<html><P><BR>----- "peter raeth" <<A class=m1 onclick="top.checkNewBrowser('26?To=peter_raeth@juno.com&count=1245411495')" href="http://webmaila.juno.com/webmail/new/5?userinfo=36b71427f3aedc2040d44abea4ec3c50&count=1245411373#">peter_raeth@juno.com</A>> wrote:<BR><BR>> Tried mpicxx with a program that does not use MPI and that program<BR>> runs fine. If I take the MPI cpi executable from the Fedora 9<BR>> installation, that executable runs fine under Fedora 10. That file was<BR>> built using mpicxx. If I build that same source using mpicxx under<BR>> Fedora 10, the program builds fine but will not execute. It fails upon<BR>> trying to run MPI_Init with an illegal instruction error.<BR><BR>"Illegal instruction" could be caused by incompatible binary, e.g. linking<BR>32bit object file with 64bit MPICH2 libraries or running a 64bit binary on<BR>a 32bit machine.<BR></P>
<P>Thoughts like that have come to my mind too. But, this problem occurs even with a fresh MPICH2 build on Fedora 10. Is it possible for a 64-bit Fedora 10 to run on a 32-bit machine? Someone earlier said that MPICH2 binaries are included with Fedora 10. Could there be some interference with that? Will go back to be sure I have a 32-bit Fedora 10 and then check that for MPICH2 binaries before doing a fresh MPICH2 install.</P>
<P>Thanks,</P>
<P>Peter.</P></html>