Hi, you need to create the machinefile manually this is a text file, and the basic syntax is one hostname per line as i wrote earlier, i recommend you use -host localhost instead of -machinefile machinefile Cheers, Gilles On 2014/04/11 19:56, Mojtaba S. Moghani wrote:

Hi

I cant see the file named machinefile, where it should be?

and if i dont have that, how i should make that file?

how i could know that im done with mpich-3.1 installation?

thanks,

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