Z4co: relax the requirement of ghost points

EinsteinToolkit · Sep 10, 2024 · 4adf73d · 4adf73d
1 parent 6de2996
commit 4adf73d
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/Z4co/src/constraint.cxx b/Z4co/src/constraint.cxx
@@ -37,8 +37,8 @@ extern "C" void Z4co_Constraints(CCTK_ARGUMENTS) {
   DECLARE_CCTK_PARAMETERS;
 
   for (int d = 0; d < 3; ++d)
-    if (cctk_nghostzones[d] < deriv_order / 2 + 1)
-      CCTK_VERROR("Need at least %d ghost zones", deriv_order / 2 + 1);
+    if (cctk_nghostzones[d] < deriv_order / 2)
+      CCTK_VERROR("Need at least %d ghost zones", deriv_order / 2);
 
   //
 

diff --git a/Z4co/src/rhs.cxx b/Z4co/src/rhs.cxx
@@ -39,8 +39,8 @@ extern "C" void Z4co_RHS(CCTK_ARGUMENTS) {
   DECLARE_CCTK_PARAMETERS;
 
   for (int d = 0; d < 3; ++d)
-    if (cctk_nghostzones[d] < deriv_order / 2 + 1)
-      CCTK_VERROR("Need at least %d ghost zones", deriv_order / 2 + 1);
+    if (cctk_nghostzones[d] < deriv_order / 2)
+      CCTK_VERROR("Need at least %d ghost zones", deriv_order / 2);
 
   const array<int, dim> indextype = {0, 0, 0};
   const array<int, dim> nghostzones = {cctk_nghostzones[0], cctk_nghostzones[1],