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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I used the flags <span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;background:#E9EAF6;mso-fareast-language:EN-GB">-memory_view -malloc_log
</span> to ran a problem on the same size on 32 cores and 64 cores.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I understand what is total, max and min memory usage of the problem is. However I don’t understand the difference between Maximum and Current process memory?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I also curious to understand why the memory usage is different on 32 cores (1 node, 2 sockets with 16 cores/socket) and 64 cores (2 nodes) for a problem of the same size?<span style="mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">On 32 core:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">Summary of Memory Usage in PETSc<o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">Maximum (over computational time) process memory: total 7.5014e+10 max 2.6396e+09 min 2.0659e+09<o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">Current process memory: total 3.2583e+10 max 1.3562e+09
min 8.3587e+08<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">On 64 core:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">Summary of Memory Usage in PETSc<o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">Maximum (over computational time) process memory: total 7.9337e+10 max 1.5433e+09 min 1.0319e+09<o:p></o:p></span></p>
<p class="MsoNormal" style="background:#E9EAF6"><span style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;mso-fareast-language:EN-GB">Current process memory: total 6.4491e+10 max 1.2090e+09
min 8.4000e+08<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kind regards,<o:p></o:p></p>
<p class="MsoNormal">Karthik.<o:p></o:p></p>
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