Hi, I've been using --map-by socket:PE=N, where N is used to control the number of cores a proc gets mapped to. Does this also guarantee that a proc is bound to N cores in the socket? I am asking this because I see some threads spawned by the process run outside the given N cores in the socket.
Is this expected or I guess I am missing some binding parameter here? Also, is there some documentation on these different choices? Are the options in [1] available in current release? [1] http://www.slideshare.net/jsquyres/open-mpi-explorations-in-process-affinity-eurompi13-presentation Thank you, Saliya -- Saliya Ekanayake Ph.D. Candidate | Research Assistant School of Informatics and Computing | Digital Science Center Indiana University, Bloomington Cell 812-391-4914 http://saliya.org