{"action":"created","issue":{"url":"https://api.github.com/repos/easybuilders/easybuild-framework/issues/2388","repository_url":"https://api.github.com/repos/easybuilders/easybuild-framework","labels_url":"https://api.github.com/repos/easybuilders/easybuild-framework/issues/2388/labels{/name}","comments_url":"https://api.github.com/repos/easybuilders/easybuild-framework/issues/2388/comments","events_url":"https://api.github.com/repos/easybuilders/easybuild-framework/issues/2388/events","html_url":"https://github.com/easybuilders/easybuild-framework/pull/2388","id":293169204,"number":2388,"title":"Add -ftree-vectorize to defaultopt='-O2' for 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Intel auto-vectorizes at -O2 but not at -O1, and GCC\r\nauto-vectorizes at -O3 but not at -O2 this makes it consistent."},"comment":{"url":"https://api.github.com/repos/easybuilders/easybuild-framework/issues/comments/373139206","html_url":"https://github.com/easybuilders/easybuild-framework/pull/2388#issuecomment-373139206","issue_url":"https://api.github.com/repos/easybuilders/easybuild-framework/issues/2388","id":373139206,"user":{"login":"boegel","id":620876,"avatar_url":"https://avatars1.githubusercontent.com/u/620876?v=4","gravatar_id":"","url":"https://api.github.com/users/boegel","html_url":"https://github.com/boegel","followers_url":"https://api.github.com/users/boegel/followers","following_url":"https://api.github.com/users/boegel/following{/other_user}","gists_url":"https://api.github.com/users/boegel/gists{/gist_id}","starred_url":"https://api.github.com/users/boegel/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/boegel/subscriptions","organizations_url":"https://api.github.com/users/boegel/orgs","repos_url":"https://api.github.com/users/boegel/repos","events_url":"https://api.github.com/users/boegel/events{/privacy}","received_events_url":"https://api.github.com/users/boegel/received_events","type":"User","site_admin":false},"created_at":"2018-03-14T19:03:56Z","updated_at":"2018-03-14T19:03:56Z","author_association":"OWNER","body":"@bartoldeman As discussed during the EasyBuild conf call today:\r\n\r\n* Can you enhance this to also use `-fno-math-errno` by default, since that doesn't impact floating-point accuracy? Once you did, I'll look into rebuilding CP2K 5.1 with `foss/2018a` on top of this on Haswell & Skylake.\r\n\r\n* Do we need to take similar measures for Clang & PGI, or do they vectorise already by default at `-O2`? (cc @victorusu, @geimer)?\r\n\r\n* For changing the `loose` and or `veryloose` toolchain options, please follow up in a separate PR"}}
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