https://community.intel.com/t5/Intel-MPI-Library/Two-Infiniband-networks/m-p/822670#M1195 Hi!<BR /><BR />Yes, it is possible with multirail. <BR /><BR />Release Notes:<BR />"Native InfiniBand* interface (OFED* verbs) support with multirail capability for ultimate InfiniBand* performance<BR />- Set I_MPI_FABRICS=ofa for OFED* verbs only<BR />- Set I_MPI_FABRICS=shm:ofa for shared memory and OFED* verbs<BR />- Set I_MPI_OFA_NUM_ADAPTERS, etc., for multirail transfers"<BR /><BR />Please take a look atI_MPI_OFA_NUM_ADAPTERS andI_MPI_OFA_NUM_PORTS also.<BR /><BR />--<BR />Dmitry Sivkov Fri, 27 Jan 2012 07:47:07 GMT Dmitry_S_Intel 2012-01-27T07:47:07Z https://community.intel.com/t5/Intel-MPI-Library/Two-Infiniband-networks/m-p/822669#M1194 Hello all!<DIV></DIV><DIV>I have a SGI cluster with two separated infiniband networks. I want to use both networks for MPI comunications, how do I configure the Intel MPI this way?<BR />There's anything to do with the "Set I_MPI_DEVICE<I>=<DEVICE></DEVICE></I>:<I><PROVIDER>"</PROVIDER></I>command?</DIV><DIV></DIV><DIV>Thank you for your attention.</DIV><DIV>Best regards.</DIV> Thu, 26 Jan 2012 20:41:03 GMT https://community.intel.com/t5/Intel-MPI-Library/Two-Infiniband-networks/m-p/822669#M1194 Adalberto_Fazzio 2012-01-26T20:41:03Z https://community.intel.com/t5/Intel-MPI-Library/Two-Infiniband-networks/m-p/822670#M1195 Hi!<BR /><BR />Yes, it is possible with multirail. <BR /><BR />Release Notes:<BR />"Native InfiniBand* interface (OFED* verbs) support with multirail capability for ultimate InfiniBand* performance<BR />- Set I_MPI_FABRICS=ofa for OFED* verbs only<BR />- Set I_MPI_FABRICS=shm:ofa for shared memory and OFED* verbs<BR />- Set I_MPI_OFA_NUM_ADAPTERS, etc., for multirail transfers"<BR /><BR />Please take a look atI_MPI_OFA_NUM_ADAPTERS andI_MPI_OFA_NUM_PORTS also.<BR /><BR />--<BR />Dmitry Sivkov Fri, 27 Jan 2012 07:47:07 GMT https://community.intel.com/t5/Intel-MPI-Library/Two-Infiniband-networks/m-p/822670#M1195 Dmitry_S_Intel 2012-01-27T07:47:07Z https://community.intel.com/t5/Intel-MPI-Library/Two-Infiniband-networks/m-p/822671#M1196 Hi Dmitry, thank you for your quick response!<DIV></DIV><DIV>Your advice will be very helpful, I'll take a look at those options in the manual to be sure of what I'm doing :)</DIV><DIV></DIV><DIV>Thank you again!</DIV> Fri, 27 Jan 2012 11:48:56 GMT https://community.intel.com/t5/Intel-MPI-Library/Two-Infiniband-networks/m-p/822671#M1196 Adalberto_Fazzio 2012-01-27T11:48:56Z