Re: [petsc-users] monitoring the convergence of fieldsplit 0 and 1

2015-04-11 Thread Klaij, Christiaan
Barry, Matt Thanks, the total iteration count is already very useful. Looking forward to the custom monitors as well. Chris From: Barry Smith bsm...@mcs.anl.gov Sent: Saturday, April 11, 2015 12:27 AM To: Klaij, Christiaan Cc: petsc-users@mcs.anl.gov

[petsc-users] Uninterpolating a distributed mesh

2015-04-11 Thread Justin Chang
Hello, When I call DMPlexUninterpolate(...) on a distributed mesh (say 2 processors), it seems to overwrite the ghost points (i.e., the points not locally owned by the processor) and treats all points as if they are local to the processor. Say I have this 2D cell-vertex mesh: 1415-16 |

Re: [petsc-users] Recommended examples for using KSP and multigrid with DM

2015-04-11 Thread TAY wee-beng
Hi, I'm using DMDA. The LHS of the poisson eqn is fixed, only the RHS changes. I thought I can't find ex29.c in the current ver of PETSc, so I thought it's no longer valid. Do I always have to get the jacobian as in ex29 to solve the Poisson eqn? What about a good ex. using KSPBCGS to solve