You can use the ib_write_bw instead ,this newer test has more options. Test generally cant "guess" automatically the right port, what would you like to use as defaults if both ports are up ? If you have more than 1 card ? Etc ... So for the single case of cable connected only to port 2 u can use the flag Dotan suggested.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dotan Barak Sent: Thursday, January 17, 2008 5:56 PM To: Bart Van Assche Cc: Openib-General Subject: Re: [ofa-general] MT25204 versus MT25208 Bart Van Assche wrote: > On Jan 17, 2008 4:38 PM, Dotan Barak <[EMAIL PROTECTED]> wrote: > >> Bart Van Assche wrote: >> >>> Four hosts are connected through an InfiniBand network, two with a >>> MT25204 HCA and two with a MT25208 HCA. All four hosts communicate >>> fine via IPoIB, and iperf shows the expected results. Until now I >>> only succeeded to run ib_rdma_bw between the MT25204 interfaces. >>> When I run ib_rdma_bw on one of the MT25208 interfaces a strange >>> error message is printed. Any idea how I can fix this ? >>> >>> MT25208 to MT25204: >>> [EMAIL PROTECTED]:~# ib_rdma_bw >>> 6468: | port=18515 | ib_port=1 | size=65536 | tx_depth=100 | >>> iters=1000 | duplex=0 | cma=0 | server read: Success >>> 6468:pp_server_exch_dest: 0/45 Couldn't read remote address >>> [EMAIL PROTECTED]:~# ib_rdma_bw 192.168.102.5 >>> 6466: | port=18515 | ib_port=1 | size=65536 | tx_depth=100 | >>> iters=1000 | duplex=0 | cma=0 | >>> 6466:main: Local lid 0x0 detected. Is an SM running? >>> >>> >> What is the output of ibv_devinfo in both of those devices? >> >> (maybe you need to specify the IB port value or the device name?) >> > > Thanks, after specifying -i 2 as an argument to ib_rdma_bw the test > runs fine. Happy to hear this ... > Would it be possible to let the ib_rdma_bw program determine this > parameter automatically ? In my setup the InfiniBand cable is > connected to the second port of the MT25208 interfaces. > I think that for every IB application/test one should specify the exact device name + IB port. (this is what I'm doing in our nightly regression) I'm not the maintainer of the test, but do you suggest that this benchmark will work on the first IB port which is in ACTIVE state? thanks Dotan _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
