Hello! I'm looking at a "suspiciously slow" assembly and would like to determine what is going on. In general, what should one expect the most time-consuming step to be?
This is what my gprof looks like: Time: 61.97% unsigned int const* std::lower_bound 25.84% dolfin::uBlasMatrix<...>::add 8.27% UFC_NSEMomentum3DBilinearForm_cell_integral_0::tabulate_tensor 1.1% dolfin::uBlasMatrix<...>::init The element is linear on tetrahedra, and with a mesh of roughly 90k vertices assembling a system of size 290k x 290k takes about 20 seconds on my workstation (second swing takes about half that time if the matrix is not reset). Thanks! Dag
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