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mynode
2008 May 30
1
R and Openmpi
...running as I think I should.
Rmpi version 0.5.5
Openmpi version 1.1
Viglen HPC with (effectively) 9 blades and 8 nodes on each blade.
myhosts file contains details of the 9 blades, but specifies that there are 4 slots on each blade (to make sure I leave room for other users).
When running mpirun -bynode -np 2 -hostfile myhosts R --slave --vanilla task_pull.R
1. I get as many R slaves as there slots defined in my myhosts file (there are 36 slots defined, and I get 36 slaves, regardless of the setting of -np, the master goes on the first machine in the myhosts file.
2. The .Rout file confirms t...