{"action":"created","issue":{"url":"https://api.github.com/repos/yixuan/spectra/issues/44","repository_url":"https://api.github.com/repos/yixuan/spectra","labels_url":"https://api.github.com/repos/yixuan/spectra/issues/44/labels{/name}","comments_url":"https://api.github.com/repos/yixuan/spectra/issues/44/comments","events_url":"https://api.github.com/repos/yixuan/spectra/issues/44/events","html_url":"https://github.com/yixuan/spectra/issues/44","id":311486148,"number":44,"title":"Failure of test cases with spectra-0.2.0 and eigen-3.2.8","user":{"login":"skyrulz","id":38095001,"avatar_url":"https://avatars2.githubusercontent.com/u/38095001?v=4","gravatar_id":"","url":"https://api.github.com/users/skyrulz","html_url":"https://github.com/skyrulz","followers_url":"https://api.github.com/users/skyrulz/followers","following_url":"https://api.github.com/users/skyrulz/following{/other_user}","gists_url":"https://api.github.com/users/skyrulz/gists{/gist_id}","starred_url":"https://api.github.com/users/skyrulz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/skyrulz/subscriptions","organizations_url":"https://api.github.com/users/skyrulz/orgs","repos_url":"https://api.github.com/users/skyrulz/repos","events_url":"https://api.github.com/users/skyrulz/events{/privacy}","received_events_url":"https://api.github.com/users/skyrulz/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":4,"created_at":"2018-04-05T06:23:43Z","updated_at":"2018-04-10T22:51:48Z","closed_at":null,"author_association":"NONE","body":"Hello,\r\nI am using spectra-0.2.0 and eigen-3.2.8 versions. I am facing issues with test cases supplied in spectra-0.2.0/test. I would like to see that all the test cases are passing successfully. As a start my interest is in successful execution of GenEigs.cpp, as i want to use GenEigsSolver. None of the test cases are passing provided along with the test suite. Attached the output of GenEigs.out file:\r\n[GenEigs Test Failure log.txt](https://github.com/yixuan/spectra/files/1878761/GenEigs.Test.Failure.log.txt)\r\nLooks like the Eigen values are not converging at all with this data. \r\n\r\nSince i am using older version (non-c++11) of C++, i updated the test/Makefile CXXFLAGS to \r\n-std=c++0x mentioning the c++ version explicitly. Apart from that i have not made any changes to GenEigs.cpp.\r\n\r\nAny solution would be helpful. \r\n\r\nThanks\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/yixuan/spectra/issues/comments/380272476","html_url":"https://github.com/yixuan/spectra/issues/44#issuecomment-380272476","issue_url":"https://api.github.com/repos/yixuan/spectra/issues/44","id":380272476,"user":{"login":"yixuan","id":216398,"avatar_url":"https://avatars2.githubusercontent.com/u/216398?v=4","gravatar_id":"","url":"https://api.github.com/users/yixuan","html_url":"https://github.com/yixuan","followers_url":"https://api.github.com/users/yixuan/followers","following_url":"https://api.github.com/users/yixuan/following{/other_user}","gists_url":"https://api.github.com/users/yixuan/gists{/gist_id}","starred_url":"https://api.github.com/users/yixuan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/yixuan/subscriptions","organizations_url":"https://api.github.com/users/yixuan/orgs","repos_url":"https://api.github.com/users/yixuan/repos","events_url":"https://api.github.com/users/yixuan/events{/privacy}","received_events_url":"https://api.github.com/users/yixuan/received_events","type":"User","site_admin":false},"created_at":"2018-04-10T22:51:48Z","updated_at":"2018-04-10T22:51:48Z","author_association":"OWNER","body":"Actually the failures in your shared log are \"expected\". If you take a closer look you will find that those are cases of \"Smallest Magnitude\" or \"Smallest Imaginary Part\". That is the nature of the algorithm -- it is good at computing largest eigenvalues rather than smallest eigenvalues. And that's why in newer versions of Spectra I allow these cases to fail in the test suite."}}
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