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charm - [charm] Travis CI (i.e. non-interactive): The authenticity of host 'localhost (127.0.0.1)' can't be established.

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Subject: Charm++ parallel programming system

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[charm] Travis CI (i.e. non-interactive): The authenticity of host 'localhost (127.0.0.1)' can't be established.


Chronological Thread 
  • From: Jeff Hammond <jeff.science AT gmail.com>
  • To: "charm AT cs.uiuc.edu" <charm AT cs.uiuc.edu>
  • Subject: [charm] Travis CI (i.e. non-interactive): The authenticity of host 'localhost (127.0.0.1)' can't be established.
  • Date: Fri, 25 Dec 2015 15:38:12 -0800
Motivation: I am trying to enable Charm++ and AMPI in Travis CI for the Parallel Research Kernels.

Problem: See below.  I cannot launch Charm++ programs with charmrun because ssh fails.  Because this is Travis CI, it is not interactive, and whatever needs to be done to fix the otherwise trivial issue with localhost authentication needs to be something that can be completely automated.

Is there a way to tell charmrun to ignore the localhost issue?  If not, can one be added?  I'd like to avoid making a change downstream because then I'll have to verify and possibly redo it for future releases of Charm++ if charmrun changes.  And I don't want to be mucking around with SSH settings in Travis CI instances.

From https://travis-ci.org/jeffhammond/PRK/jobs/98821065:

+/home/travis/charm/netlrts-linux-x86_64-smp/bin/charmrun CHARM++/Synch_p2p/p2p +p4 10 1024 1024
The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is 40:ab:a1:e4:e7:8f:a8:c4:15:74:a3:62:8f:e6:92:7c.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is 40:ab:a1:e4:e7:8f:a8:c4:15:74:a3:62:8f:e6:92:7c.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is 40:ab:a1:e4:e7:8f:a8:c4:15:74:a3:62:8f:e6:92:7c.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'localhost (127.0.0.1)' can't be established.
ECDSA key fingerprint is 40:ab:a1:e4:e7:8f:a8:c4:15:74:a3:62:8f:e6:92:7c.
Are you sure you want to continue connecting (yes/no)? 

Thanks,

Jeff

-- 
Jeff Hammond
jeff.science AT gmail.com
http://jeffhammond.github.io/


























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