Correction to hydro_get_pressure() in the minimal-SPH case.

src/engine.c

@@ -330,8 +330,8 @@ void engine_redistribute(struct engine *e) {
           r++;
         }
       }
-      message("%ld of %ld (%.2f%%) of particles moved", total - unmoved,
-              total, 100.0 * (double)(total - unmoved) / (double)total);
+      message("%ld of %ld (%.2f%%) of particles moved", total - unmoved, total,
+              100.0 * (double)(total - unmoved) / (double)total);
     }
   }
 

src/hydro/Minimal/hydro.h

@@ -66,7 +66,9 @@ __attribute__((always_inline)) INLINE static float hydro_get_internal_energy(
 __attribute__((always_inline)) INLINE static float hydro_get_pressure(
     const struct part *restrict p, float dt) {
 
-  return p->force.pressure;
+  const float u = p->u + p->u_dt * dt;
+
+  return gas_pressure_from_internal_energy(p->rho, u);
 }
 
 /**