{"action":"opened","issue":{"url":"https://api.github.com/repos/ANTsX/ANTs/issues/629","repository_url":"https://api.github.com/repos/ANTsX/ANTs","labels_url":"https://api.github.com/repos/ANTsX/ANTs/issues/629/labels{/name}","comments_url":"https://api.github.com/repos/ANTsX/ANTs/issues/629/comments","events_url":"https://api.github.com/repos/ANTsX/ANTs/issues/629/events","html_url":"https://github.com/ANTsX/ANTs/issues/629","id":355917625,"node_id":"MDU6SXNzdWUzNTU5MTc2MjU=","number":629,"title":"antsRegistration seems to exit stages prematurely","user":{"login":"thefabus","id":23358566,"node_id":"MDQ6VXNlcjIzMzU4NTY2","avatar_url":"https://avatars1.githubusercontent.com/u/23358566?v=4","gravatar_id":"","url":"https://api.github.com/users/thefabus","html_url":"https://github.com/thefabus","followers_url":"https://api.github.com/users/thefabus/followers","following_url":"https://api.github.com/users/thefabus/following{/other_user}","gists_url":"https://api.github.com/users/thefabus/gists{/gist_id}","starred_url":"https://api.github.com/users/thefabus/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/thefabus/subscriptions","organizations_url":"https://api.github.com/users/thefabus/orgs","repos_url":"https://api.github.com/users/thefabus/repos","events_url":"https://api.github.com/users/thefabus/events{/privacy}","received_events_url":"https://api.github.com/users/thefabus/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-08-31T10:00:36Z","updated_at":"2018-08-31T10:00:36Z","closed_at":null,"author_association":"NONE","body":"Hello,\r\n\r\nI tried to run antsRegistration with the following command:\r\n`export ITK_GLOBAL_DEFAULT_NUMBER_OF_THREADS=36; antsRegistration --verbose 1 -d 3 --float 1 -o [test_ANTs_Elavl3-H2BRFP_rot/test_,test_ANTs_Elavl3-H2BRFP_rot/test_Warped.nrrd] --use-histogram-matching 0 -r [Elavl3-H2BRFP_rot.nrrd,23_0100_ANTs_Elavl3-H2BRFP_rot/test.nrrd,1] -t Rigid[0.1] -m MI[Elavl3-H2BRFP_rot.nrrd,23_0100_ANTs_Elavl3-H2BRFP_rot/test.nrrd,1,32,Regular,1.0] -c [500x500x500x0,1e-10,10] --shrink-factors 12x8x4x2 --smoothing-sigmas 4x3x2x1 -t Affine[0.1] -m MI[Elavl3-H2BRFP_rot.nrrd,23_0100_ANTs_Elavl3-H2BRFP_rot/test.nrrd,1,32,Regular,1.0] -c [200x200x200x0,1e-10,10] --shrink-factors 12x8x4x2 --smoothing-sigmas 4x3x2x1`\r\n\r\nSee attached file for the output:\r\n[log.txt](https://github.com/ANTsX/ANTs/files/2339593/log.txt)\r\n\r\nWhat confuses me, some stages exit before the convergence threshold is met. I tried several things: \r\n\r\n- number of threads=1\r\n- set threshold to 1e-20\r\n- change window size to 5 or 40\r\n\r\nIn all those cases the issue persists. When changing the threshold to -1, all iterations are always executed (as expected). From the output I also can't confidently infer what \"the change in MI value for the last 10 iterations\" really means. I hope this is enough information to illustrate the issue.\r\n\r\nRegards,\r\nFabian"}}
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