dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

DOLFIN wrote:
> One or more new changesets pushed to the primary dolfin repository.
> A short summary of the last three changesets is included below.
>
> changeset:   6246:eaa1e745ef37140f7c0edb7180e1d494b9145632
> tag:         tip
> user:        Anders Logg <logg@xxxxxxxxx>
> date:        Mon Jun 01 16:44:47 2009 +0200
> files:       bench/fem/assembly/cpp/bench.log
> description:
> Rerun benchmark after change from std::vector to std::set in SparsityPattern.
> Deleting sparsity pattern seems to take much longer.

I didn't look at the delete phase because I didn't expect it to be an 
issue. Why is deleting slow?

Garth

> changeset:   6245:30c1540b12097130e3ed48ed572819471c884a7b
> user:        "Garth N. Wells <gnw20@xxxxxxxxx>"
> date:        Mon Jun 01 15:06:26 2009 +0100
> files:       dolfin/la/EpetraSparsityPattern.cpp dolfin/la/EpetraSparsityPattern.h dolfin/la/GenericSparsityPattern.h dolfin/la/SparsityPattern.cpp dolfin/la/SparsityPattern.h dolfin/la/uBLASMatrix.h
> description:
> Use std::set in SparsityPattern.
>
> Some performance issues seem to have been resolved with std::set.
>
> std::tr1::unsorted_set is faster, but requires some effort to sort. Sorting is only relevant to the uBLAS backend at this point.
>
>
> changeset:   6244:ac9097f5f1f9877a65d30a44ce14679636a3fe26
> user:        Anders Logg <logg@xxxxxxxxx>
> date:        Mon Jun 01 00:01:06 2009 +0200
> files:       dolfin/common/real.cpp dolfin/common/real.h dolfin/math/Lagrange.cpp dolfin/math/Legendre.cpp dolfin/ode/Dependencies.cpp dolfin/ode/MonoAdaptiveFixedPointSolver.cpp dolfin/quadrature/GaussQuadrature.cpp dolfin/quadrature/LobattoQuadrature.cpp dolfin/quadrature/RadauQuadrature.cpp
> description:
> Fix abs --> real_abs problems when running without GMP
>
> ----------------------------------------------------------------------
> For more details, visit http://www.fenics.org/hg/dolfin
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