{"action":"created","issue":{"url":"https://api.github.com/repos/open-mpi/ompi/issues/1185","labels_url":"https://api.github.com/repos/open-mpi/ompi/issues/1185/labels{/name}","comments_url":"https://api.github.com/repos/open-mpi/ompi/issues/1185/comments","events_url":"https://api.github.com/repos/open-mpi/ompi/issues/1185/events","html_url":"https://github.com/open-mpi/ompi/issues/1185","id":120781164,"number":1185,"title":"MPICH p2p failures","user":{"login":"artpol84","id":7534910,"avatar_url":"https://avatars.githubusercontent.com/u/7534910?v=3","gravatar_id":"","url":"https://api.github.com/users/artpol84","html_url":"https://github.com/artpol84","followers_url":"https://api.github.com/users/artpol84/followers","following_url":"https://api.github.com/users/artpol84/following{/other_user}","gists_url":"https://api.github.com/users/artpol84/gists{/gist_id}","starred_url":"https://api.github.com/users/artpol84/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/artpol84/subscriptions","organizations_url":"https://api.github.com/users/artpol84/orgs","repos_url":"https://api.github.com/users/artpol84/repos","events_url":"https://api.github.com/users/artpol84/events{/privacy}","received_events_url":"https://api.github.com/users/artpol84/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/open-mpi/ompi/labels/blocker","name":"blocker","color":"e11d21"},{"url":"https://api.github.com/repos/open-mpi/ompi/labels/bug","name":"bug","color":"fc2929"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":8,"created_at":"2015-12-07T14:08:07Z","updated_at":"2015-12-08T12:57:53Z","closed_at":"2015-12-08T06:09:04Z","body":"I see MTT failures for the following tests:\r\n* **bsend2**\r\n* **bsendalign**\r\n* **bsend5**\r\n* **cancelrecv** (addressed in Issue https://github.com/open-mpi/ompi/issues/1175)\r\n* **icsend** (addressed in PR https://github.com/open-mpi/ompi/pull/1184)\r\n\r\nThe rest of the tests seems to have same problem: **hang**. It can be observed with **pml/ob1**, **btl/[tcp,openib]**, if I use **pml/yalla** (mxm) I see no problems with those tests. All problems can be reproduced even on one node, but you must make sure that you don't include any sm BTLs:  `-mca btl self,[tcp,openib]`. In all cases rank0 that receives the data remains blocked in `MPI_Recv()` while all senders reach `MPI_Finalize()` and *think* that the data was sent correctly.\r\nHere is some additional information on each of them:\r\n* **bsend2** and **bsendalign** are similar from this problems point of view problem, they can be reproduced with just 2 processes.\r\n* **bsend5** needs 4 processes to hang."},"comment":{"url":"https://api.github.com/repos/open-mpi/ompi/issues/comments/162872689","html_url":"https://github.com/open-mpi/ompi/issues/1185#issuecomment-162872689","issue_url":"https://api.github.com/repos/open-mpi/ompi/issues/1185","id":162872689,"user":{"login":"artpol84","id":7534910,"avatar_url":"https://avatars.githubusercontent.com/u/7534910?v=3","gravatar_id":"","url":"https://api.github.com/users/artpol84","html_url":"https://github.com/artpol84","followers_url":"https://api.github.com/users/artpol84/followers","following_url":"https://api.github.com/users/artpol84/following{/other_user}","gists_url":"https://api.github.com/users/artpol84/gists{/gist_id}","starred_url":"https://api.github.com/users/artpol84/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/artpol84/subscriptions","organizations_url":"https://api.github.com/users/artpol84/orgs","repos_url":"https://api.github.com/users/artpol84/repos","events_url":"https://api.github.com/users/artpol84/events{/privacy}","received_events_url":"https://api.github.com/users/artpol84/received_events","type":"User","site_admin":false},"created_at":"2015-12-08T12:57:53Z","updated_at":"2015-12-08T12:57:53Z","body":"I've caught this with MTT and it was 100% reproducible. Master MTT must be\nrevisited.\n\nвторник, 8 декабря 2015 г. пользователь Nathan Hjelm написал:\n\n> Not sure how MTT missed this. Seems to only trigger under specific\n> circumstances. Thanks for reporting this. Will patch 1.10.2 and 2.x.\n>\n> —\n> Reply to this email directly or view it on GitHub\n> <https://github.com/open-mpi/ompi/issues/1185#issuecomment-162771672>.\n>\n\n\n-- \n-----\nBest regards, Artem Polyakov\n(Mobile mail)\n"}}