Laplacian solver

[Matthew Knepley]

I suggest looking at the examples. For instance, this is the FD Laplacian:


http://www-unix.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/src/ksp/ksp/examples/tutorials/ex2.c.html

If you have a logically Cartesian grid, I advise you to use the DA object:


http://www-unix.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/src/snes/examples/tutorials/ex5.c.html

    Matt

On 5/22/06, mep4gk01 at ucy.ac.cy <mep4gk01 at ucy.ac.cy> wrote:
>
> Dear Sirs,
>
> My name is George Katsambas and I am an MSc student at the University of
> Cyprus (mechanical engineering department). I am trying to parallelize a
> Laplacian sovler using BiCGStab method (in Fortran). After a lot of effort I
> create, using MPI, the system Ax=b but it was very difficult for me, to
> parallelize the serial solver so I download and installed PETSc.  I read the
> manual and I run the tutorials but I cannot understand how I can pass my
> data into the PETSc routines in order to prepare the data for the KSP
> solver. Can you please give some quitelines how I can do this and if it is
> possible to be done. Your help will be very valuable for me.
>
> Best regards,
> George Katsambas
>
>


-- 
"Failure has a thousand explanations. Success doesn't need one" -- Sir Alec
Guiness
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