[CIG-MC] coupler & multigrid solver?
tan2 at geodynamics.org
Thu Aug 12 09:18:15 PDT 2010
> So, I'm wondering why doesn't the coupler work with multigrid? Is this
> something that should work,
> but hasn't been tested, or is there something about how the
> information gets past between the
> coupled models that prevents the use of the multigrid solver?
The coupler currently doesn't work with multigrid.
For the coupler to work, the boundary condition arrays of embedded
solver needs to be updated at every time step. When I wrote the code I
wasn't familiar with multigrid solver and didn't know how to update the
boundary condition arrays for multigrid solver. So the multigrid coupler
was not implemented. Now, I know the multigrid solver better and find
that the implementation won't be difficult, but I never get around to
write the code. Since you are motivated and understand CitcomS' internal
quite well, maybe we can work together to write the code?
PS: I think most people on the mailing list don't care about the
implementation. Maybe we should discuss the detail further off the list.
Institute for Geophysics
University of Texas, Austin
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10100 Burnet Rd. (R2200),
Austin, TX 78758-4445
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