diff --git a/src/collectgroup.c b/src/collectgroup.c
index 221bd82c7c16976298e9fa7309b6fb99c9c91f26..b704a0a5ea33cc1c5332fc0575061ad8e38f4d21 100644
--- a/src/collectgroup.c
+++ b/src/collectgroup.c
@@ -99,9 +99,18 @@ void collectgroup1_apply(struct collectgroup1 *grp1, struct engine *e) {
  * @param g_updates the number of updated gravity particles on this node this
  * step.
  * @param s_updates the number of updated star particles on this node this step.
- * @param ti_end_min the minimum end time for next time step after this step.
- * @param ti_end_max the maximum end time for next time step after this step.
- * @param ti_beg_max the maximum begin time for next time step after this step.
+ * @param ti_hydro_end_min the minimum end time for next hydro time step after
+ * this step.
+ * @param ti_hydro_end_max the maximum end time for next hydro time step after
+ * this step.
+ * @param ti_hydro_beg_max the maximum begin time for next hydro time step after
+ * this step.
+ * @param ti_gravity_end_min the minimum end time for next gravity time step
+ * after this step.
+ * @param ti_gravity_end_max the maximum end time for next gravity time step
+ * after this step.
+ * @param ti_gravity_beg_max the maximum begin time for next gravity time step
+ * after this step.
  * @param forcerebuild whether a rebuild is required after this step.
  */
 void collectgroup1_init(struct collectgroup1 *grp1, size_t updates,
diff --git a/src/engine.c b/src/engine.c
index 1f4a05f08971ea9905ce8b7dec58690b5784a569..497e453ec14767df9a422f810e6ec447243c525c 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -1543,10 +1543,10 @@ void engine_exchange_cells(struct engine *e) {
   size_t count_parts_in = 0, count_gparts_in = 0, count_sparts_in = 0;
   for (int k = 0; k < nr_proxies; k++)
     for (int j = 0; j < e->proxies[k].nr_cells_in; j++) {
-      if(e->proxies[k].cells_in_type[j] & proxy_cell_type_hydro) 
-	count_parts_in += e->proxies[k].cells_in[j]->count;
-      if(e->proxies[k].cells_in_type[j] & proxy_cell_type_gravity) 
-	count_gparts_in += e->proxies[k].cells_in[j]->gcount;
+      if (e->proxies[k].cells_in_type[j] & proxy_cell_type_hydro)
+        count_parts_in += e->proxies[k].cells_in[j]->count;
+      if (e->proxies[k].cells_in_type[j] & proxy_cell_type_gravity)
+        count_gparts_in += e->proxies[k].cells_in[j]->gcount;
       count_sparts_in += e->proxies[k].cells_in[j]->scount;
     }
   if (count_parts_in > s->size_parts_foreign) {
@@ -1577,15 +1577,15 @@ void engine_exchange_cells(struct engine *e) {
   struct spart *sparts = s->sparts_foreign;
   for (int k = 0; k < nr_proxies; k++) {
     for (int j = 0; j < e->proxies[k].nr_cells_in; j++) {
-      
-      if(e->proxies[k].cells_in_type[j] & proxy_cell_type_hydro) {
-	cell_link_parts(e->proxies[k].cells_in[j], parts);
-	parts = &parts[e->proxies[k].cells_in[j]->count];
+
+      if (e->proxies[k].cells_in_type[j] & proxy_cell_type_hydro) {
+        cell_link_parts(e->proxies[k].cells_in[j], parts);
+        parts = &parts[e->proxies[k].cells_in[j]->count];
       }
 
-      if(e->proxies[k].cells_in_type[j] & proxy_cell_type_gravity) {
-	cell_link_gparts(e->proxies[k].cells_in[j], gparts);
-	gparts = &gparts[e->proxies[k].cells_in[j]->gcount];
+      if (e->proxies[k].cells_in_type[j] & proxy_cell_type_gravity) {
+        cell_link_gparts(e->proxies[k].cells_in[j], gparts);
+        gparts = &gparts[e->proxies[k].cells_in[j]->gcount];
       }
 
       cell_link_sparts(e->proxies[k].cells_in[j], sparts);
@@ -3451,65 +3451,14 @@ void engine_print_task_counts(struct engine *e) {
   const int nr_tasks = sched->nr_tasks;
   const struct task *const tasks = sched->tasks;
 
-  int count_send_ti = 0;
-  int count_recv_ti = 0;
-  int count_send_gpart = 0;
-  int count_recv_gpart = 0;
-  int count_send_xv = 0;
-  int count_recv_xv = 0;
-  int count_send_rho = 0;
-  int count_recv_rho = 0;
-
   /* Count and print the number of each task type. */
   int counts[task_type_count + 1];
   for (int k = 0; k <= task_type_count; k++) counts[k] = 0;
   for (int k = 0; k < nr_tasks; k++) {
     if (tasks[k].skip)
       counts[task_type_count] += 1;
-    else {
+    else
       counts[(int)tasks[k].type] += 1;
-
-      if (tasks[k].type == task_type_send &&
-          tasks[k].subtype == task_subtype_tend) {
-        count_send_ti++;
-        /* message("Send_ti: nodeID_i=%d cellID_i=%ld nodeID_j=%d cellID_j=%ld",
-         */
-        /* 	tasks[k].ci->nodeID, tasks[k].ci - e->s->cells_top, */
-        /* 	tasks[k].cj->nodeID, tasks[k].cj - e->s->cells_top); */
-      }
-      if (tasks[k].type == task_type_recv &&
-          tasks[k].subtype == task_subtype_tend) {
-        count_recv_ti++;
-        /* message("recv_rho: nodeID_i=%d cellID_i=%ld nodeID_j=n/a
-         * cellID_j=n/a", */
-        /* 	tasks[k].ci->nodeID, tasks[k].ci - e->s->cells_top ); */
-      }
-      if (tasks[k].type == task_type_send &&
-          tasks[k].subtype == task_subtype_gpart)
-        count_send_gpart++;
-      if (tasks[k].type == task_type_recv &&
-          tasks[k].subtype == task_subtype_gpart)
-        count_recv_gpart++;
-      if (tasks[k].type == task_type_send &&
-          tasks[k].subtype == task_subtype_xv)
-        count_send_xv++;
-      if (tasks[k].type == task_type_recv &&
-          tasks[k].subtype == task_subtype_xv)
-        count_recv_xv++;
-      if (tasks[k].type == task_type_send &&
-          tasks[k].subtype == task_subtype_rho) {
-        count_send_rho++;
-        /* message("Send_rho: nodeID_i=%d cellID_i=%ld nodeID_j=%d cellID_j=%ld", */
-        /*         tasks[k].ci->nodeID, tasks[k].ci - e->s->cells_top, */
-        /*         tasks[k].cj->nodeID, tasks[k].cj - e->s->cells_top); */
-      }
-      if (tasks[k].type == task_type_recv &&
-          tasks[k].subtype == task_subtype_rho) {
-        count_recv_rho++;
-        /* message("recv_rho: nodeID_i=%d cellID_i=%ld nodeID_j=n/a cellID_j=n/a", */
-        /*         tasks[k].ci->nodeID, tasks[k].ci - e->s->cells_top); */
-      }
-    }
   }
   message("Total = %d  (per cell = %d)", nr_tasks,
           (int)ceil((double)nr_tasks / e->s->tot_cells));
@@ -3524,15 +3473,9 @@ void engine_print_task_counts(struct engine *e) {
     printf(" %s=%i", taskID_names[k], counts[k]);
   printf(" skipped=%i ]\n", counts[task_type_count]);
   fflush(stdout);
-  /* message("nr_parts = %zu.", e->s->nr_parts); */
-  /* message("nr_gparts = %zu.", e->s->nr_gparts); */
-  /* message("nr_sparts = %zu.", e->s->nr_sparts); */
-  message("ti_current=%lld", e->ti_current);
-  message(
-      "send_ti=%d, recv_ti=%d, send_gpart=%d, recv_gpart=%d, send_xv=%d, "
-      "recv_xv=%d, send_rho=%d, recv_rho=%d",
-      count_send_ti, count_recv_ti, count_send_gpart, count_recv_gpart,
-      count_send_xv, count_recv_xv, count_send_rho, count_recv_rho);
+  message("nr_parts = %zu.", e->s->nr_parts);
+  message("nr_gparts = %zu.", e->s->nr_gparts);
+  message("nr_sparts = %zu.", e->s->nr_sparts);
 
   if (e->verbose)
     message("took %.3f %s.", clocks_from_ticks(getticks() - tic),
@@ -4319,9 +4262,6 @@ void engine_init_particles(struct engine *e, int flag_entropy_ICs,
   if (e->verbose) message("took %.3f %s.", e->wallclock_time, clocks_getunit());
 }
 
-/* integertime_t *address_hydro = 0; */
-/* integertime_t *address_gravity = 0; */
-
 /**
  * @brief Let the #engine loose to compute the forces.
  *
@@ -4365,22 +4305,6 @@ void engine_step(struct engine *e) {
   /* Prepare the tasks to be launched, rebuild or repartition if needed. */
   engine_prepare(e);
 
-  /* engine_print_task_counts(e); */
-  /* space_print_cells(e->s); */
-
-  /* /\* Register the time-step information *\/ */
-  /* if (e->step == 3) { */
-
-  /*   for (int i = 0; i < e->s->nr_cells; ++i) */
-  /*     if (&e->s->cells_top[i] - e->s->cells_top == 12) { */
-  /*       message("Found cell!"); */
-  /*       address_hydro = &e->s->cells_top[i].ti_hydro_end_min; */
-  /*       address_gravity = &e->s->cells_top[i].ti_gravity_end_min; */
-  /*       message("address: %p time_end=%lld", address_hydro, */
-  /*               e->s->cells_top[i].ti_hydro_end_min); */
-  /*     } */
-  /* } */
-
 #ifdef WITH_MPI
   /* Repartition the space amongst the nodes? */
   engine_repartition_trigger(e);
@@ -4713,13 +4637,13 @@ void engine_makeproxies(struct engine *e) {
 
   /* Compute how many cells away we need to walk */
   int delta = 1; /*hydro case */
-  if(with_gravity) {
+  if (with_gravity) {
     const double distance = 2.5 * cells[0].width[0] / props->theta_crit;
     delta = (int)(distance / cells[0].width[0]) + 1;
   }
 
   /* Let's be verbose about this choice */
-  if(e->verbose)
+  if (e->verbose)
     message("Looking for proxies up to %d top-level cells away", delta);
 
   /* Loop over each cell in the space. */
@@ -4731,8 +4655,8 @@ void engine_makeproxies(struct engine *e) {
         /* Get the cell ID. */
         const int cid = cell_getid(cdim, ind[0], ind[1], ind[2]);
 
-	double CoM_i[3] = {0., 0., 0.};
-	double r_max_i = 0.;
+        double CoM_i[3] = {0., 0., 0.};
+        double r_max_i = 0.;
 
         if (with_gravity) {
 
@@ -4743,7 +4667,7 @@ void engine_makeproxies(struct engine *e) {
           CoM_i[2] = multi_i->CoM[2];
           r_max_i = multi_i->r_max;
         }
-      
+
         /* Loop over all its neighbours (periodic). */
         for (int i = -delta; i <= delta; i++) {
           int ii = ind[0] + i;
@@ -4785,11 +4709,14 @@ void engine_makeproxies(struct engine *e) {
 
                 /* This is super-ugly but checks for direct neighbours */
                 /* with periodic BC */
-                if (((abs(ind[0] - ii) <= 1 || abs(ind[0] - ii - cdim[0]) <= 1 ||
+                if (((abs(ind[0] - ii) <= 1 ||
+                      abs(ind[0] - ii - cdim[0]) <= 1 ||
                       abs(ind[0] - ii + cdim[0]) <= 1) &&
-                     (abs(ind[1] - jj) <= 1 || abs(ind[1] - jj - cdim[1]) <= 1 ||
+                     (abs(ind[1] - jj) <= 1 ||
+                      abs(ind[1] - jj - cdim[1]) <= 1 ||
                       abs(ind[1] - jj + cdim[1]) <= 1) &&
-                     (abs(ind[2] - kk) <= 1 || abs(ind[2] - kk - cdim[2]) <= 1 ||
+                     (abs(ind[2] - kk) <= 1 ||
+                      abs(ind[2] - kk - cdim[2]) <= 1 ||
                       abs(ind[2] - kk + cdim[2]) <= 1)))
                   proxy_type |= (int)proxy_cell_type_hydro;
               }
diff --git a/src/runner_doiact_vec.c b/src/runner_doiact_vec.c
index bda7dba97d8e9c35e79ec8c16150f3ac6b372809..480fb6a3a4282703790adf87b2bc1872c394f2e2 100644
--- a/src/runner_doiact_vec.c
+++ b/src/runner_doiact_vec.c
@@ -397,15 +397,13 @@ __attribute__((always_inline)) INLINE static void populate_max_index_no_cache(
  * @param max_active_bin The largest time-bin active during this step.
  */
 __attribute__((always_inline)) INLINE static void
-populate_max_index_no_cache_force(const struct cell *ci, const struct cell *cj,
-                                  const struct entry *restrict sort_i,
-                                  const struct entry *restrict sort_j,
-                                  const float dx_max, const float rshift,
-                                  const double hi_max_raw,
-                                  const double hj_max_raw, const double h_max,
-                                  const double di_max, const double dj_min, int *max_index_i,
-                                  int *max_index_j, int *init_pi, int *init_pj,
-                                  const timebin_t max_active_bin) {
+populate_max_index_no_cache_force(
+    const struct cell *ci, const struct cell *cj,
+    const struct entry *restrict sort_i, const struct entry *restrict sort_j,
+    const float dx_max, const float rshift, const double hi_max_raw,
+    const double hj_max_raw, const double h_max, const double di_max,
+    const double dj_min, int *max_index_i, int *max_index_j, int *init_pi,
+    int *init_pj, const timebin_t max_active_bin) {
 
   const struct part *restrict parts_i = ci->parts;
   const struct part *restrict parts_j = cj->parts;
@@ -468,7 +466,7 @@ populate_max_index_no_cache_force(const struct cell *ci, const struct cell *cj,
   last_pj = -1;
   active_id = last_pj;
   while (last_pj < cj->count &&
-      sort_j[last_pj + 1].d - h_max - dx_max < di_max) {
+         sort_j[last_pj + 1].d - h_max - dx_max < di_max) {
     last_pj++;
     /* Store the index of the particle if it is active. */
     if (part_is_active_no_debug(&parts_j[sort_j[last_pj].i], max_active_bin))
@@ -1572,9 +1570,9 @@ void runner_dopair2_force_vec(struct runner *r, struct cell *ci,
   /* Also find the first pi that interacts with any particle in cj and the last
    * pj that interacts with any particle in ci. */
   populate_max_index_no_cache_force(ci, cj, sort_i, sort_j, dx_max, rshift,
-                                    hi_max_raw, hj_max_raw, h_max,
-                                    di_max, dj_min, max_index_i, max_index_j,
-                                    &first_pi, &last_pj, max_active_bin);
+                                    hi_max_raw, hj_max_raw, h_max, di_max,
+                                    dj_min, max_index_i, max_index_j, &first_pi,
+                                    &last_pj, max_active_bin);
 
   /* Limits of the outer loops. */
   const int first_pi_loop = first_pi;
diff --git a/src/space.c b/src/space.c
index c1dc04ad277e56583ce7cb443a6a865780039d8a..8de790acdf0c6f6efd0ba68ad1b444925ef8cd20 100644
--- a/src/space.c
+++ b/src/space.c
@@ -3198,35 +3198,3 @@ void space_clean(struct space *s) {
   free(s->sparts);
 }
 
-void space_print_cells(const struct space *s) {
-
-  char filename[200];
-  sprintf(filename, "space_%d_%d.dat", s->e->step, engine_rank);
-
-  FILE *file = fopen(filename, "w");
-
-  fprintf(file, "ti_current=%lld\n", s->e->ti_current);
-
-  for (int k = 0; k < s->cdim[2]; ++k) {
-
-    fprintf(file, "\n -- k=%d -- \n\n", k);
-
-    for (int j = 0; j < s->cdim[1]; ++j) {
-
-      for (int i = 0; i < s->cdim[0]; ++i) {
-#ifdef WITH_MPI
-
-        const int cid = cell_getid(s->cdim, i, j, k);
-        const struct cell *c = &s->cells_top[cid];
-        fprintf(file, "|(%d-%ld-%lld-%lld-%d)", c->nodeID, c - s->cells_top,
-                c->ti_hydro_end_min, c->ti_gravity_end_min, c->gcount);
-#endif
-      }
-      fprintf(file, "|\n");
-    }
-  }
-
-  fprintf(file, " -- --- --\n");
-
-  fclose(file);
-}
diff --git a/src/space.h b/src/space.h
index e896cc51767eb0879abf3011107a4236b7d51e2a..c49dc37dc0df27cd3647044f219e36c299dcd73b 100644
--- a/src/space.h
+++ b/src/space.h
@@ -234,6 +234,5 @@ void space_replicate(struct space *s, int replicate, int verbose);
 void space_reset_task_counters(struct space *s);
 void space_clean(struct space *s);
 void space_free_cells(struct space *s);
-void space_print_cells(const struct space *s);
 
 #endif /* SWIFT_SPACE_H */