Updated the ANARCHY-PU scheme with the new required functions for entropy floor and star formation.

src/hydro/AnarchyPU/hydro.h

@@ -362,6 +362,23 @@ hydro_set_physical_internal_energy_dt(struct part *restrict p,
   p->u_dt = du_dt / cosmo->a_factor_internal_energy;
 }
 
+/**
+ * @brief Sets the physical entropy of a particle
+ *
+ * @param p The particle of interest.
+ * @param xp The extended particle data.
+ * @param cosmo Cosmology data structure
+ * @param entropy The physical entropy
+ */
+__attribute__((always_inline)) INLINE static void hydro_set_physical_entropy(
+    struct part *p, struct xpart *xp, const struct cosmology *cosmo,
+    const float entropy) {
+
+  /* Note there is no conversion from physical to comoving entropy */
+  const float comoving_entropy = entropy;
+  xp->u_full = gas_internal_energy_from_entropy(p->rho, comoving_entropy);
+}
+
 /**
  * @brief Computes the hydro time-step of a given particle
  *

src/hydro/AnarchyPU/hydro_part.h

@@ -33,6 +33,8 @@
 
 #include "chemistry_struct.h"
 #include "cooling_struct.h"
+#include "sftracers_struct.h"
+#include "tracers_struct.h"
 
 /**
  * @brief Particle fields not needed during the SPH loops over neighbours.
@@ -61,6 +63,12 @@ struct xpart {
   /*! Additional data used to record cooling information */
   struct cooling_xpart_data cooling_data;
 
+  /* Additional data used by the tracers */
+  struct tracers_xpart_data tracers_data;
+
+  /* Additional data used by the tracers */
+  struct sftracers_xpart_data sftracers_data;
+
 } SWIFT_STRUCT_ALIGN;
 
 /**