<html><P><BR>> The two machines are not connected. They are stand-alone, set up that <BR>> way to work on this issue. Both have Fedora 10. One used the build <BR>> instructions in the MPICH2 installer guide. The other used the rpm. Both <BR>> yield the same issue, invalid instruction when MPI_Init tries to <BR>> execute. Something is wrong with code building, as compared to the same <BR>> build process used under Fedora 9.<BR><BR>This is very weird. Can you try to use the compiler separately? The <BR>following command will give you the internal compile options mpicc is using:<BR><BR> shell$ mpicc -show<BR><BR>Can you send us the output for this, and also make sure the correct <BR>compiler is being used, the compiler works fine (by trying out some <BR>simple program), etc.?<BR><BR> -- Pavan<BR><BR>Attached are five files. RPM files are from the Fedora 10 mpich2 rpm install. source files are from the Fedora 10 mpich2 source install as described in the installer's guide. The fedora9 file is from the Fedora 9 mpich2 source install (the version at that time, not the one currently posted).</P>
<P>Tried mpicxx with a program that does not use MPI and that program runs fine. If I take the MPI cpi executable from the Fedora 9 installation, that executable runs fine under Fedora 10. That file was built using mpicxx. If I build that same source using mpicxx under Fedora 10, the program builds fine but will not execute. It fails upon trying to run MPI_Init with an illegal instruction error.</P>
<P>Something I want to try is the Fedora 9 mpicxx resulting command line (from -show) in Fedora 10 since that line is different from the one Fedora 10 is using.</P>
<P>Thank you Pavan for looking into this.</P>
<P>Best,</P>
<P>Peter.</P>
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