[MPICH] Message passing between two programs on two machines without smpd - Yes

[Jayesh Krishna]

 Hi,
  Yes, you can. This is what I do to run an MPI program on
machine1.domain.com and machine2.domain.com without using mpiexec/smpd (no
PM),

############ on machine1 ###############
set PMI_ROOT_HOST=machine1.domain.com
set PMI_ROOT_PORT=9222
set PMI_ROOT_LOCAL=1
set PMI_RANK=0
set PMI_SIZE=2
set PMI_KVS=mpich2

########### on machine2 ###############
set PMI_ROOT_HOST=machine1.domain.com
set PMI_ROOT_PORT=9222
set PMI_ROOT_LOCAL=0
set PMI_RANK=1
set PMI_SIZE=2
set PMI_KVS=mpich2
########################################

 Now run the programs on machine1 & machine2 from command line (like
ordinary executables -- without using mpiexec).
 Let us know the results.

Regards,
Jayesh

-----Original Message-----
From: owner-mpich-discuss at mcs.anl.gov
[mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Yu-Cheng Chou
Sent: Sunday, June 10, 2007 1:35 PM
To: mpich-discuss at mcs.anl.gov
Subject: [MPICH] Message passing between two programs on two machines
without smpd


Hi,

I have two MPI programs, each of which resides in one Windows machine.
Can I set the PMI environment variables so that these two programs can be
launched manually without mpiexec and messages can be passed between these
two programs without smpd?

Thank you