Re: [Starpu-devel] Link a Tag to a task using starpu_insert_task()

[Samuel Thibault <samuel.thibault@ens-lyon.org>]

Hello,

mansouri farouk, le Tue 10 Feb 2015 15:54:39 +0100, a écrit :
> [starpu][starpu_mpi_insert_task][assert failure] STARPU_TAG is not supported
> in MPI mode

Yes, we haven't implemented it yet. It shouldn't be very hard to
implement it, it's a matter of defining the semantic it is supposed to
have and not have (no tag dependency between different MPI nodes, at
least for now).

> Can someone tell me if it is possible to use Tag dependecy over Starpu_MPI ?
> If not how can i do that otherwise ?

With StarPU 1.2, you can modify the task after creating it with
StarPU-MPI: call starpu_mpi_task_build, then you can modify it before
submitting it, and calling starpu_mpi_task_post_build to finish. See the
insert_task_compute.c testcase.

Samuel