Changes from Dylan Stark to allow registration of topology

routines and introducing a physical to logical processor
mapping.

Now it is possible to register custom topology routines if
you don't like the two ones we have at the moment (the
traditional one and the new one from Frank Loeffler).

You can also provide routines to optimise the placement of
neighbouring processes on the processors by giving a custom
mapping from the numbers PUGH uses for the processors to
the actual MPI processor.

Please treat this registration as semi-volatile for the moment
and coordinate with Dylan if you fancy using it.


git-svn-id: http://svn.cactuscode.org/arrangements/CactusPUGH/PUGH/trunk@475 b61c5cb5-eaca-4651-9a7a-d64986f99364

1 files changed, 42 insertions, 0 deletions

diff --git a/src/Register.h b/src/Register.h
new file mode 100644
index 0000000..5240375
--- /dev/null
+++ b/src/Register.h
@@ -0,0 +1,42 @@
+ /*@@
+   @header    Register.h
+   @date      Wed Dec 14 17:43:42 2005
+   @author    Tom Goodale
+   @desc 
+   This is a template header function
+   @enddesc
+   @version $Header$
+ @@*/
+
+#ifndef _PUGH_REGISTER_H_
+#define _PUGH_REGISTER_H_ 1
+
+#ifdef __cplusplus
+extern "C" 
+{
+#endif
+
+int PUGH_RegisterGenerateTopology(int (*GenerateTopology) (int dim,
+                                                           int total_procs, 
+                                                           const int *nsize, 
+                                                           const int *nghostzones, 
+                                                           int *nprocs), 
+                                  const char *topologyname);
+
+int PUGH_RegisterP2L(
+                     void *(*CreateP2LTranslation) (int dim, 
+                                                    int *nprocs, 
+                                                    int np),
+                     int   (*DestroyP2LTranslation) (void *table),
+                     int   (*PhysicalToLogical) (void *table, 
+                                                 int proc),
+                     int   (*LogicalToPhysical) (void *table, 
+                                                 int num),
+                     const char *p2lname);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PUGH_REGISTER_H_ */