(j3.2006) IEEE and the GPU world

Bill Long longb
Mon Aug 30 07:41:01 EDT 2010



Malcolm Cohen wrote:

> As for IEEE_ARITHMETIC, this being accessible (and nothing else being 
> accessible) implies very little - just support for IEEE_OVERFLOW and 
> IEEE_DIVIDE_BY_ZERO.  That in turn only mandates detection of overflow or 
> zero-divide, not whether you can do cute things with them.
> 

But this "very little" is the core of the issue.  GPU's, as a general 
rule any by nature of their design, do not support ANY fp exceptions. 
This has been the whole point of the discussion from the start.

Cheers,
Bill




-- 
Bill Long                                           longb at cray.com
Fortran Technical Support    &                 voice: 651-605-9024
Bioinformatics Software Development            fax:   651-605-9142
Cray Inc./Cray Plaza, Suite 210/380 Jackson St./St. Paul, MN 55101





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