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Re: [Condor-users] What is ch_p4

Junaid N. Sahibzada wrote:
I am going to use MPI on condor.

Can any one tell me what is ch_p4?

the condor documentation says

"The MPI universe in Condor currently supports MPICH versions 1.2.2, 1.2.3, and 1.2.4 using the ch_p4 device"


MPICH supports several different communications "devices", such as myrinet, infiniband and TCP. the "ch_p4" device is the TCP "device". It is the usual device, unless you have special, high-speed interconnects between your machines.