On 11/18/25 09:50, Nihar Bhardwaj Darbhamulla wrote:
The issue appears to be very long times taken for setting up the
sparsity patterns and initializing the matrices. These are the timing
measurements I have made with 1 and 2 processes with 214788 and 855556
degrees of freedom. I'm not particularly sure as to what maybe causing
this bottleneck - my hunch has to do with load-balancing the individual
blocks.
I don't know either -- but put timers around individual lines or blocks
of lines to see which of the many functions you call is the expensive one!
Best
W.
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