 Köln<br>Germany<br>email: <a href="mailto:walch@ph1.uni-koeln.de">walch@ph1.uni-koeln.de</a><br>phone: +49 (0) 221 4703497<br><br>On 17 Sep 2014, at 20:41, Sean Couch <<a href="mailto:smc@flash.uchicago.edu">smc@flash.uchicago.edu</a>> wrote:<br><br><blockquote type="cite">For fun, let’s play throwdown. Can anybody beat 525k cores (2 million threads of execution)? See attached (1 Mira node = 16 cores).<br><br>Sean<br><br><wkScaling.pdf><br><br>--------------------------------------------------------<br>Sean M. Couch<br>Flash Center for Computational Science<br>Department of Astronomy & Astrophysics<br>The University of Chicago<br>5747 S Ellis Ave, Jo 315<br>Chicago, IL 60637<br>(773) 702-3899 - office<br><a href="http://www.flash.uchicago.edu/~smc">www.flash.uchicago.edu/~smc</a><br><br><br><br><br><br><br>On Sep 17, 2014, at 1:30 PM, Rodrigo Fernandez <rafernan@berkeley.edu> wrote:<br><br><blockquote type="cite">Dear FLASH Users/Developers,<br><br>Does anybody know the maximum number of cores that FLASH has ever been run successfully with? Any reference for this? I need the information for a computing proposal.<br><br>Thanks!<br><br>Rodrigo<br><br><br><br></blockquote><br></blockquote><br></blockquote><br>------------------------------------------------------------------------------------------------------<br>Prof. Richard Bower Institute for Computational Cosmology<br> University of Durham<br>+44-191-3343526 <a href="mailto:r.g.bower@durham.ac.uk">r.g.bower@durham.ac.uk</a><br>------------------------------------------------------------------------------------------------------<br><br><br><br></blockquote></div><br></div></div></body></html>