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Message #17091
Re: [Question #95433]: Dolfin 0.9.5 slowdown
Question #95433 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/95433
Nuno Lopes gave more information on the question:
In my case part of the problem is definitely with uBLAS and Umfpack:
In 0.9.5 PETSc LU is much faster than uBLAS LU (factorized solve)
-----------------------------------------------------------
Assemble cells | 0.011015 16.28 1478
Assemble exterior facets | 0.01 0.02 2
Build sparsity | 1.3532e-05 0.02 1478
Delete sparsity | 0 0 1478
Init tensor | 6.7659e-06 0.01 1478
LU solver | 0.020638 6.15 298
X:DOLFWAVE:END | 24.63 24.63 1
.........................................
Against the 83.71 s of uBLAS LU.
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