{"action":"created","issue":{"url":"https://api.github.com/repos/trilinos/Trilinos/issues/889","repository_url":"https://api.github.com/repos/trilinos/Trilinos","labels_url":"https://api.github.com/repos/trilinos/Trilinos/issues/889/labels{/name}","comments_url":"https://api.github.com/repos/trilinos/Trilinos/issues/889/comments","events_url":"https://api.github.com/repos/trilinos/Trilinos/issues/889/events","html_url":"https://github.com/trilinos/Trilinos/issues/889","id":192335543,"number":889,"title":"Muelu::Amesos2Smoother::Setup throw...","user":{"login":"spdomin","id":8699324,"avatar_url":"https://avatars.githubusercontent.com/u/8699324?v=3","gravatar_id":"","url":"https://api.github.com/users/spdomin","html_url":"https://github.com/spdomin","followers_url":"https://api.github.com/users/spdomin/followers","following_url":"https://api.github.com/users/spdomin/following{/other_user}","gists_url":"https://api.github.com/users/spdomin/gists{/gist_id}","starred_url":"https://api.github.com/users/spdomin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/spdomin/subscriptions","organizations_url":"https://api.github.com/users/spdomin/orgs","repos_url":"https://api.github.com/users/spdomin/repos","events_url":"https://api.github.com/users/spdomin/events{/privacy}","received_events_url":"https://api.github.com/users/spdomin/received_events","type":"User","site_admin":false},"labels":[{"id":314277762,"url":"https://api.github.com/repos/trilinos/Trilinos/labels/Amesos2","name":"Amesos2","color":"0052cc","default":false},{"id":287520105,"url":"https://api.github.com/repos/trilinos/Trilinos/labels/enhancement","name":"enhancement","color":"84b6eb","default":true},{"id":289606071,"url":"https://api.github.com/repos/trilinos/Trilinos/labels/MueLu","name":"MueLu","color":"5319e7","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":21,"created_at":"2016-11-29T16:46:22Z","updated_at":"2016-11-30T18:03:51Z","closed_at":null,"body":"I am transitioning to use purely Muelu (no ML/Epetra).\r\n\r\nIn one of my tests, elemClosedDomain, I see the following fail:\r\n\r\nThrow number = 13\r\nThrow test that evaluated to true: rowMap->getComm()->getSize() > 1\r\n\r\nMueLu::Amesos2Smoother::Setup Fixing coarse matrix for Amesos2 for multiple processors has not been implemented yet.\r\n\r\nI already wrote Jonathan and Siva about this, however, if anyone has any input, it would be most appreciative.\r\n"},"comment":{"url":"https://api.github.com/repos/trilinos/Trilinos/issues/comments/263947281","html_url":"https://github.com/trilinos/Trilinos/issues/889#issuecomment-263947281","issue_url":"https://api.github.com/repos/trilinos/Trilinos/issues/889","id":263947281,"user":{"login":"mhoemmen","id":926747,"avatar_url":"https://avatars.githubusercontent.com/u/926747?v=3","gravatar_id":"","url":"https://api.github.com/users/mhoemmen","html_url":"https://github.com/mhoemmen","followers_url":"https://api.github.com/users/mhoemmen/followers","following_url":"https://api.github.com/users/mhoemmen/following{/other_user}","gists_url":"https://api.github.com/users/mhoemmen/gists{/gist_id}","starred_url":"https://api.github.com/users/mhoemmen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mhoemmen/subscriptions","organizations_url":"https://api.github.com/users/mhoemmen/orgs","repos_url":"https://api.github.com/users/mhoemmen/repos","events_url":"https://api.github.com/users/mhoemmen/events{/privacy}","received_events_url":"https://api.github.com/users/mhoemmen/received_events","type":"User","site_admin":false},"created_at":"2016-11-30T18:03:51Z","updated_at":"2016-11-30T18:03:51Z","body":"@srajama1 wrote:\r\n> The A_gather map depends on the solver. For a sequential solver what you said will work. If the solver is SuperLU-Dist, I replace SerialComm with an appropriate one ? \r\n\r\nThat's right!  In fact, if your gather Map has the original Map's communicator, you can use the Map method that creates a new Map with a new communicator that strips out processes with zero indices.  MueLu exercises this feature for rebalancing.\r\n\r\n> Note that this is similar to EpetraExt's reindexing operator which Xyce uses in number of places. Do you want to do this in tpetra/ext or just implement a custom one in Amesos2?\r\n\r\nHow about you implement exactly what you need in Amesos2 first, then let me know?  At that point, we can decide if it makes sense to put in Tpetra, or if it needs generalization first."}}
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