Alessio Quaglino wrote:
>> 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.
>
> Sorry my question was probably ill-posed. I mean that the matrix is
> re-initialized even if I set the flag reset_tensor to false because it is
> not passed to the inner assemble().
>
Try it out now and let me know if it works.
Garth
> Alessio
>
>
>> 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
>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> DOLFIN-dev mailing list
>>>>> DOLFIN-dev at fenics.org
>>>>> http://www.fenics.org/mailman/listinfo/dolfin-dev
>>>>>
>>>>
>>>
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>>>
>>
>>
>
>
>
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