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I am running an easy Fortran 90 program (Hello world) with MPI. The compilation works fine, if I run ./a.out I get the message, but as soon as I run

$mpiexec -n 1 exec ./a.out

I get two errors:

channel initialization failed

and

gethostbyname failed

Here is a screenshot. If I run a similar Python script what I get is this error.

Vladimir F Героям слава
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alberto.bottopoala
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    Possible duplicate of [MPICH2 gethostbyname failed](http://stackoverflow.com/questions/23112515/mpich2-gethostbyname-failed) – b-fg Nov 12 '16 at 19:34
  • I saw that and I don't think it's the case because I can ssh into 127.0.0.1. In my etc/hosts I see 127.0.0.1 localhost. LITERALLY localhost and not MY localhost (albertobottopoala). I wanted to try to change it but I am afraid of the damages I could make, It says expressly not to change it... – alberto.bottopoala Nov 12 '16 at 21:48
  • For the Python error, use `mpiexec -n 1 python hello_world.py` instead of `mpiexec -n 1 hello_world.py`. – Pierre de Buyl Nov 13 '16 at 21:05
  • Same output.... – alberto.bottopoala Nov 14 '16 at 07:38
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    Any luck with this, I am having similar issues and would like to know what is the root of this problem, how I may go about solving it. – Dipole Sep 10 '17 at 14:01

0 Answers0