Michele Rosso <[email protected]> writes: > I added KSPSetDM() and now the error I receive is: > > [0]PETSC ERROR: --------------------- Error Message > ------------------------------------ > [0]PETSC ERROR: No support for this operation for this object type! > [0]PETSC ERROR: For coloring efficiency ensure number of grid points in > X is divisible > by 2*stencil_width + 1 > ! > [0]PETSC ERROR: > ------------------------------------------------------------------------ > [0]PETSC ERROR: Petsc Release Version 3.3.0, Patch 3, Wed Aug 29 > 11:26:24 CDT 2012 > [0]PETSC ERROR: See docs/changes/index.html for recent updates. > [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting. > [0]PETSC ERROR: See docs/index.html for manual pages. > [0]PETSC ERROR: > ------------------------------------------------------------------------ > [0]PETSC ERROR: ./hit on a named nid25119 by Unknown Fri May 17 > 17:41:05 2013 > [0]PETSC ERROR: Libraries linked from > [0]PETSC ERROR: Configure run at > [0]PETSC ERROR: Configure options > [0]PETSC ERROR: > ------------------------------------------------------------------------ > [0]PETSC ERROR: DMCreateColoring_DA_3d_MPIAIJ() line 288 in > src/dm/impls/da/fdda.c > [0]PETSC ERROR: DMCreateColoring_DA() line 172 in src/dm/impls/da/fdda.c > [0]PETSC ERROR: DMCreateColoring() line 709 in src/dm/interface/dm.c > [0]PETSC ERROR: DMComputeJacobian() line 2206 in src/dm/interface/dm.c > [0]PETSC ERROR: KSPSetUp() line 228 in src/ksp/ksp/interface/itfunc.c > > > My 3D grid is composed by 256^3 nodes, I am using 4 processors and the > the DMDA is initialized as:
Yes, with a vertex-centered discretization, use 257^3 instead.
