{"action":"created","issue":{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/122","labels_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/122/labels{/name}","comments_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/122/comments","events_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/122/events","html_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/122","id":122999689,"number":122,"title":"Remove dependency on Boost.MPL","user":{"login":"BenjaminW3","id":8956583,"avatar_url":"https://avatars.githubusercontent.com/u/8956583?v=3","gravatar_id":"","url":"https://api.github.com/users/BenjaminW3","html_url":"https://github.com/BenjaminW3","followers_url":"https://api.github.com/users/BenjaminW3/followers","following_url":"https://api.github.com/users/BenjaminW3/following{/other_user}","gists_url":"https://api.github.com/users/BenjaminW3/gists{/gist_id}","starred_url":"https://api.github.com/users/BenjaminW3/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/BenjaminW3/subscriptions","organizations_url":"https://api.github.com/users/BenjaminW3/orgs","repos_url":"https://api.github.com/users/BenjaminW3/repos","events_url":"https://api.github.com/users/BenjaminW3/events{/privacy}","received_events_url":"https://api.github.com/users/BenjaminW3/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/labels/enhancement","name":"enhancement","color":"84b6eb"},{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/labels/WIP","name":"WIP","color":"EEAAAA"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-12-18T18:10:16Z","updated_at":"2015-12-21T12:12:41Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/pulls/122","html_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/122","diff_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/122.diff","patch_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/122.patch"},"body":"While trying to extend the testing infrastructure I found the need to test all accelerators (already done in the integration tests) but instantiated with many combinations of `TSize` and `TDim` types. (see `test/unit/acc/src/AccNameTest.cpp`)\r\nCurrently there are 7 Accelerators, which I wanted to test with 4 dimensionalities and 9 size types.\r\n`7 * 4 * 9 = 252` combinations (cartesian product)\r\nHowever, `Boost.MPL` is very limited in its capabilities and can by default only support up to 50 types in a list. Due to it's preprocessing and header generation nature one can manually generate headers supporting more elements but this is no solution that can be applied on user systems.\r\nTherefore, I replaced the usage of `Boost.MPL` with C++11 constructs. This decreases the compilation time, supports (theoretically) unlimited type list lengths and is easier to write and understand.\r\nThe current template meta programming constructs have been moved to a `meta` folder. Additionally tests have been added for most of the basic meta-programming functions."},"comment":{"url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/comments/166288888","html_url":"https://github.com/ComputationalRadiationPhysics/alpaka/pull/122#issuecomment-166288888","issue_url":"https://api.github.com/repos/ComputationalRadiationPhysics/alpaka/issues/122","id":166288888,"user":{"login":"erikzenker","id":341041,"avatar_url":"https://avatars.githubusercontent.com/u/341041?v=3","gravatar_id":"","url":"https://api.github.com/users/erikzenker","html_url":"https://github.com/erikzenker","followers_url":"https://api.github.com/users/erikzenker/followers","following_url":"https://api.github.com/users/erikzenker/following{/other_user}","gists_url":"https://api.github.com/users/erikzenker/gists{/gist_id}","starred_url":"https://api.github.com/users/erikzenker/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/erikzenker/subscriptions","organizations_url":"https://api.github.com/users/erikzenker/orgs","repos_url":"https://api.github.com/users/erikzenker/repos","events_url":"https://api.github.com/users/erikzenker/events{/privacy}","received_events_url":"https://api.github.com/users/erikzenker/received_events","type":"User","site_admin":false},"created_at":"2015-12-21T12:12:41Z","updated_at":"2015-12-21T12:12:41Z","body":"Woah, what a big commit. Its too much to have a look all in detail. There was nothing, I have seen and CI says okay."}}