Hello Md Mahmudul,
I'm running also NSE, and with higher degree of freedom. It's not taking
that much time. In order to understand what is going on, i've got some
questions :
1) are you in debug compilation mode ?
2) it seems that you are solving a linear system with a direct method.
Is there behind an iterative solver somewhere ?
3) you may want to use the TimerOutput class to understand where you are
spending all the time. My guess is that it's not in the direct solver
(umfpack)
Best,
Yann
Le 4/15/2025 à 9:16 AM, Md Mahmudul Islam a écrit :
Hello Everyone,
Hope everyone of this group are in good health. I am working on
uncertainty quantification of NSE 2nd degree. I am using umfpack direct
solver to solve my system matrix.
In the experiment, if I run 2D mesh with 100k degrees of freedom, I can
get my result within 12-13 days of running code. But if I run 3D mesh it
takes much longer time than expected.
Any suggestion how I can run 3D mesh in less time period?
Regards,
Md Mahmudul Islam
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