On Dec 8, 2010, at 10:59 AM, 侯杰 wrote: > Now I am studying the openib component, and I find it is really complicated. > Here I have one question to ask, it is as follows: > > In the initialization of openib component, the function named setup_qps() is > used. In this function, the following code segments are written: > mca_btl_openib_component.num_pp_qps = num_pp_qps; > mca_btl_openib_component.num_srq_qps = num_srq_qps; > mca_btl_openib_component.num_xrc_qps = num_xrc_qps; > mca_btl_openib_component.num_qps = num_pp_qps + num_srq_qps + num_xrc_qps; > if you run the program in the step way, you will find that at last the value > of mca_btl_openib_component.num_qps is 4( the value of num_pp_qps is 1, and > the value of num_srq_qps is 3). Can someone explain me why 4 QPs(1 > normal QP, 3 SRQ QPs) need to be created?
Have a look at this paper: http://www.open-mpi.org/papers/euro-pvmmpi-2007-ib/ -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/