Hello Andreas, I added autopkgtest test-suite for ray package. Tests that run ray on one core run perfectly well, but when I tried: mpiexec -n 2 Ray -k 31 -p ecoli_1K_1.fq ecoli_1K_2.fq -o test3
the same error arises as with mpi-mrbayes: -------------------------------------------------------------------------- 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 -------------------------------------------------------------------------- So I also added ssh to dependencies and in fixed the problem. Regards, Nadiya