Changeset 3776 for anuga_core/source/anuga_parallel/parallel_api.py

Timestamp:

Oct 13, 2006, 2:43:30 PM (18 years ago)

Author:

ole

Message:

Made parallel abstraction work on sequential machine without pypar.
Work on simple parallel example (plotting)

File:

• anuga_core/source/anuga_parallel/parallel_api.py (modified) (2 diffs)

anuga_core/source/anuga_parallel/parallel_api.py

@@ -5 +5 @@
 
 # Parallelism
-# The Python-MPI interface
-from pypar import size, rank, get_processor_name, finalize, send, receive
-#from anuga_parallel.parallel_abstraction import size, rank, get_processor_name, finalize #,send, receive
+
+# The abstract Python-MPI interface
+from anuga_parallel.parallel_abstraction import size, rank, get_processor_name
+from anuga_parallel.parallel_abstraction import finalize, send, receive
+from anuga_parallel.parallel_abstraction import pypar_available
+
+# Mesh partitioning
 from anuga_parallel.pmesh_divide  import pmesh_divide_metis
 from anuga_parallel.build_submesh import build_submesh
 from anuga_parallel.build_local   import build_local_mesh
-from anuga_parallel.build_commun  import send_submesh, rec_submesh, extract_hostmesh
-from anuga_parallel.parallel_shallow_water import Parallel_Domain
+
+# ANUGA parallel engine (only load if pypar can)
+if pypar_available:
+    from anuga_parallel.build_commun  import send_submesh
+    from anuga_parallel.build_commun  import rec_submesh
+    from anuga_parallel.build_commun  import extract_hostmesh
+    from anuga_parallel.parallel_shallow_water import Parallel_Domain
 
 
@@ -30 +39 @@
     """ Distribute the domain to all processes
     """
+
+    if not pypar_available: return domain # Bypass
 
     # For some obscure reason this communication must happen prior to