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Re: Laplacian solver
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@xxxxxxxxx <mep4gk01@xxxxxxxxx> 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