{"action":"created","issue":{"url":"https://api.github.com/repos/uturuncoglu/RegESM/issues/13","labels_url":"https://api.github.com/repos/uturuncoglu/RegESM/issues/13/labels{/name}","comments_url":"https://api.github.com/repos/uturuncoglu/RegESM/issues/13/comments","events_url":"https://api.github.com/repos/uturuncoglu/RegESM/issues/13/events","html_url":"https://github.com/uturuncoglu/RegESM/issues/13","id":80614350,"number":13,"title":"Reproducibility problem ...","user":{"login":"uturuncoglu","id":1228999,"avatar_url":"https://avatars.githubusercontent.com/u/1228999?v=3","gravatar_id":"","url":"https://api.github.com/users/uturuncoglu","html_url":"https://github.com/uturuncoglu","followers_url":"https://api.github.com/users/uturuncoglu/followers","following_url":"https://api.github.com/users/uturuncoglu/following{/other_user}","gists_url":"https://api.github.com/users/uturuncoglu/gists{/gist_id}","starred_url":"https://api.github.com/users/uturuncoglu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/uturuncoglu/subscriptions","organizations_url":"https://api.github.com/users/uturuncoglu/orgs","repos_url":"https://api.github.com/users/uturuncoglu/repos","events_url":"https://api.github.com/users/uturuncoglu/events{/privacy}","received_events_url":"https://api.github.com/users/uturuncoglu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-05-25T17:53:10Z","updated_at":"2015-05-25T17:57:48Z","closed_at":null,"body":"TICKET: #3613762: ESMF and reproducibility ...\r\n\r\nI am trying to test the reproducibility of the results in coupled model.,For this reason, i am using \"-fp-model precise\" compiler flag in all the model components and i tested them in standalone mode. I confirmed that the results of the individual components (i.e. atmosphere and wave) are reproducible. Then, i tested,coupled model but i could not reproduce the results. When i compare the,two different run with exactly same configuration, the results are,different. So, i just want to find the source of this issue and i would,like to narrow down the possible sources. My question is that do i need to,compile ESMF also with \"-fp-model precise\" compiler flag? Is there any,ESMF test to check the reproducibility in ESMF side? What do you suggest,about it? You could find the detail of my work environment as follows\r\n\r\nifort (IFORT) 14.0.1 20131008\r\nopenmpi-1.6.5 (compiled with same compiler)\r\nesmf-7.0.0 (beta 38)\r\nCentOS release 6.5 (Final) 2.6.32-431.29.2.el6.x86_64\r\nIntel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz "},"comment":{"url":"https://api.github.com/repos/uturuncoglu/RegESM/issues/comments/105279831","html_url":"https://github.com/uturuncoglu/RegESM/issues/13#issuecomment-105279831","issue_url":"https://api.github.com/repos/uturuncoglu/RegESM/issues/13","id":105279831,"user":{"login":"uturuncoglu","id":1228999,"avatar_url":"https://avatars.githubusercontent.com/u/1228999?v=3","gravatar_id":"","url":"https://api.github.com/users/uturuncoglu","html_url":"https://github.com/uturuncoglu","followers_url":"https://api.github.com/users/uturuncoglu/followers","following_url":"https://api.github.com/users/uturuncoglu/following{/other_user}","gists_url":"https://api.github.com/users/uturuncoglu/gists{/gist_id}","starred_url":"https://api.github.com/users/uturuncoglu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/uturuncoglu/subscriptions","organizations_url":"https://api.github.com/users/uturuncoglu/orgs","repos_url":"https://api.github.com/users/uturuncoglu/repos","events_url":"https://api.github.com/users/uturuncoglu/events{/privacy}","received_events_url":"https://api.github.com/users/uturuncoglu/received_events","type":"User","site_admin":false},"created_at":"2015-05-25T17:57:47Z","updated_at":"2015-05-25T17:57:47Z","body":"It seems that the returned factorLists are identical (in text files). I attached printed factor lists as reference. So, somehow i have still difference between runs. I also checked wave component again and its output is same in standalone version. So, it seems that driver is responsible from the difference. As i mention previously, do i need to compile ESMF with \"-fp-model precise\" option (for Intel compiler) to have a bit-to-bit reproducibility. In my case, standalone model components does not produce same results without this option?"}}