On 05/01/2012 05:30 AM, Albert Spade wrote: > I also set environment for Hydra process manager by adding > export HYDRA_FILE=/root/hosts > in .bashrc file in /root Did you mean to set HYDRA_HOST_FILE? Can you try running ./cpi without setting the HYDRA_HOST_FILE first? -- Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji