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Re: [HG DOLFIN] Make rank() and dim() virtual (overloadable by user).

 

Alessio Quaglino wrote:
Alessio Quaglino wrote:
With "the mesh remains constant" is meant that the vertices cannot move
or
that there should not be any connectivity change?

No connectivity changes.

I see that in

void Assembler::assemble(GenericTensor& A, const Form& form,
                         bool reset_tensor)
{
  assemble(A, form.form(), form.coefficients(), 0, 0, 0);
}

reset_tensor is not used. Is this wanted? The initGlobalTensor takes 90%
of my runtime (I think it wasn't like this before the last release).



That's exactly why it's there. If the matrix has already been initialised, then there is not need to re-initialise. This will typically be useful for nonlinear problems.

If initialising the matrix is requiring 90% of your runtime, you're probably doing something strange. Initialising the matrix does now take more time, with the trade-off that assembly is now much faster and less memory is required.

Garth


Alessio


Garth

Alessio


One or more new changesets pushed to the primary dolfin repository.
A short summary of the last three changesets is included below.

changeset:   3358:fe232f61370532bd51b0f77df3fdd6aeaf5aa82c
tag:         tip
user:        "Anders Logg <logg at simula.no>"
date:        Tue Aug 28 14:50:21 2007 +0200
files:       src/kernel/fem/Assembler.cpp src/kernel/fem/assemble.cpp
src/kernel/fem/dolfin/Assembler.h src/kernel/pde/LinearPDE.cpp
src/kernel/pde/NonlinearPDE.cpp
description:
Add mesh to constructor of Assembler. Reuse of dof maps requires
that the mesh remains constant.


changeset:   3357:4ad8f4efd1d6c87e9d6dc82d85e2d8f3e4facff0
user:        "Anders Logg <logg at simula.no>"
date:        Tue Aug 28 14:26:43 2007 +0200
files:       src/kernel/function/UserFunction.cpp
src/kernel/function/dolfin/Function.h
src/kernel/function/dolfin/UserFunction.h
description:
Make rank() and dim() virtual (overloadable by user).


changeset:   3356:24c98268945163d11ab3b45f08f6015c25b4546c
user:        "Anders Logg <logg at simula.no>"
date:        Tue Aug 28 13:38:22 2007 +0200
files:       src/demo/pde/poisson/python/demo.py
description:
test

----------------------------------------------------------------------
For more details, visit http://www.fenics.org/hg/dolfin



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