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Comment: Title

About

CactuBSSN was showing a 1-2% degradation in instruction counts with vector enabled.  That has been fixed as of b7b387e1200f on the GCC trunk and we see roughly a 1% dynamic instruction count improvement.

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Beyond fixing the regression, vector is not expected to provide much benefit for CactuBSSN.




Stakeholders/Partners

RISE:

Ventana: Jeff Law


External:



Dependencies


Status

Page Properties


Development

Status
colourGreen
titleCOMPLETE


Development Timeline1H2024
Upstreaming

Status
colourGreen
titleCOMPLETE


Upstream Version

gcc-14

Spring 2024




Contacts

Jeff Law (Ventana)


Dependencies

None




Updates

 

  • Regression has been fixed on the GCC trunk
  • Competitive data shows no significant improvement with vector
  • The 1% reduction in instruction counts we see with vector enabled is not likely to move the needle in any significant way performane-wise
  • Considering this done/closed.

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