Native mpi

[Masrul]

I would like to clear  confusion regarding native mpi paradigm in intel xeon phi. Is it possible to use mpi to create two tasks in two separate node xeon phi  natively ? That means, i want to use two coprocessors  as two independent separate nodes without any association of hosts

[Sunny_G_Intel]

Hi Masrul,

In order for two coprocessors to communicate, the coprocessors must be configured in either internal or external bridging. In static bridging, only the host can communicate with the coprocessors. If you would like to read more about the different network topologies for Intel Xeon Phi Coprocessors please refer to the following document.

Intel Xeon Phi Coprocessors System Admin Guide.

Thanks

[Masrul]

Sunny thanks, I am not an admin of cluster system, so topology may not help me. So in general, we can assume that, native programming model only for single node? In cluster of nodes, we then need to use  host side inter nodes communication and offloading the works from each host to its phi ?

Regards

Masrul