[Beowulf] How to know if infiniband network works?
joe.landman at gmail.com
Wed Aug 2 11:37:00 PDT 2017
On 08/02/2017 01:50 PM, Faraz Hussain wrote:
> Thanks Joe. Here is the output from the commands you suggested. We
> have open mpi built from Intel mpi compiler. Is there some benchmark
> code I can compile so that we are all comparing the same code?
> [hussaif1 at lustwzb4 test]$ ibv_devinfo
> hca_id: mlx4_0
> transport: InfiniBand (0)
> fw_ver: 2.11.550
> node_guid: f452:1403:0016:3b70
> sys_image_guid: f452:1403:0016:3b73
> vendor_id: 0x02c9
> vendor_part_id: 4099
> hw_ver: 0x0
> board_id: DEL0A40000028
> phys_port_cnt: 2
> port: 1
> state: PORT_ACTIVE (4)
Port 1 on the machine is up. This is the link level activity that the
subnet manager (OpenSM or a switch level version) enables.
For OpenMPI, my recollection is that they expect the IB ports to have
ethernet addresses as well (and will switch to RDMA after initialization).
e: joe.landman at gmail.com
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