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-rw-r--r--interface.ccl3
1 files changed, 3 insertions, 0 deletions
diff --git a/interface.ccl b/interface.ccl
index 171bc4a..100ed3a 100644
--- a/interface.ccl
+++ b/interface.ccl
@@ -5,3 +5,6 @@ IMPLEMENTS: Slab
INCLUDES HEADER: slab.h IN Slab.h
INCLUDES HEADER: slab.inc IN Slab.inc
+
+CCTK_INT FUNCTION GetMPICommWorld (CCTK_POINTER_TO_CONST IN cctkGH)
+USES FUNCTION GetMPICommWorld