MoL: add Multirate capabilities. This add three new multirate RK schemes to MoL.

Flags indicate whether it is time to execute slow RHS computation.
For instance, in the RK4-RK2 scheme, there are 4 substeps in total, but the RK2 RHS are only evaluated in the very first and in the very last step of the four substeps.

From: Christian Reisswig, minor changes by Roland Haas



git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/MoL/trunk@175 578cdeb0-5ea1-4b81-8215-5a3b8777ee0b

1 files changed, 3 insertions, 0 deletions

diff --git a/src/MoL.h b/src/MoL.h
index 2135870..707c7e2 100644
--- a/src/MoL.h
+++ b/src/MoL.h
@@ -20,6 +20,7 @@ extern "C" {
 #ifdef CCODE
 
 CCTK_INT MoL_RegisterEvolved(CCTK_INT EvolvedIndex, CCTK_INT RHSIndex);
+CCTK_INT MoL_RegisterEvolvedSlow(CCTK_INT EvolvedIndex, CCTK_INT RHSIndexSlow);
 CCTK_INT MoL_RegisterConstrained(CCTK_INT ConstrainedIndex);
 CCTK_INT MoL_RegisterSaveAndRestore(CCTK_INT SandRIndex);
 CCTK_INT MoL_ChangeToEvolved(CCTK_INT EvolvedIndex, CCTK_INT RHSIndex);
@@ -28,6 +29,8 @@ CCTK_INT MoL_ChangeToSaveAndRestore(CCTK_INT SandRIndex);
 CCTK_INT MoL_ChangeToNone(CCTK_INT RemoveIndex);
 CCTK_INT MoL_RegisterEvolvedGroup(CCTK_INT EvolvedGroupIndex, 
                                   CCTK_INT RHSGroupIndex);
+CCTK_INT MoL_RegisterEvolvedGroupSlow(CCTK_INT EvolvedGroupIndexSlow,
+                                      CCTK_INT RHSGroupIndexSlow);
 CCTK_INT MoL_RegisterConstrainedGroup(CCTK_INT ConstrainedGroupIndex);
 CCTK_INT MoL_RegisterSaveAndRestoreGroup(CCTK_INT SandRGroupIndex);