[cig-commits] r16830 - short/3D/PyLith/trunk/examples/bar_shearwave/quad4

[brad at geodynamics.org]

Author: brad
Date: 2010-05-29 13:21:54 -0700 (Sat, 29 May 2010)
New Revision: 16830

Modified:
   short/3D/PyLith/trunk/examples/bar_shearwave/quad4/dynamicfault.cfg
   short/3D/PyLith/trunk/examples/bar_shearwave/quad4/shearwave_kinematicslip.cfg
Log:
Added more comments.

Modified: short/3D/PyLith/trunk/examples/bar_shearwave/quad4/dynamicfault.cfg
===================================================================
--- short/3D/PyLith/trunk/examples/bar_shearwave/quad4/dynamicfault.cfg	2010-05-29 19:57:19 UTC (rev 16829)
+++ short/3D/PyLith/trunk/examples/bar_shearwave/quad4/dynamicfault.cfg	2010-05-29 20:21:54 UTC (rev 16830)
@@ -17,7 +17,10 @@
 # ----------------------------------------------------------------------
 [pylithapp.timedependent]
 
-# Switch to a lumped Jacobian matrix.
+# Overwrite the use of explicit time stepping with a full Jacobian
+# matrix set in pylithapp.cfg with a lumped Jacobian matrix. The
+# lumped Jacobian reduces memory use and uncouples the degrees of
+# freedom in the solve, permitting use of a very fast, simple solver.
 formulation = pylith.problems.ExplicitLumped
 
 # ----------------------------------------------------------------------

Modified: short/3D/PyLith/trunk/examples/bar_shearwave/quad4/shearwave_kinematicslip.cfg
===================================================================
--- short/3D/PyLith/trunk/examples/bar_shearwave/quad4/shearwave_kinematicslip.cfg	2010-05-29 19:57:19 UTC (rev 16829)
+++ short/3D/PyLith/trunk/examples/bar_shearwave/quad4/shearwave_kinematicslip.cfg	2010-05-29 20:21:54 UTC (rev 16830)
@@ -37,8 +37,11 @@
 # ----------------------------------------------------------------------
 [pylithapp.timedependent]
 
-# Uncomment the line below to switch to explicit time-stepping with a
-# lumped Jacobian matrix.
+# Uncomment the line below to overwrite the use of explicit time
+# stepping with a full Jacobian matrix set in pylithapp.cfg with a
+# lumped Jacobian matrix. The lumped Jacobian reduces memory use and
+# uncouples the degrees of freedom in the solve, permitting use of a
+# very fast, simple solver.
 #formulation = pylith.problems.ExplicitLumped
 
 # ----------------------------------------------------------------------