{"action":"created","issue":{"url":"https://api.github.com/repos/mfem/mfem/issues/484","repository_url":"https://api.github.com/repos/mfem/mfem","labels_url":"https://api.github.com/repos/mfem/mfem/issues/484/labels{/name}","comments_url":"https://api.github.com/repos/mfem/mfem/issues/484/comments","events_url":"https://api.github.com/repos/mfem/mfem/issues/484/events","html_url":"https://github.com/mfem/mfem/issues/484","id":320372901,"number":484,"title":"build submatrix for list of finite elements","user":{"login":"ben-s-southworth","id":8642948,"avatar_url":"https://avatars0.githubusercontent.com/u/8642948?v=4","gravatar_id":"","url":"https://api.github.com/users/ben-s-southworth","html_url":"https://github.com/ben-s-southworth","followers_url":"https://api.github.com/users/ben-s-southworth/followers","following_url":"https://api.github.com/users/ben-s-southworth/following{/other_user}","gists_url":"https://api.github.com/users/ben-s-southworth/gists{/gist_id}","starred_url":"https://api.github.com/users/ben-s-southworth/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ben-s-southworth/subscriptions","organizations_url":"https://api.github.com/users/ben-s-southworth/orgs","repos_url":"https://api.github.com/users/ben-s-southworth/repos","events_url":"https://api.github.com/users/ben-s-southworth/events{/privacy}","received_events_url":"https://api.github.com/users/ben-s-southworth/received_events","type":"User","site_admin":false},"labels":[{"id":541315953,"url":"https://api.github.com/repos/mfem/mfem/labels/linalg","name":"linalg","color":"e99695","default":false},{"id":223414108,"url":"https://api.github.com/repos/mfem/mfem/labels/question","name":"question","color":"cc317c","default":true}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2018-05-04T17:59:28Z","updated_at":"2018-05-07T23:28:22Z","closed_at":null,"author_association":"NONE","body":"Hi MFEM team,\r\nI would like to build the algebraic submatrix corresponding to a given set of finite element indices (can assume these elements are all on processor). Does MFEM currently have this functionality? E.g., call some routine like `Assemble(Array<int>element_list, SparseMatrix &submat)` that will spit out a sparse matrix corresponding to the element connections in element list? If not, any tips on where to build something like this?\r\nThanks!"},"comment":{"url":"https://api.github.com/repos/mfem/mfem/issues/comments/387237313","html_url":"https://github.com/mfem/mfem/issues/484#issuecomment-387237313","issue_url":"https://api.github.com/repos/mfem/mfem/issues/484","id":387237313,"user":{"login":"tzanio","id":1278247,"avatar_url":"https://avatars1.githubusercontent.com/u/1278247?v=4","gravatar_id":"","url":"https://api.github.com/users/tzanio","html_url":"https://github.com/tzanio","followers_url":"https://api.github.com/users/tzanio/followers","following_url":"https://api.github.com/users/tzanio/following{/other_user}","gists_url":"https://api.github.com/users/tzanio/gists{/gist_id}","starred_url":"https://api.github.com/users/tzanio/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tzanio/subscriptions","organizations_url":"https://api.github.com/users/tzanio/orgs","repos_url":"https://api.github.com/users/tzanio/repos","events_url":"https://api.github.com/users/tzanio/events{/privacy}","received_events_url":"https://api.github.com/users/tzanio/received_events","type":"User","site_admin":false},"created_at":"2018-05-07T23:28:22Z","updated_at":"2018-05-07T23:28:22Z","author_association":"OWNER","body":"@mlstowell is this something that can be handled with the [entity-sets-dev](https://github.com/mfem/mfem/tree/entity-sets-dev) branch?"}}
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