[Users] bug in Dissipation thorn?

Frank Loeffler knarf at cct.lsu.edu
Wed Mar 6 12:34:42 CST 2013


Hi,

On Wed, Mar 06, 2013 at 06:45:17PM +0100, Kentaro Takami wrote:
> http://software.intel.com/sites/default/files/article/164389/fp-consistency-102511.pdf
> say that the performance is reduced by 12-15%.

I would be careful with using such numbers. I would expect this to
depend quite heavily on your specific application. (For these numbers
Intel used the Speccpu2006fp benchmark.) I wonder what the impact on one
of our typical simulations is.

In the end it's a trade-off between accuracy and speed.

Frank

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