MPI_SPAWN

Suresh Damodaran-Kamal (suresh@lanl.gov)
Fri, 20 Oct 1995 15:03:59 -0600

The new dynamic spawn document does away with interfaces to
resource managers altogether. However, the document
says that "complex interaction of an MPI application with its runtime
environment should be done through an environment specific API."

The following is a sample scenario:

Assume that the runtime environment is PVM.
Then, it appears to me that somehow MPI_SPAWN() must result in a call to
pvm_spawn(). Otherwise, how will the PVM runtime know about
the status of resources and processes running under it?

Does this mean there will be different versions of MPI_SPAWN() for
different runtimes (operating systems + PVM + ...)?

-Suresh