{"action":"closed","issue":{"url":"https://api.github.com/repos/NREL/EnergyPlus/issues/4449","labels_url":"https://api.github.com/repos/NREL/EnergyPlus/issues/4449/labels{/name}","comments_url":"https://api.github.com/repos/NREL/EnergyPlus/issues/4449/comments","events_url":"https://api.github.com/repos/NREL/EnergyPlus/issues/4449/events","html_url":"https://github.com/NREL/EnergyPlus/issues/4449","id":41553272,"number":4449,"title":"User file with AFN fails with iteration error in 64-bit but not in 32-bit","user":{"login":"mjwitte","id":4991075,"avatar_url":"https://avatars.githubusercontent.com/u/4991075?v=3","gravatar_id":"","url":"https://api.github.com/users/mjwitte","html_url":"https://github.com/mjwitte","followers_url":"https://api.github.com/users/mjwitte/followers","following_url":"https://api.github.com/users/mjwitte/following{/other_user}","gists_url":"https://api.github.com/users/mjwitte/gists{/gist_id}","starred_url":"https://api.github.com/users/mjwitte/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mjwitte/subscriptions","organizations_url":"https://api.github.com/users/mjwitte/orgs","repos_url":"https://api.github.com/users/mjwitte/repos","events_url":"https://api.github.com/users/mjwitte/events{/privacy}","received_events_url":"https://api.github.com/users/mjwitte/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2014-08-30T02:30:32Z","updated_at":"2015-06-18T18:47:05Z","closed_at":"2015-06-18T18:47:05Z","body":"Ticket 6712\r\nThis has been lingering for a while, since v7.2, this user's file completes on 32-bit windows, but fails with this fatal error in 64-bit version:\r\n   ** Severe  ** Too many iterations (SOLVZP) in Airflow Network simulation\r\n   ** Warning ** AirflowNetwork: SOLVER, Changing values for initialization flag, Relative airflow convergence, Absolute airflow convergence, Convergence acceleration limit or Maximum Iteration Number may solve the problem.\r\n   **   ~~~   **  Environment=EX, at Simulation time=01/09 07:30 - 07:45\r\n   **   ~~~   ** ..Iterations=500, Max allowed=500\r\n   **  Fatal  ** AirflowNetwork: SOLVER, The previous error causes termination.\r\n\r\nSame behavior seen in v8.1.  \r\nv8.2 (Aug 26 source) 64-bit fails with same error - have not built a 32-bit exe to see if it behaves differently.\r\n"}}