(j3.2006) F03/0084, was Re: Interp letter ballot #25

Dan Nagle dannagle
Fri May 11 18:56:34 EDT 2012


On May 11, 2012, at 14:48 , Bill Long wrote:
> When you get to GPU-land, you end up returning  .false. for many of the "ieee_support..." inquiries in Clause 14.  Particularly, IEEE_SUPPORT_HALTING which is the one most people are interested in. (Among the small fraction of users who use any feature in Clause 14.)

Most applications I've seen are coded for a combination of host
and device.  Exactly what IEEE modes mean in a heterogeneous environment
is unclear to me.  I suspect that a great deal of work is required
to make the contrary plainly appear.  Indeed, in an environment
supporting asynchronous execution, the precise meaning of an exception
is likewise unclear (at least to me).  Perhaps the issue can be resolved,
but portably?


Dan Nagle

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