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- From: Mirko Myllykoski <mirkom@cs.umu.se>
- To: Starpu Devel <starpu-devel@lists.gforge.inria.fr>
- Subject: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4
- Date: Thu, 27 Sep 2018 15:21:01 +0200
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Hi,
I have been struggling with weird performance problems recently. My code supports CUDA devices (asynchronous codelets + performance models) and the performance was earlier reasonably good. However, it appears that something has changed since I performed GPU experiments with my code. I experimented with various StarPU versions and noted that the performance worsens significantly when I move from StarPU 1.2.3 to StarPU 1.2.4. I appears that the performance of StarPU 1.3.xx is similar to StarPU 1.2.4.
Has something significant changed in StarPU 1.2.4?
I have included two FxT traces to this email. The current version of the code uses STARPU_NL_REGRESSION_BASED performance models.
FxT trace for StarPU 1.2.3: https://drive.google.com/file/d/12La4GrPyEwKKlRyaDEQ_0GUNAT85Wb7Z/view?usp=sharing
FxT trace for StarPU 1.2.4:
https://drive.google.com/file/d/1oMTqXb4kYLQifbFSF2w5BU0Ivuz8kzHF/view?usp=sharing
Best Regards,
Mirko Myllykoski
- [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Mirko Myllykoski, 27/09/2018
- Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4, Samuel Thibault, 27/09/2018
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