dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Mon, Jun 01, 2009 at 03:50:19PM +0100, Garth N. Wells wrote:
> 
> 
> 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?

I don't know but I'm starting to remember that's why we switched to
std::vector a year back.

-- 
Anders


> 
> 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
> > _______________________________________________
> > DOLFIN-dev mailing list
> > DOLFIN-dev@xxxxxxxxxx
> > http://www.fenics.org/mailman/listinfo/dolfin-dev
> 
> 
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