From: Luc.Vereecken@chem.kuleuven.ac.be (Luc Vereecken)
Newsgroups: comp.parallel.mpi
Subject: Re: Lack of Performance under WINNT 4.0
Date: Wed, 11 Nov 1998 16:47:06 GMT
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On Tue, 10 Nov 1998 17:37:02 +0000, "Martin F. Schuster"
<schuster@lhm.mw.tu-muenchen.de> wrote:


>- I detected the folowwing bug: Under certain conditions the rang order
>on
>    a remote machine does not necesserily follow the order of the .pg
>file.
>    It seemd that processes, requireing less storage resources where
>favoured
>    and were assigend a lower rank number -that was really strange and
>    is of course fatal in my case

That is not a bug. There is absolutely no guarantee concerning the
rang numbers. All you know is that each process will be given a unique
ID at startup. If that is fatal in your program, you probably will
need to adapt it a bit, because the rank numbers are likely to depend
mainly on startup sequence and initialisation time, not the order of
the .pg file. 

Luc