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<p class="MsoNormal">Hi Everyone,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We’re having some trouble running pw2wannier on a very large system as it is running very slow. To give some comparison, we are able to finish the nscf calculation in ~4hours, while pw2wannier has not finished the first MMN: iknum step
even after ~8 hours of runtime. It seems like in theory pw2wannier should be parallelizable but we found poor performance beyond a single node.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there anything we can do to help speed up the process? Parallelization steps to try out or common pitfalls that we could avoid?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Daniel <o:p></o:p></p>
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