[petsc-users] user defined grids

[praveen kumar]

Forgot to mention, it is a structured cartesian non-uniform mesh.

On Wed, Mar 2, 2016 at 8:31 PM, praveen kumar <praveenpetsc at gmail.com>
wrote:

> Dear all,
>
> I am employing PETSc for DD in a serial fortran code and I would be using
> the solver from serial code itself. In my programme there is subroutine
> which reads an input file for the grids.  I have two questions:
>
>
> 1.  The input file contains : No. of segments in each direction, Length of
> each segment, Grid expansion ratio for each segment, dx(min) and dx(max)
> (min and max size of sub-division for each segment), No. of uniform
> sub-divisions in each segment. Will I be able to include all these details
> in DMDAcreate3D?  Is there any example? If no, then is there any way to
> retain the input file section and still use PETSc?
>
>
> 2. Moreover application requires that, I call the Grid subroutine after
> some fixed number of iterations.
>
>
> Would you suggest how to fix the above two?
>
>
> Thanks,
>
> Praveen
>
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