On 10/28/2016 09:34 AM, RAJAT ARORA wrote:
To run the code on n processes, I used to run the command
mpirun -np <n> ./<code-name>
But, now, when I run it using this command, it runs n programs with n
mpi processes each.
It is like I have executed mpirun -np <n> ./<code-name> command n times
and the compiler is then running n^2 mpi processes.
I figured this out as printing from rank 0 is also printing n times.
I am unable to figure out anything. I did not install any new library.
Can anyone help me figuring out, what is wrong ?
I bet you are actually only running n copies of the program, each of
which has only one rank. What happens if you output from rank 1? Do you
get any output at all?
Best
W.
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Wolfgang Bangerth email: [email protected]
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