Objet : Developers list for StarPU
Archives de la liste
Re: [Starpu-devel] Bug report: STARPU_SPMD does not handle buffers without explicit backing memory
Chronologique Discussions
- From: Samuel Thibault <samuel.thibault@inria.fr>
- To: Jan Polák <456647@mail.muni.cz>
- Cc: starpu-devel@lists.gforge.inria.fr
- Subject: Re: [Starpu-devel] Bug report: STARPU_SPMD does not handle buffers without explicit backing memory
- Date: Fri, 30 Aug 2019 17:30:48 +0200
- List-archive: <http://lists.gforge.inria.fr/pipermail/starpu-devel/>
- List-id: "Developers list. For discussion of new features, code changes, etc." <starpu-devel.lists.gforge.inria.fr>
- Organization: I am not organized
Jan Polák, le jeu. 29 août 2019 12:19:09 +0200, a ecrit:
> The gist of the problem is that any buffers without explicit backing memory
> (home node -1, null backing memory) are not passed through to the codelet
> functions when running on combined workers through STARPU_SPMD.
Mmm, right, only rank 0 will have triggered/waited for
transfer/allocation and thus get the pointers.
> (And maybe STARPU_FORKJOIN as well,
Probably not since rank 0 in that case will have everything.
We'll need to make other ranks wait for the transfer/allocation before
filling the buffer and proceeding.
Samuel
- [Starpu-devel] Bug report: STARPU_SPMD does not handle buffers without explicit backing memory, Jan Polák, 29/08/2019
- Re: [Starpu-devel] Bug report: STARPU_SPMD does not handle buffers without explicit backing memory, Samuel Thibault, 30/08/2019
Archives gérées par MHonArc 2.6.19+.