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- From: Mirko Myllykoski <mirkom@cs.umu.se>
- To: samuel.thibault@inria.fr
- Cc: Starpu Devel <starpu-devel@lists.gforge.inria.fr>
- Subject: Re: [Starpu-devel] Performance decline from StarPU 1.2.3 to 1.2.4
- Date: Thu, 27 Sep 2018 18:07:30 +0200
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Hi,
I bisected the 1.2 branch and got the following result:
ac1e432d45ef13f935f6f0b74088f93a332ce449 is the first bad commit
commit ac1e432d45ef13f935f6f0b74088f93a332ce449
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun Mar 25 00:07:17 2018 +0100
Drop detecting cudaMemcpyPeer
it seems CUDA 9.0 changed the symbol appearance, just assume it is there by default
(cherry picked from commit d1dd61f61d57dedf04bbcd1fe9d9f92e70003dd0)
:100644 100644 8f7c38d8858d9cf8f57695d44b975eca99ae5e47 18f4ecfa65e59a0470216d6661557fa18ae72d8a M configure.ac
- Mirko
On 2018-09-27 17:16, Samuel Thibault wrote:
Mirko Myllykoski, le jeu. 27 sept. 2018 16:18:26 +0200, a ecrit:
I modified StarPU 1.2.4 such that CHUNKS_NFREE was set to 1. No change.
Ok, so I don't have any other immediate idea, git-bisecting the 1.2
branch would probably give us an idea where to look at.
It also looks like StarPU 1.2.4 is struggling to calibrate the performance
models.
That's probably just a consequence of the issue.
Samuel
- [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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