Re: [OMPI users] Multiple windows for the same communicator at thesame time

Hi Abhisek, Both the portals4 and pt2pt OSC components call ompi_comm_dup() near the beginning of component_select(), so each window has it's own communicator. The duplicated communicator has a unique contextid and therefore the window has unique match bits/hash key. Thanks, todd On Mon, Aug 3

Re: [OMPI users] OpenMPI with Portals4 transport

Hi Brian, I'm tracking a two different problems here. The first is that mtl-portals4 is segfaulting in PtlPut(). The second is a btl-portals4 problem you described here: > Not specifying CM gets an earlier segfault (defaults to ob1) and looks to be a progress thread initialization problem. I h