From a6aef317f14eaf320c7bbca10c7fd5bc0ce734da Mon Sep 17 00:00:00 2001
From: Matthieu Schaller <matthieu.schaller@durham.ac.uk>
Date: Fri, 5 Jan 2018 14:05:40 +0000
Subject: [PATCH] Align the runner structures on a memory bound.
---
src/engine.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/engine.c b/src/engine.c
index ee41d03cef..42532fc67e 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -5450,8 +5450,8 @@ void engine_init(struct engine *e, struct space *s,
parser_get_opt_param_int(params, "Scheduler:mpi_message_limit", 4) * 1024;
/* Allocate and init the threads. */
- if ((e->runners = (struct runner *)malloc(sizeof(struct runner) *
- e->nr_threads)) == NULL)
+ if (posix_memalign((void *)&e->runners, SWIFT_STRUCT_ALIGNMENT,
+ e->nr_threads * sizeof(struct runner)) != 0)
error("Failed to allocate threads array.");
for (int k = 0; k < e->nr_threads; k++) {
e->runners[k].id = k;
--
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