Salvatore, Please see my comment inline.
> > More generally, in the case of a front-end nodes with a processors > definitively different from > worker nodes (same firm i.e.Intel) can openMPI applications compiled on one > run correctly > on the others? It is possible to come up with a set of gcc flags that generate a "generic" binary for both systems. The problem is that the generic code would not be optimal for backend nodes. As a result it may effect on applications performance. We had a similar setup issues on our platform as well. As a work around, we compiled two version of the code and merged them to single install directory. Regards, Pasha
