Heterogeneous MPI Application Interoperation and Process Management under PVMPI

Presently, di erent vendors' MPI implementations cannot interoperate directly with each other. As a result, performance of distributed computing across di erent vendors' machines requires use of a single MPI implementation, such as MPICH. This solution may be sub-optimal since it cannot utilize the vendors' own optimized MPI implementations. PVMPI, a software package currently under development at the University of Tennessee, provides the needed interoperability between di erent vendors' optimized MPI implementations. As the name suggests PVMPI is a powerful combination of the proven and widely ported Parallel Virtual Machine (PVM) system and MPI. PVMPI is transparent to MPI applications thus allowing intercommunication via all the MPI point-to-point calls. Additionally, PVMPI allows exible control over MPI applications by providing access to all the process control and resource control functions available in the PVM virtual machine.