bugGNU Scientific Library - Bugs: bug #54925, Reduce cache misses for...

 
 

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bug #54925: Reduce cache misses for source_gemm_r

Submitted by:  Patrick Alken <psa>
Submitted on:  Wed 31 Oct 2018 01:57:19 PM UTC  
 
Category:  Performance Severity:  3 - Normal
Operating System:  Status:  None
Assigned to:  None Open/Closed:  Open
Release: 

Wed 31 Oct 2018 01:57:19 PM UTC, original submission:

From max =dot= bruce12 =at= gmail =dot= com

Hey guys,

I noticed that your matrix multiplication code had bad cache
performance due to a misordering of a loop. In a replicated version of
my change, I saw about 20% performance gains on my AMD FX CPU.

-Max

Patrick Alken <psa>
Project Administrator

 

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Depends on the following items: None found

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-10-31 psa Attached File- => Added 0001-Reduce-cache-misses-for-source_gemm_r.patch, #45339

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