Heterogeneous MPI application interoperation and process management under PVMPI

Abstract. 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 ofTennessee, 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.