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:
call DMDACreate3d( PETSC_COMM_WORLD , DMDA_BOUNDARY_PERIODIC ,
DMDA_BOUNDARY_PERIODIC, &
& DMDA_BOUNDARY_PERIODIC , DMDA_STENCIL_STAR,
256 , 256 , 256 , 2 , 2 , 1, 1 , 1 , &
& 128 , 128 , 256, da , ierr)
Thank you very much for your help.
Michele
On 05/17/2013 03:16 PM, Jed Brown wrote:
Michele Rosso <[email protected]> writes:
Thank you.
I tried to run with
-pc_type mg -pc_mg_levels 3
Call KSPSetDM(). Look at src/ksp/ksp/examples/tutorials/ex45.c or
src/snes/examples/tutorials/ex5.c
