Re: [OMPI devel] failure with zero-length Reduce() and bothsbuf=rbuf=NULL

2010-02-10 Thread Lisandro Dalcín
On 10 February 2010 09:31, Jeff Squyres wrote: > Thanks for the reminder. > > Note that from a standards perspective, note that MPI_REDUCE *does* require > at least one element -- MPI-2.2 p163:34-35: > >   "Each process can provide one element, or a sequence of elements..." > Are you really conv

Re: [OMPI devel] failure with zero-length Reduce() and bothsbuf=rbuf=NULL

2010-02-10 Thread Jeff Squyres
Thanks for the reminder. Note that from a standards perspective, note that MPI_REDUCE *does* require at least one element -- MPI-2.2 p163:34-35: "Each process can provide one element, or a sequence of elements..." So I think that George's assertion is correct: your test code is incorrect. B