{"action":"created","issue":{"url":"https://api.github.com/repos/scipy/scipy/issues/4864","labels_url":"https://api.github.com/repos/scipy/scipy/issues/4864/labels{/name}","comments_url":"https://api.github.com/repos/scipy/scipy/issues/4864/comments","events_url":"https://api.github.com/repos/scipy/scipy/issues/4864/events","html_url":"https://github.com/scipy/scipy/issues/4864","id":75641955,"number":4864,"title":"enh: modified _differentialevolution.py to enable parallel evaluation of the objective function for the whole population","user":{"login":"pavelponomarev","id":10148418,"avatar_url":"https://avatars.githubusercontent.com/u/10148418?v=3","gravatar_id":"","url":"https://api.github.com/users/pavelponomarev","html_url":"https://github.com/pavelponomarev","followers_url":"https://api.github.com/users/pavelponomarev/followers","following_url":"https://api.github.com/users/pavelponomarev/following{/other_user}","gists_url":"https://api.github.com/users/pavelponomarev/gists{/gist_id}","starred_url":"https://api.github.com/users/pavelponomarev/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pavelponomarev/subscriptions","organizations_url":"https://api.github.com/users/pavelponomarev/orgs","repos_url":"https://api.github.com/users/pavelponomarev/repos","events_url":"https://api.github.com/users/pavelponomarev/events{/privacy}","received_events_url":"https://api.github.com/users/pavelponomarev/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/scipy/scipy/labels/scipy.optimize","name":"scipy.optimize","color":"207de5"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":38,"created_at":"2015-05-12T15:31:48Z","updated_at":"2015-06-26T16:38:33Z","closed_at":null,"body":"Hi,\r\n\r\nhttps://gist.github.com/pavelponomarev/20ea37324b219c7ed461/revisions\r\nThis file is modified to enable utilization of multiprocessing.Pool.map(func, iterable[, chunksize]) for parallel evaluation of the objective function.\r\n\r\nPlease review the code.  This is my first submission to github projects.\r\nIs introduction of a new optional parameter \"parall\" appropriate? Maybe some other better strategy can be used to enable vectorization of the objective function calculation?\r\n\r\nBR, Pavel\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/scipy/scipy/issues/comments/115748827","html_url":"https://github.com/scipy/scipy/issues/4864#issuecomment-115748827","issue_url":"https://api.github.com/repos/scipy/scipy/issues/4864","id":115748827,"user":{"login":"pavelponomarev","id":10148418,"avatar_url":"https://avatars.githubusercontent.com/u/10148418?v=3","gravatar_id":"","url":"https://api.github.com/users/pavelponomarev","html_url":"https://github.com/pavelponomarev","followers_url":"https://api.github.com/users/pavelponomarev/followers","following_url":"https://api.github.com/users/pavelponomarev/following{/other_user}","gists_url":"https://api.github.com/users/pavelponomarev/gists{/gist_id}","starred_url":"https://api.github.com/users/pavelponomarev/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pavelponomarev/subscriptions","organizations_url":"https://api.github.com/users/pavelponomarev/orgs","repos_url":"https://api.github.com/users/pavelponomarev/repos","events_url":"https://api.github.com/users/pavelponomarev/events{/privacy}","received_events_url":"https://api.github.com/users/pavelponomarev/received_events","type":"User","site_admin":false},"created_at":"2015-06-26T16:38:33Z","updated_at":"2015-06-26T16:38:33Z","body":"@sturlamolden `njobs` was deliberately ditinguished from the number of workers as this determines the sub-population size for aggressive mutation. This njobs can be bigger than the number of parallel workers. Perhaps, a name like `subpopsize` could be better."}}