vine: print warning if task larger than available disk - cache of all workers (#4385)

Author: btovar

taskvine/src/manager/vine_schedule.c

@@ -507,6 +507,9 @@ static vine_resource_bitmask_t is_task_larger_than_worker(struct vine_manager *q
 
 	if ((double)w->resources->disk.total < l->disk) {
 		set = set | DISK_BIT;
+	} else if ((double)w->resources->disk.total - w->resources.disk.inuse && hash_table_size(w->current_tasks) < 1) {
+		/* also trigger disk if worker's cache does not allow to run any task anymore */
+		set = set | DISK_BIT;
 	}
 
 	if ((double)w->resources->gpus.total < l->gpus) {
@@ -603,7 +606,7 @@ void vine_schedule_check_for_large_tasks(struct vine_manager *q)
 	}
 
 	if (unfit_disk) {
-		notice(D_VINE, "    %d waiting task(s) need more than %s of disk", unfit_disk, rmsummary_resource_to_str("disk", largest_unfit_task->disk, 1));
+		notice(D_VINE, "    %d waiting task(s) need more than %s of disk (workers' disk cache may be full)", unfit_disk, rmsummary_resource_to_str("disk", largest_unfit_task->disk, 1));
 	}
 
 	if (unfit_gpu) {