{"action":"opened","issue":{"url":"https://api.github.com/repos/dealii/dealii/issues/2951","repository_url":"https://api.github.com/repos/dealii/dealii","labels_url":"https://api.github.com/repos/dealii/dealii/issues/2951/labels{/name}","comments_url":"https://api.github.com/repos/dealii/dealii/issues/2951/comments","events_url":"https://api.github.com/repos/dealii/dealii/issues/2951/events","html_url":"https://github.com/dealii/dealii/issues/2951","id":170723493,"number":2951,"title":"MPI_Comm_free() called after MPI_FINALIZE","user":{"login":"jperryhouts","id":6118266,"avatar_url":"https://avatars.githubusercontent.com/u/6118266?v=3","gravatar_id":"","url":"https://api.github.com/users/jperryhouts","html_url":"https://github.com/jperryhouts","followers_url":"https://api.github.com/users/jperryhouts/followers","following_url":"https://api.github.com/users/jperryhouts/following{/other_user}","gists_url":"https://api.github.com/users/jperryhouts/gists{/gist_id}","starred_url":"https://api.github.com/users/jperryhouts/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jperryhouts/subscriptions","organizations_url":"https://api.github.com/users/jperryhouts/orgs","repos_url":"https://api.github.com/users/jperryhouts/repos","events_url":"https://api.github.com/users/jperryhouts/events{/privacy}","received_events_url":"https://api.github.com/users/jperryhouts/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-08-11T19:15:33Z","updated_at":"2016-08-11T19:15:33Z","closed_at":null,"body":"It had been a while since I updated deal.ii, so I can't pin down when this happened, but recently I've been getting MPI errors at the end of parallel model runs:\r\n```\r\n*** The MPI_Comm_free() function was called after MPI_FINALIZE was invoked.\r\n*** This is disallowed by the MPI standard.\r\n```\r\nI first noticed it in Aspect, but it apparently happens in step-32 also, so I don't think it's a regression downstream. I haven't changed my Trilinos install, so it's either in deal.ii or p4est. It happens on Ubuntu, with GCC 5.4, and Debian testing, which I believe is on GCC 6.x."}}
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