Folks, This pgm fpi [included in the mpich-1.2.7p1 tarball, computes pi] runs fine on 1 processor on SMP box but for 2 processors I get the below, knowing that 127.0.0.1 means "looping back". Any hints how to make this work most appreciated with mpich-1.2.7p1 [I have to use this version of mpich.]
Many thanks! John McKelvey $mpirun -np 2 fpi connect to address 127.0.0.1: Connection refused Trying krb4 rsh... connect to address 127.0.0.1: Connection refused trying normal rsh (/usr/bin/rsh) localhost.localdomain: Connection refused p0_4885: p4_error: Child process exited while making connection to remote process on localhost.localdomain: 0 Interrupt p0_4885: (33.019531) net_send: could not write to fd=4, errno = 32
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