From 2abc9ff9643480bd82ed93b7f30ef5ec4223b49b Mon Sep 17 00:00:00 2001
From: Pedro Gonnet <gonnet@google.com>
Date: Tue, 27 Jun 2017 23:36:41 +0200
Subject: [PATCH] only need to explicitly activate drifts on cell being sent.
---
src/engine.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/engine.c b/src/engine.c
index 36de23c815..2c99559bb7 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -2625,9 +2625,9 @@ void engine_marktasks_mapper(void *map_data, int num_elements,
if (l == NULL) error("Missing link to send_xv task.");
scheduler_activate(s, l->t);
- /* Drift both cells, the foreign one at the level which it is sent. */
+ /* Drift the cell which will be sent at the level at which it is sent,
+ i.e. drift the cell specified in the send task (l->t) itself. */
cell_activate_drift_part(l->t->ci, s);
- if (t->type == task_type_pair) cell_activate_drift_part(cj, s);
if (cell_is_active(cj, e)) {
for (l = cj->send_rho; l != NULL && l->t->cj->nodeID != ci->nodeID;
@@ -2671,9 +2671,9 @@ void engine_marktasks_mapper(void *map_data, int num_elements,
if (l == NULL) error("Missing link to send_xv task.");
scheduler_activate(s, l->t);
- /* Drift both cells, the foreign one at the level which it is sent. */
+ /* Drift the cell which will be sent at the level at which it is sent,
+ i.e. drift the cell specified in the send task (l->t) itself. */
cell_activate_drift_part(l->t->ci, s);
- if (t->type == task_type_pair) cell_activate_drift_part(ci, s);
if (cell_is_active(ci, e)) {
for (l = ci->send_rho; l != NULL && l->t->cj->nodeID != cj->nodeID;
--
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