[cig-commits] [commit] rajesh-petsc-schur: minor changes to get solve_Ahat_p_fhat_PETSc_Schur to work (b684666)

[cig_noreply at geodynamics.org]

Repository : https://github.com/geodynamics/citcoms

On branch  : rajesh-petsc-schur
Link       : https://github.com/geodynamics/citcoms/compare/464e1b32299b15819f93efd98d969cddb84dfe51...f97ae655a50bdbd6dac1923a3471ee4dae178fbd

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commit b6846661681f8ccc79943d187e2f57712910bb4b
Author: Rajesh Kommu <rajesh.kommu at gmail.com>
Date:   Thu Sep 11 16:13:37 2014 -0700

    minor changes to get solve_Ahat_p_fhat_PETSc_Schur to work


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b6846661681f8ccc79943d187e2f57712910bb4b
 lib/Stokes_flow_Incomp.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/Stokes_flow_Incomp.c b/lib/Stokes_flow_Incomp.c
index 01f8763..cb6cfe2 100644
--- a/lib/Stokes_flow_Incomp.c
+++ b/lib/Stokes_flow_Incomp.c
@@ -289,10 +289,10 @@ static PetscErrorCode solve_Ahat_p_fhat_PETSc_Schur(struct All_variables *E,
   /*-------------------------------------------*/
   ierr = KSPCreate(PETSC_COMM_WORLD, &S_ksp); CHKERRQ(ierr);
   ierr = KSPSetOperators(S_ksp, S, S); CHKERRQ(ierr);
-  ierr = KSPGetPC(S_ksp, &S_pc); CHKERRQ(ierr);
+  //ierr = KSPGetPC(S_ksp, &S_pc); CHKERRQ(ierr);
   ierr = KSPSetType(S_ksp, "cg"); CHKERRQ(ierr);
-  ierr = PCSetType(S_pc, "none"); CHKERRQ(ierr);
-  ierr = KSPSetInitialGuessNonzero(S_ksp, PETSC_TRUE); CHKERRQ(ierr);
+  //ierr = PCSetType(S_pc, "none"); CHKERRQ(ierr);
+  //ierr = KSPSetInitialGuessNonzero(S_ksp, PETSC_FALSE); CHKERRQ(ierr);
 
   /*--------------------*/
   /* Solve for pressure */
@@ -306,7 +306,7 @@ static PetscErrorCode solve_Ahat_p_fhat_PETSc_Schur(struct All_variables *E,
   ierr = MatMult(E->G, PVec, fstar); CHKERRQ(ierr);
   ierr = VecAYPX(fstar, -1.0, FF); CHKERRQ(ierr);
   ierr = MatSchurComplementGetKSP(S, &inner_ksp); CHKERRQ(ierr);
-  ierr = KSPSetInitialGuessNonzero(inner_ksp, PETSC_TRUE); CHKERRQ(ierr);
+  //ierr = KSPSetInitialGuessNonzero(inner_ksp, PETSC_FALSE); CHKERRQ(ierr);
   ierr = KSPSolve(inner_ksp, fstar, VVec); CHKERRQ(ierr);
   //strip_bcs_from_residual_PETSc( E, VVec, lev );