openfoam并行

[气固两相流]

openfoam ubuntu下并行好像和linux下不太一样，请问大家openfoam Linux下如何并行

[气固两相流]

OpenFOAM-6(16) mpirun -np 2 interFoam -parallel

The value of the MCA parameter "plm_rsh_agent" was set to a path
that could not be found:

plm_rsh_agent: ssh : rsh

Please either unset the parameter, or check that the path is correct

在linux下输入并行命令下，显示的错误，请大家告知