RT Sub-cycling

src/rt/debug/rt_io.h

@@ -95,8 +95,11 @@ INLINE static int rt_write_particles(const struct part* parts,
       "RTDebugRadAbsorbedTot", ULONGLONG, 1, UNIT_CONV_NO_UNITS, 0, parts,
       rt_data.debug_radiation_absorbed_tot,
       "Radiation absorbed by this part during its lifetime");
+  list[7] = io_make_output_field("RTDebugSubcycles", INT, 1, UNIT_CONV_NO_UNITS,
+                                 0, parts, rt_data.debug_nsubcycles,
+                                 "How many times this part was subcycled");
 
-  return 7;
+  return 8;
 }
 
 /**

src/rt/debug/rt_properties.h

@@ -47,6 +47,9 @@ struct rt_props {
   /* total radiation absorbed by gas. This is not really a property,
    * but a placeholder to sum up a global variable */
   unsigned long long debug_radiation_absorbed_tot;
+
+  /* Max number of subcycles per hydro step */
+  int debug_max_nr_subcycles;
 };
 
 /**
@@ -83,13 +86,10 @@ __attribute__((always_inline)) INLINE static void rt_props_init(
   rtp->debug_radiation_absorbed_tot = 0ULL;
   rtp->debug_radiation_absorbed_this_step = 0ULL;
 
-  /* After initialisation, print params to screen */
-  rt_props_print(rtp);
-
-  /* Print a final message. */
-  if (engine_rank == 0) {
-    message("Radiative transfer initialized");
-  }
+  /* Don't make it an optional parameter here so we crash
+   * if I forgot to provide it */
+  rtp->debug_max_nr_subcycles =
+      parser_get_param_int(params, "TimeIntegration:max_nr_rt_subcycles");
 }
 
 /**

src/rt/none/rt_properties.h

@@ -57,11 +57,7 @@ __attribute__((always_inline)) INLINE static void rt_props_print(
 __attribute__((always_inline)) INLINE static void rt_props_init(
     struct rt_props* rtp, const struct phys_const* phys_const,
     const struct unit_system* us, struct swift_params* params,
-    struct cosmology* cosmo) {
-
-  /* After initialisation, print params to screen */
-  rt_props_print(rtp);
-}
+    struct cosmology* cosmo) {}
 
 /**
  * @brief Write an RT properties struct to the given FILE as a