[Starpu-devel] Lifetime needed for a starpu_data_handle_t

[Jean-Marie Couteyen <jean-marie.couteyen@inria.fr>]

Hello,

I was wondering what was the lifetime needed for a 
starpu_data_handle_t.  Must it be valid until all the task using it are 
finished or just until starpu_data_unregister_submit ?

In other word, is this kind of code valid :
"""
void function_inserting_tasks(double * tmp)
{
  starpu_data_handle_t tmp_h;
  starpu_variable_data_register(&tmp_h, 0, (uintptr_t)tmp, sizeof(double));
  // Insert tasks using tmp_h.
  starpu_data_unregister_submit(tmp_h);
}
"""
?

Because only registration functions take a pointer to a 
starpu_data_handle_t and other functions (task submission, 
unregistration,...) take directly the starpu_data_handle_t, I suspect 
the second hypothesis to be good, but I want to be sure... :)

Regards,

Jean-Marie