{"action":"created","issue":{"url":"https://api.github.com/repos/raffenet/mpich-migrate-test/issues/1913","repository_url":"https://api.github.com/repos/raffenet/mpich-migrate-test","labels_url":"https://api.github.com/repos/raffenet/mpich-migrate-test/issues/1913/labels{/name}","comments_url":"https://api.github.com/repos/raffenet/mpich-migrate-test/issues/1913/comments","events_url":"https://api.github.com/repos/raffenet/mpich-migrate-test/issues/1913/events","html_url":"https://github.com/raffenet/mpich-migrate-test/issues/1913","id":169251128,"number":1913,"title":"MPI_Comm_idup in multithreaded 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is a bug-fix release.","creator":{"login":"raffenet","id":1410792,"avatar_url":"https://avatars.githubusercontent.com/u/1410792?v=3","gravatar_id":"","url":"https://api.github.com/users/raffenet","html_url":"https://github.com/raffenet","followers_url":"https://api.github.com/users/raffenet/followers","following_url":"https://api.github.com/users/raffenet/following{/other_user}","gists_url":"https://api.github.com/users/raffenet/gists{/gist_id}","starred_url":"https://api.github.com/users/raffenet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/raffenet/subscriptions","organizations_url":"https://api.github.com/users/raffenet/orgs","repos_url":"https://api.github.com/users/raffenet/repos","events_url":"https://api.github.com/users/raffenet/events{/privacy}","received_events_url":"https://api.github.com/users/raffenet/received_events","type":"User","site_admin":false},"open_issues":0,"closed_issues":11,"state":"closed","created_at":"2016-07-29T14:57:31Z","updated_at":"2016-08-03T22:38:24Z","due_on":"2014-06-01T05:00:00Z","closed_at":"2016-07-29T14:57:31Z"},"comments":13,"created_at":"2016-08-03T22:38:19Z","updated_at":"2016-08-03T22:38:24Z","closed_at":"2016-08-03T22:38:24Z","body":"**Originally by _balaji@mcs.anl.gov_ on 2013-07-28 19:42:31 -0500**\n\n___\nMPI_Comm_idup does not currently work with MPI_THREAD_MULTIPLE.  This needs to be investigated.\n\nTo reproduce this, configure mpich with --enable-threads=multiple and run the comm_idup test in test/mpi/comm.\n\nIncomplete output:\n\n```\nProcessing directory comm\nLooking in ./comm/testlist\nUnexpected output in comm_idup: Fatal error in PMPI_Comm_idup:\nInternal MPI error!, error stack:\nUnexpected output in comm_idup: PMPI_Comm_idup(159)..............:\nMPI_Comm_idup(comm=MPI_COMM_WORLD, newcomm=0x7fffc4597d3c,\nrequest=0x7fffc4597d2c)\nUnexpected output in comm_idup: PMPI_Comm_idup(139)..............:\nUnexpected output in comm_idup: MPIR_Comm_idup_impl(62)..........:\nUnexpected output in comm_idup: MPIR_Get_contextid_nonblock(1286):\nUnexpected output in comm_idup: gcn_sch(1227)....................:\nthis functionality is not supported when the thread level is greater\nthan MPI_THREAD_SINGLE\n```"},"comment":{"url":"https://api.github.com/repos/raffenet/mpich-migrate-test/issues/comments/237397061","html_url":"https://github.com/raffenet/mpich-migrate-test/issues/1913#issuecomment-237397061","issue_url":"https://api.github.com/repos/raffenet/mpich-migrate-test/issues/1913","id":237397061,"user":{"login":"raffenet","id":1410792,"avatar_url":"https://avatars.githubusercontent.com/u/1410792?v=3","gravatar_id":"","url":"https://api.github.com/users/raffenet","html_url":"https://github.com/raffenet","followers_url":"https://api.github.com/users/raffenet/followers","following_url":"https://api.github.com/users/raffenet/following{/other_user}","gists_url":"https://api.github.com/users/raffenet/gists{/gist_id}","starred_url":"https://api.github.com/users/raffenet/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/raffenet/subscriptions","organizations_url":"https://api.github.com/users/raffenet/orgs","repos_url":"https://api.github.com/users/raffenet/repos","events_url":"https://api.github.com/users/raffenet/events{/privacy}","received_events_url":"https://api.github.com/users/raffenet/received_events","type":"User","site_admin":false},"created_at":"2016-08-03T22:38:23Z","updated_at":"2016-08-03T22:38:23Z","body":"**Originally by _huiweilu_ on 2013-08-16 14:49:37 -0500**\n\n___\nI just tested this on two different machines (Macbook Pro and Intel Xeon with Ubuntu 10.10). Neither of them reproduce the bug with '--enable-threads' option. The command line I used is following:\n\n./configure CC=gcc CXX=g++ F77=gfortran --enable-fc --enable-f77 --enable-threads --with-device=ch3:nemesis --prefix=/path/to/mpich-install\n"}}
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