Add runtime-configurable support for CCZ4.

1 files changed, 5 insertions, 0 deletions

diff --git a/param.ccl b/param.ccl
index 49169aa..35fa495 100644
--- a/param.ccl
+++ b/param.ccl
@@ -39,3 +39,8 @@ CCTK_REAL switchoff_time "" STEERABLE=recover
 BOOLEAN export_coeffs "Export the coefficients of the spectral expansion in alpha_coeffs" STEERABLE=recover
 {
 } "no"
+
+CCTK_INT ccz4 "Use CCZ4 or BSSN" STEERABLE=recover
+{
+    0:1 :: ""
+} 0