From ae845b3753c018409202f14833b1e82b4b71108d Mon Sep 17 00:00:00 2001
From: "Peter W. Draper" <p.w.draper@durham.ac.uk>
Date: Fri, 1 May 2020 17:53:04 +0100
Subject: [PATCH] Output a report about tasks that use more than 5% of the
runtime in a step
---
src/task.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/task.c b/src/task.c
index 70741af01b..81e386a107 100644
--- a/src/task.c
+++ b/src/task.c
@@ -1125,6 +1125,7 @@ void task_dump_stats(const char *dumpfile, struct engine *e, int header,
}
}
+ double stepdt = (double)e->toc_step - (double)e->tic_step;
double total[1] = {0.0};
for (int l = 0; l < e->sched.nr_tasks; l++) {
int type = e->sched.tasks[l].type;
@@ -1152,6 +1153,12 @@ void task_dump_stats(const char *dumpfile, struct engine *e, int header,
tmax[type][subtype] = tic;
}
total[0] += dt;
+
+ /* Check if this is a problematic task and make a report. */
+ if (e->verbose)
+ if (dt / stepdt > 0.05)
+ message("Long running task detected: %s/%s using %.1f%% of step runtime", taskID_names[type],
+ subtaskID_names[subtype], dt / stepdt * 100.0);
}
}
--
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