24-28 August 2020
US/Pacific timezone

BoF: Speed vs accuracy for math library optimization

27 Aug 2020, 07:30
GNU Tools track/Virtual-Room (LPC 2020)

GNU Tools track/Virtual-Room

LPC 2020

GNU Tools Track GNU Tools Track


Patrick McGehearty (Oracle)


Math library developers sometimes can trade slight loss of accuracy
for significant performance gains or slight loss of performance
for significant accuracy gains. This BoF is to review some recent
and coming libm/libgcc changes and share ideas on how to decide
where to draw the line for loss of performance vs improved accuracy
and vice-versa.

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