Hi,

I am tried to run an MPI program in a heterogeneous environment using the pml cm component. However, open mpi returned with an error message indicating that PML add procs returned "Not supported". I dived into the cm code to see what was wrong and I came upon the code below, which basically shows that if the processes are running on different architectures, then return "not supported". Now, I'm wondering whether my interpretation is correct or not. Is it true that the cm component does not support a heterogeneous environment? If so, will the developers support this in the future? How could I get around this while still using the cm component? What will happen if I rebuilt openmpi without these statements?

I would appreciate your help.

 Code:

mca_pml_cm_add_procs(....){

#if OMPI_ENABLE_HETEROGENEOUS_SUPPORT
107     for (i = 0 ; i < nprocs ; ++i) {
108         if (procs[i]->proc_arch != ompi_proc_local()->proc_arch) {
109             return OMPI_ERR_NOT_SUPPORTED;
110         }
111     }
112 #endif
.
.
.
}

Sajjad Tabib