[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: about Unstructured Meshes
On 3/2/07, Jianing Shi <jianings@xxxxxxxxx> wrote:
Well, let me rephrase my question. So the mesh support in PETSc
already includes the functionality of partitioning meshes, I guess,
using ParMetis, is that the case? Something that an end user need to
worry about is really how to generate a mesh that is tailored towards
his/her application.
It can use a range of partioners, like Chaco for instance.
I am trying to write a library on top of PETSc meshes that will
generate meshes according to some neurophysiology. I would like to
know what are the mesh generate softwares out there that will
interface nicely with PETSc, or if it makes sense for me to write my
own? Just would like to understand more about the data structure in
the PETSc ALE::Mesh classes. Is there any tutorial out there apart
from looking at the source code in the mesh directory?
1) No, it makes no sense for you to write a mesh generator
2) In 2D, Triangle. In 3d, the only free things are TetGen and Netgen. I support
TetGen. Hopefully, CMU will release its MG soon.
There is a tutorial on the website.
I am currently using the petsc-2.3.2-p3. Is there any new
functionality about meshes in the development version?
All the working stuff is in petsc-dev.
Matt
Jianing
--
One trouble is that despite this system, anyone who reads journals widely
and critically is forced to realize that there are scarcely any bars to eventual
publication. There seems to be no study too fragmented, no hypothesis too
trivial, no literature citation too biased or too egotistical, no design too
warped, no methodology too bungled, no presentation of results too
inaccurate, too obscure, and too contradictory, no analysis too self-serving,
no argument too circular, no conclusions too trifling or too unjustified, and
no grammar and syntax too offensive for a paper to end up in print. --
Drummond Rennie