Re: [OMPI users] Question about collective messages implementation

Ashley Pittman pittman.co.uk> writes: > MPI_Comm_split() is an expensive operation, sure the manual says it's low cost but it shouldn't be used > inside any critical loops so be sure you are doing the Comm_Split() at startup and then re-using it as and > when needed. > > Any blocking call into O

[OMPI users] Question about collective messages implementation

assign a policy (in this case, a shared memory policy) to a Bcast or a Barrier call? - do you have any better idea for this problem? :) Regards, -- Jerome Reybert