[Mvapich-discuss] using 2.3.5 on ethernet

Lana Deere lana.deere at gmail.com
Thu Feb 11 12:44:53 EST 2021


I tried running a simple command using 2.3.5-1 on my desktop today,
    mpiexec.hyrdra -np 2 program_name
and got errors because there is no recognized HCA.  I thought it would fall
back to using Ethernet or something rather than looking for InfiniBand
(which I don't have).  Is there a way to tell the MPI command to do this?

[twkrh3:mpi_rank_0][mv2_get_hca_type]
**********************WARNING***********************
[twkrh3:mpi_rank_0][mv2_get_hca_type] Failed to automatically detect the
HCA architecture.
[twkrh3:mpi_rank_0][mv2_get_hca_type] This may lead to subpar communication
performance.
[twkrh3:mpi_rank_0][mv2_get_hca_type]
****************************************************
[twkrh3:mpi_rank_0][rdma_open_hca] Unknown HCA type: this build of MVAPICH2
does notfully support the HCA found on the system (try with other build
options)
[cli_0]: aborting job:
Fatal error in MPI_Init:
Other MPI error, error stack:
MPIR_Init_thread(490)............:
MPID_Init(397)...................: channel initialization failed
MPIDI_CH3_Init(445)..............: rdma_get_control_parameters
rdma_get_control_parameters(1913):
rdma_open_hca(930)...............: Failed to open HCA number 0


.. Lana (lana.deere at gmail.com)
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