Extended Device Control Options 

-rdma 

Use this option to select an RDMA-capable network fabric. The application attempts to use the first available RDMA-capable network fabric from the list dapl or ofa. If no such fabric is available, other fabrics from the list tcp or tmi are used. This option is equivalent to the ‑genv I_MPI_FABRICS_LIST dapl,ofa,tcp,tmi -genv I_MPI_FALLBACK 1 setting. 

-RDMA 

Use this option to select an RDMA-capable network fabric. The application attempts to use the first available RDMA-capable network fabric from the list dapl or ofa. The application fails if no such fabric is found. This option is equivalent to the -genv I_MPI_FABRICS_LIST dapl,ofa -genv I_MPI_FALLBACK 1 setting. 

-dapl 

Use this option to select a DAPL capable network fabric. The application attempts to use a DAPL capable network fabric. If no such fabric is available, another fabric from the list tcp,tmi or ofa is used. This option is equivalent to the -genv I_MPI_FABRICS_LIST dapl,tcp,tmi,ofa -genv I_MPI_FALLBACK 1 setting. 

-DAPL 

Use this option to select a DAPL capable network fabric. The application fails if no such fabric is found. This option is equivalent to the -genv I_MPI_FABRICS_LIST dapl -genv I_MPI_FALLBACK 0 setting. 

-ib 

Use this option to select an OFA capable network fabric. The application attempts to use an OFA capable network fabric. If no such fabric is available, another fabrics from the list dapl,tcp or tmi is used. This option is equivalent to the -genv I_MPI_FABRICS_LIST ofa,dapl,tcp,tmi -genv I_MPI_FALLBACK 1 setting. 

-IB 

Use this option to select an OFA capable network fabric. The application fails if no such fabric is found. This option is equivalent to the -genv I_MPI_FABRICS_LIST ofa -genv I_MPI_FALLBACK 0 setting. 

-tmi 

Use this option to select a TMI capable network fabric. The application attempts to use a TMI capable network fabric. If no such fabric is available, another fabric from the list dapl,tcp or ofa is used. This option is equivalent to the -genv I_MPI_FABRICS_LIST tmi,dapl,tcp,ofa -genv I_MPI_FALLBACK 1 setting. 

-TMI 

Use this option to select a TMI capable network fabric. The application fails if no such fabric is found. This option is equivalent to the -genv I_MPI_FABRICS_LIST tmi -genv I_MPI_FALLBACK 0 setting. 

-mx 

Use this option to select Myrinet MX* network fabric. The application attempts to use Myrinet MX* network fabric. If no such fabric is available, another fabrics from the list dapl,tcp or ofa is used. This option is equivalent to the -genv I_MPI_FABRICS_LIST tmi,dapl,tcp,ofa -genv I_MPI_TMI_PROVIDER mx -genv I_MPI_DAPL_PROVIDER mx -genv I_MPI_FALLBACK 1 setting. 

-MX 

Use this option to select Myrinet MX* network fabric. The application fails if no such fabric is found. This option is equivalent to the -genv I_MPI_FABRICS_LIST tmi -genv I_MPI_TMI_PROVIDER mx -genv I_MPI_FALLBACK 0 setting. 

-psm 

Use this option to select Intel® True Scale Fabric. The application attempts to use Intel True Scale Fabric. If no such fabric is available, another fabrics from the list dapl,tcp or ofa is used. This option is equivalent to the -genv I_MPI_FABRICS_LIST tmi,dapl,tcp,ofa -genv I_MPI_TMI_PROVIDER psm -genv I_MPI_FALLBACK 1 setting. 

-PSM 

Use this option to select Intel True Scale Fabric. The application fails if no such fabric is found. This option is equivalent to the -genv I_MPI_FABRICS_LIST tmi -genv I_MPI_TMI_PROVIDER psm -genv I_MPI_FALLBACK 0 setting.