{"action":"reopened","issue":{"url":"https://api.github.com/repos/trilinos/Trilinos/issues/568","repository_url":"https://api.github.com/repos/trilinos/Trilinos","labels_url":"https://api.github.com/repos/trilinos/Trilinos/issues/568/labels{/name}","comments_url":"https://api.github.com/repos/trilinos/Trilinos/issues/568/comments","events_url":"https://api.github.com/repos/trilinos/Trilinos/issues/568/events","html_url":"https://github.com/trilinos/Trilinos/issues/568","id":172012244,"number":568,"title":"Tpetra: proposed changes to handle processes with zero rows","user":{"login":"allaffa","id":2488656,"avatar_url":"https://avatars.githubusercontent.com/u/2488656?v=3","gravatar_id":"","url":"https://api.github.com/users/allaffa","html_url":"https://github.com/allaffa","followers_url":"https://api.github.com/users/allaffa/followers","following_url":"https://api.github.com/users/allaffa/following{/other_user}","gists_url":"https://api.github.com/users/allaffa/gists{/gist_id}","starred_url":"https://api.github.com/users/allaffa/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/allaffa/subscriptions","organizations_url":"https://api.github.com/users/allaffa/orgs","repos_url":"https://api.github.com/users/allaffa/repos","events_url":"https://api.github.com/users/allaffa/events{/privacy}","received_events_url":"https://api.github.com/users/allaffa/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/trilinos/Trilinos/labels/KokkosKernels","name":"KokkosKernels","color":"eb6420"},{"url":"https://api.github.com/repos/trilinos/Trilinos/labels/Tpetra","name":"Tpetra","color":"5319e7"}],"state":"open","locked":false,"assignee":{"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},"assignees":[{"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}],"milestone":null,"comments":17,"created_at":"2016-08-18T22:05:30Z","updated_at":"2016-08-23T16:17:10Z","closed_at":null,"body":"@allaffa @jhux2 @trilinos/tpetra @rstumin \r\n\r\nI am currently working on a project at Sandia about multigrid preconditioners where some tasks have no matrix rows. This has revealed two places where KokkosKernels and Tpetra throw an exception.  \r\nI would like to propose a change of the conditions to throw the exception, checking also that the number of rows be different from zero. \r\n\r\nSee attached .txt files. \r\n[0005-Tpetra-added-check-on-rows-in-exception.txt](https://github.com/trilinos/Trilinos/files/425981/0005-Tpetra-added-check-on-rows-in-exception.txt)\r\n[0007-Kokkos-added-check-on-rows-in-exception.txt](https://github.com/trilinos/Trilinos/files/425980/0007-Kokkos-added-check-on-rows-in-exception.txt)\r\n\r\n"}}
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