{"action":"created","issue":{"url":"https://api.github.com/repos/ipython/ipython/issues/4395","labels_url":"https://api.github.com/repos/ipython/ipython/issues/4395/labels{/name}","comments_url":"https://api.github.com/repos/ipython/ipython/issues/4395/comments","events_url":"https://api.github.com/repos/ipython/ipython/issues/4395/events","html_url":"https://github.com/ipython/ipython/issues/4395","id":21161181,"number":4395,"title":"%%px and %px commands take long time to run, outputing nothing","user":{"login":"carlding","id":5710489,"avatar_url":"https://avatars.githubusercontent.com/u/5710489?v=3","gravatar_id":"","url":"https://api.github.com/users/carlding","html_url":"https://github.com/carlding","followers_url":"https://api.github.com/users/carlding/followers","following_url":"https://api.github.com/users/carlding/following{/other_user}","gists_url":"https://api.github.com/users/carlding/gists{/gist_id}","starred_url":"https://api.github.com/users/carlding/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/carlding/subscriptions","organizations_url":"https://api.github.com/users/carlding/orgs","repos_url":"https://api.github.com/users/carlding/repos","events_url":"https://api.github.com/users/carlding/events{/privacy}","received_events_url":"https://api.github.com/users/carlding/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ipython/ipython/labels/needs-info","name":"needs-info","color":"ededed"},{"url":"https://api.github.com/repos/ipython/ipython/labels/parallel","name":"parallel","color":"ededed"}],"state":"closed","locked":false,"assignee":{"login":"minrk","id":151929,"avatar_url":"https://avatars.githubusercontent.com/u/151929?v=3","gravatar_id":"","url":"https://api.github.com/users/minrk","html_url":"https://github.com/minrk","followers_url":"https://api.github.com/users/minrk/followers","following_url":"https://api.github.com/users/minrk/following{/other_user}","gists_url":"https://api.github.com/users/minrk/gists{/gist_id}","starred_url":"https://api.github.com/users/minrk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/minrk/subscriptions","organizations_url":"https://api.github.com/users/minrk/orgs","repos_url":"https://api.github.com/users/minrk/repos","events_url":"https://api.github.com/users/minrk/events{/privacy}","received_events_url":"https://api.github.com/users/minrk/received_events","type":"User","site_admin":false},"milestone":null,"comments":6,"created_at":"2013-10-17T15:24:27Z","updated_at":"2015-09-11T16:39:40Z","closed_at":"2015-09-11T16:39:40Z","body":"I'm a newbie to ipython parallel computing. I have installed ipython 1.1.0 on both controller and 3 engines, and all engines can register themselves on the controller.\r\n\r\nI can get correct engine list after executing the following code on the controller:\r\nfrom IPython.parallel import Client\r\nrc = Client(profile='myprofile')\r\nrc.ids\r\n[3, 4, 5]\r\n\r\nHowever, when I execute the following code:\r\n%%px\r\nimport os\r\nimport socket\r\nprint(\"This is running in process with pid {0} on host '{1}'.\".format(os.getpid(), socket.gethostname()))\r\n\r\nthere is no output at all, and the code takes around 20 seconds to run. I have turned on the debug information on the engine side using the option --log-level=DEBUG. It seems that all the engines have received the requests.\r\n\r\nPlease enlighten me how I can solve this problem. Thanks.\r\n"},"comment":{"url":"https://api.github.com/repos/ipython/ipython/issues/comments/139593979","html_url":"https://github.com/ipython/ipython/issues/4395#issuecomment-139593979","issue_url":"https://api.github.com/repos/ipython/ipython/issues/4395","id":139593979,"user":{"login":"Carreau","id":335567,"avatar_url":"https://avatars.githubusercontent.com/u/335567?v=3","gravatar_id":"","url":"https://api.github.com/users/Carreau","html_url":"https://github.com/Carreau","followers_url":"https://api.github.com/users/Carreau/followers","following_url":"https://api.github.com/users/Carreau/following{/other_user}","gists_url":"https://api.github.com/users/Carreau/gists{/gist_id}","starred_url":"https://api.github.com/users/Carreau/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Carreau/subscriptions","organizations_url":"https://api.github.com/users/Carreau/orgs","repos_url":"https://api.github.com/users/Carreau/repos","events_url":"https://api.github.com/users/Carreau/events{/privacy}","received_events_url":"https://api.github.com/users/Carreau/received_events","type":"User","site_admin":false},"created_at":"2015-09-11T16:39:40Z","updated_at":"2015-09-11T16:39:40Z","body":"Closing as inactive. "}}