Hello OpenMPI,

we have deployed OpenMPI 1.4.1 and 1.4.2 on our Intel Nehalem cluster using Intel compilers V 11.1.059 and 11.1.072 respectively, and one user has the following request:

Can we build OpenMPI version say O.1 against Intel compilers version say I.1 but  then built an application with OpenMPI O.1 BUT then use a DIFFERENT Intel compiler version say I.2 to built and run this MPI application?

I suggested to him to 1) simply try to built and run the application with O.1 but use Intel compilers version I.X whatever this X is and see if it has any issues.

OR 2) If the above does not work, I would build OpenMPI O.1 against Intel version I.X so he can use THIS combination for his hypothetical application.

He insists that I build OpenMPI O.1 with some version of Intel compilers I.Y but then at run time he would like to use different Intel run time libs at will I.Z <> I.X.

Can you provide me with a suggestion for a sane solution to this ? :-)

Best regards

Michael