Re: Reduction operations

(no name) (Andrew.Lumsdaine@nd.edu)
Wed, 1 May 1996 08:29:42 -0500 (EST)

In our last exciting episode Steve Huss-Lederman wrote:

> I believe the concern is that we not define what the MPI_MAX/MIN of a
> complex variable be. We removed this in the 1.1 spec (June 12, 1995,
> p. 116, line 23). The statement at the meeting (maybe the one I said)
> may have been too general for what I was really concerned about.

Right. Since, in the abstract, complex numbers cannot be ordered, it
is erroneous to define max/min of them. Thus, we just have to specify
how complex numbers are handled in reductions. My previous reference
to page 115 is the one you indicate here, I believe (for some reason,
the copy of the June 12 doc I have does not seem to be paginated
correctly).

Are we saying the same thing?

Regards,
Andrew Lumsdaine