All works fine with latest OpenMPI. Thank you, Amit
From: devel [mailto:devel-boun...@lists.open-mpi.org] On Behalf Of Kumar, Amit Sent: Tuesday, February 21, 2017 8:23 AM To: Open MPI Developers <devel@lists.open-mpi.org> Subject: Re: [OMPI devel] No Preset Parameters found Hi Gilles thank you for your detailed reply and alternate solutions. I will try them out. Howard I am using a very old version: 1.10.1 I also had another issue where we have both mellanox ethernet card and mellanox IB card on a node and the MPI jobs pick the Ethernet interface instead of the IB which is the next in order. I tried --mca btl_tcp_if_exclude lo,eth0 and -mca btl openib,self but still it randomly chose to pick eth0 interface. I am going to install a new version and see if this problem disappears. Thank you, Amit From: devel [mailto:devel-boun...@lists.open-mpi.org] On Behalf Of Gilles Gouaillardet Sent: Monday, February 20, 2017 10:08 PM To: Open MPI Developers <devel@lists.open-mpi.org<mailto:devel@lists.open-mpi.org>> Subject: Re: [OMPI devel] No Preset Parameters found Kumar, that means this device is not know by your Open MPI lib, so i strongly encourage you to upgrade to the latest stable Open MPI 2.0.2 if you will not do that, here is the definition from the .ini file from master [Mellanox ConnectX5] vendor_id = 0x2c9,0x5ad,0x66a,0x8f1,0x1708,0x03ba,0x15b3,0x119f vendor_part_id = 4119 use_eager_rdma = 1 mtu = 4096 max_inline_data = 256 you can try to manually add it to /.../share/openmpi/mca-btl-openib-device-params.ini or add it to an other file and mpirun --mca btl_openib_device_param_files /.../my-openib-device-params.ini ... Cheers, Gilles On 2/21/2017 4:08 AM, Kumar, Amit wrote: Dear OpenMPI, Wondering what preset parameters are this warning is indicating? Thank you, Amit WARNING: No preset parameters were found for the device that Open MPI detected: Local host: n001 Device name: mlx5_0 Device vendor ID: 0x02c9 Device vendor part ID: 4119 Default device parameters will be used, which may result in lower performance. You can edit any of the files specified by the btl_openib_device_param_files MCA parameter to set values for your device. NOTE: You can turn off this warning by setting the MCA parameter btl_openib_warn_no_device_params_found to 0. _______________________________________________ devel mailing list devel@lists.open-mpi.org<mailto:devel@lists.open-mpi.org> https://rfd.newmexicoconsortium.org/mailman/listinfo/devel
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