[petsc-users] parallel incomplete Cholesky conjugate gradient solver

[Li, Zhisong (lizs)]

Hi, Petsc Team,

For those elliptic Poisson-style equations, the matrix is often non-symmetrical and costly to solve. And it's often mentioned that the incomplete Cholesky conjugate gradient (ICCG) method will be the best choice for handling these problems. 

In Petsc, the ICC preconditioner is only implemented in serial processing.  And parallel ICC is not available in other packages such as Hypre.  Do you know how to achieve an ICCG in parallel processing for an existing Petsc code without too much effort?

Thank you very much.



Zhisong Li