| Re: [eigen] SSE square root |
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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] SSE square root
- From: Rohit Garg <rpg.314@xxxxxxxxx>
- Date: Fri, 27 Mar 2009 18:09:14 +0530
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> hm, sorry that's not entirely true. I increased the number of samples,
> and for the fastest version:
>
> 1 iter = 42% of failures with max error = 2.78308e-07
> 2 iter = 36% of failures with max error = 2.15188e-07
> 3 iter = 34% of failures with max error = 1.87297e-07
Failure? Do you mean that the error blows up for these values? But the
max error is pretty low. At any rate, the increased precision is too
low to iterate again compared to the perf hit, IMHO.
--
Rohit Garg
http://rpg-314.blogspot.com/
Senior Undergraduate
Department of Physics
Indian Institute of Technology
Bombay