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vine: scale task priority multiplicatively #4263

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vine: scale task priority multiplicatively #4263

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7 changes: 3 additions & 4 deletions taskvine/src/manager/vine_manager.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4668,14 +4668,13 @@ static void push_task_to_ready_tasks(struct vine_manager *q, struct vine_task *t
{
if (t->result == VINE_RESULT_RESOURCE_EXHAUSTION) {
/* when a task is resubmitted given resource exhaustion, we
* increment its priority by 1, so it gets to run as soon
* increment its priority a bit, so it gets to run as soon
* as possible among those with the same priority. This avoids
* the issue in which all 'big' tasks fail because the first
* allocation is too small. */
priority_queue_push(q->ready_tasks, t, t->priority + 1);
} else {
priority_queue_push(q->ready_tasks, t, t->priority);
t->priority *= 1.05;
}
priority_queue_push(q->ready_tasks, t, t->priority);

/* If the task has been used before, clear out accumulated state. */
vine_task_clean(t);
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