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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I am trying to scale up on computational resources and I came across a few issues. First of all, I am running the same +ug example (a modification of 2D Zpinch template) varying the number of cores, nxb and nyb but it
shows no speed up as the number of cores increase (I am tuning Iprocs, Jprocs, nxb and nyb to always get an approximately equal grid).
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Furthermore, at a certain number of cores the program execution interrupts, and I get a SIGBUS error (which I attach to this message). Am I missing something? Is there any additional thing to consider?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I will also attach the log file of one successful run using 36 cores and nxb=nyb=16 (which shows little or no speed up in comparison to a run on 12 cores and nxb=nyb=28). Thank you in advance for any help.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Pedro<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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