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-rw-r--r--src/driver/find_horizons.cc4
-rw-r--r--src/driver/mask.cc5
2 files changed, 9 insertions, 0 deletions
diff --git a/src/driver/find_horizons.cc b/src/driver/find_horizons.cc
index e8336db..2a0cd39 100644
--- a/src/driver/find_horizons.cc
+++ b/src/driver/find_horizons.cc
@@ -91,6 +91,10 @@ extern "C"
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_PARAMETERS
+// only try to find horizons every find_every time steps
+if ((cctk_iteration % find_every) != 0)
+ then return;
+
if (state.timer_handle >= 0)
then CCTK_TimerResetI(state.timer_handle);
diff --git a/src/driver/mask.cc b/src/driver/mask.cc
index 898e899..87e0506 100644
--- a/src/driver/mask.cc
+++ b/src/driver/mask.cc
@@ -153,6 +153,11 @@ extern "C"
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_PARAMETERS
+// only try to do mask stuff if we've found AHs at this time level
+// ==> only try every find_every time steps
+if ((cctk_iteration % find_every) != 0)
+ then return;
+
const struct verbose_info& verbose_info = state.verbose_info;
struct mask_info& mask_info = state.mask_info;