1 files changed, 5 insertions, 2 deletions
diff --git a/param.ccl b/param.ccl
index f389b10..225352e 100644
--- a/param.ccl
+++ b/param.ccl
@@ -159,9 +159,12 @@ INT padding_address_spacing "Number of CCTK_REALs to space starting addresses in
   0:*  ::  "Any positive number"
 } 24
 
-BOOLEAN zero_memory "Zero memory for grid functions and arrays at allocation time ?"
+KEYWORD initialize_memory "How to initialize memory for grid variables at allocation time" STEERABLE = ALWAYS
 {
-} "yes"
+  "none" :: "Do not initialize storage for allocated grid variables (default)"
+  "zero" :: "Zero out all elements of all allocated grid variables"
+  "NaN"  :: "Set all elements of allocated floating point grid variables to Not-a-Number values"
+} "none"
 
 
 KEYWORD partition "Is the partition manual"