CFD Online Discussion Forums

CFD Online Discussion Forums (
-   Main CFD Forum (
-   -   Parallel conjugate gradient for poisson equations (

rahulv November 9, 2009 12:55

Parallel conjugate gradient for poisson equations
Hi friends

I am working on implementation of conjugate gradient method specifically for sparse matrix, which arises after discretisation of Poisson equation. i implemented ILU0 preconditioner.
Now i am trying to parallelise the code using MPI command..
In current code needs to exchange information three times among various processor in each iteration of CG , which takes lots of time.
can anyone please suggest me some way to reduce number of data exchange per iterations.


rahulv April 26, 2011 05:11

i got it..
i did it... :)
if anyone need the source code for CG,PCG, parallel CG and parallel PCG for solving poisson equation . please mail me rah00002004[at] .

All times are GMT -4. The time now is 07:45.