[cig-commits] r1406 - branches/s-wang2/for_deal.II/source/lac

[s-wang at dealii.org]

Author: s-wang
Date: 2012-11-30 23:36:48 -0700 (Fri, 30 Nov 2012)
New Revision: 1406

Modified:
   branches/s-wang2/for_deal.II/source/lac/petsc_precondition.cc
Log:
added comment in petsc_precondition.cc.

Modified: branches/s-wang2/for_deal.II/source/lac/petsc_precondition.cc
===================================================================
--- branches/s-wang2/for_deal.II/source/lac/petsc_precondition.cc	2012-12-01 05:41:37 UTC (rev 1405)
+++ branches/s-wang2/for_deal.II/source/lac/petsc_precondition.cc	2012-12-01 06:36:48 UTC (rev 1406)
@@ -379,13 +379,12 @@
     create_pc();
 
     int ierr;
-    ierr = PCSetType (pc, const_cast<char *>(PCILU));
+//    ierr = PCSetType (pc, const_cast<char *>(PCILU));		// shuqiangwang: does not work in parallel
     ierr = PCSetType (pc, PCSOR);
     AssertThrow (ierr == 0, ExcPETScError(ierr));
 
-//    ierr = PCSetType (pc, const_cast<char *>(PCHYPRE));
-//    AssertThrow (ierr == 0, ExcPETScError(ierr));
-//
+//    ierr = PCSetType (pc, const_cast<char *>(PCHYPRE));	// shuqiangwang: the ilu in hypre needs to
+//    AssertThrow (ierr == 0, ExcPETScError(ierr));			// be fine tuned further.
 //    ierr = PCHYPRESetType(pc, "pilut");
 //    AssertThrow (ierr == 0, ExcPETScError(ierr));