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- From: Samuel Thibault <samuel.thibault@inria.fr>
- To: Mirko Myllykoski <mirkom@cs.umu.se>
- Cc: Starpu Devel <starpu-devel@lists.gforge.inria.fr>
- Subject: Re: [Starpu-devel] StarPU 1.3 does not purge GPU memory
- Date: Wed, 16 Jan 2019 17:22:44 +0100
- 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
Hello,
Mirko Myllykoski, le mer. 16 janv. 2019 16:04:55 +0100, a ecrit:
> I have noticed that the StarPU 1.3 nightly snapshots have a problem where
> the library does not purge the GPU memory when it is necessary. Instead, the
> ptr field in the interface ends up begin a NULL pointer. The problem can be
> reproduced with the following example code:
Thanks for the reproducer!
It was actually a buffer reuse feature which changed between 1.2 and
1.3, but one spot was missed.
StarPU 1.3 does not seem to be purging GPU memory because it is better
at reusing existing buffers.
Samuel
- [Starpu-devel] StarPU 1.3 does not purge GPU memory, Mirko Myllykoski, 16/01/2019
- Re: [Starpu-devel] StarPU 1.3 does not purge GPU memory, Mirko Myllykoski, 16/01/2019
- Re: [Starpu-devel] StarPU 1.3 does not purge GPU memory, Samuel Thibault, 16/01/2019
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