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- From: Maxim Abalenkov <maxim.abalenkov@gmail.com>
- To: starpu-devel@lists.gforge.inria.fr
- Subject: [Starpu-devel] [low performance of LU factorisation]
- Date: Fri, 7 Sep 2018 16:07:08 +0100
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Dear Samuel et al.,
I am experiencing a relatively low performance of the LU factorisation (implemented with StarPU). Please find below the links to performance traces:
https://tinyurl.com/ycta2sxq // 16x16 matrix with 4x4 tiles on 4 threads
https://tinyurl.com/yd9ov9lx // DAG
https://tinyurl.com/yc8vechd // 10000x10000 with 448x448 tiles on 4 threads
https://tinyurl.com/y74gnvtt // log of executions with “sleeping” times
I am worried about the long “sleeping/waiting” times before and after the LU execution. Is that normal? The test is run on a 4 core desktop computer with multithreading, but uses 4 threads only. Thank you!
—
Best wishes,
Maxim
- [Starpu-devel] [low performance of LU factorisation], Maxim Abalenkov, 07/09/2018
- Re: [Starpu-devel] [low performance of LU factorisation], Samuel Thibault, 12/09/2018
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