[Starpu-devel] StarPU can_execute problem

[Usman Dastgeer <usman.dastgeer@liu.se>]

I am getting issues with can_execute + multiple implementations (conditional implementation selection) with StarPU. The recent issue is that the execution stops when you have:

* multiple implementations + can_execute hook to make conditional selection AND

* no implementation is eligible for a specific task execution

The desired response is I guess an error that "no suitable worker is found etc." but the execution hangs…

I am using default scheduling policy…

With dmda scheduler, it gives assertion failure "sched_policies/deque_modeling_policy_data_aware.c:521: _dmda_push_task: Assertion `forced_best != -1 || best != -1' failed."

Attached is a simple program showing this problem…

Attachment: generate_.cu
Description: Binary data