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

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