{"action":"created","issue":{"url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/4083","labels_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/4083/labels{/name}","comments_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/4083/comments","events_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/4083/events","html_url":"https://github.com/scikit-learn/scikit-learn/issues/4083","id":54021416,"number":4083,"title":"ImportError: /home/yifengli/.local/lib/python2.7/site-packages/sklearn/metrics/pairwise_fast.so:  undefined symbol: _intel_fast_memcpy","user":{"login":"yifeng-li","id":7120846,"avatar_url":"https://avatars.githubusercontent.com/u/7120846?v=3","gravatar_id":"","url":"https://api.github.com/users/yifeng-li","html_url":"https://github.com/yifeng-li","followers_url":"https://api.github.com/users/yifeng-li/followers","following_url":"https://api.github.com/users/yifeng-li/following{/other_user}","gists_url":"https://api.github.com/users/yifeng-li/gists{/gist_id}","starred_url":"https://api.github.com/users/yifeng-li/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/yifeng-li/subscriptions","organizations_url":"https://api.github.com/users/yifeng-li/orgs","repos_url":"https://api.github.com/users/yifeng-li/repos","events_url":"https://api.github.com/users/yifeng-li/events{/privacy}","received_events_url":"https://api.github.com/users/yifeng-li/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/scikit-learn/scikit-learn/labels/Bug","name":"Bug","color":"e10c02"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":14,"created_at":"2015-01-12T05:17:20Z","updated_at":"2015-02-07T08:14:40Z","closed_at":null,"body":"When I ran the random forests of sklearn, I got the following error:\r\n------------------------------------------\r\nException MemoryError: MemoryError() in 'sklearn.tree._tree.Tree._resize' ignored \r\nSegmentation fault\r\n------------------------------------------\r\n\r\nI thus tried to install the latest sklearn from github:\r\n--------------------------------------------------\r\ngit clone https://github.com/scikit-learn/scikit-learn.git\r\ncd scikit-learn\r\n(python setup.py build)\r\npython setup.py install --user\r\n-------------------------------------------------\r\n\r\nHowever, when I run \r\nfrom sklearn.ensemble import RandomForestClassifier\r\n\r\nI got the following error. It maybe a complier issue.\r\n-------------------------------------------------\r\nTraceback (most recent call last):\r\n  File \"./main_random_forests_debug.py\", line 14, in <module>\r\n    from sklearn.ensemble import RandomForestClassifier\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/ensemble/__init__.py\", line 7, in <module>\r\n    from .forest import RandomForestClassifier\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/ensemble/forest.py\", line 55, in <module>\r\n    from ..feature_selection.from_model import _LearntSelectorMixin\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/feature_selection/__init__.py\", line 20, in <module>\r\n    from .rfe import RFE\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/feature_selection/rfe.py\", line 16, in <module>\r\n    from ..cross_validation import _check_cv as check_cv\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/cross_validation.py\", line 31, in <module>\r\n    from .metrics.scorer import check_scoring\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/metrics/__init__.py\", line 29, in <module>\r\n    from . import cluster\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/metrics/cluster/__init__.py\", line 19, in <module>\r\n    from .unsupervised import silhouette_samples\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/metrics/cluster/unsupervised.py\", line 10, in <module>\r\n    from ..pairwise import pairwise_distances\r\n  File \"/home/yifengli/.local/lib/python2.7/site-packages/sklearn/metrics/pairwise.py\", line 25, in <module>\r\n    from .pairwise_fast import _chi2_kernel_fast, _sparse_manhattan\r\nImportError: /home/yifengli/.local/lib/python2.7/site-packages/sklearn/metrics/pairwise_fast.so: undefined symbol: _intel_fast_memcpy\r\n-------------------------------------------------------------"},"comment":{"url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/comments/73355127","html_url":"https://github.com/scikit-learn/scikit-learn/issues/4083#issuecomment-73355127","issue_url":"https://api.github.com/repos/scikit-learn/scikit-learn/issues/4083","id":73355127,"user":{"login":"amueller","id":449558,"avatar_url":"https://avatars.githubusercontent.com/u/449558?v=3","gravatar_id":"","url":"https://api.github.com/users/amueller","html_url":"https://github.com/amueller","followers_url":"https://api.github.com/users/amueller/followers","following_url":"https://api.github.com/users/amueller/following{/other_user}","gists_url":"https://api.github.com/users/amueller/gists{/gist_id}","starred_url":"https://api.github.com/users/amueller/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/amueller/subscriptions","organizations_url":"https://api.github.com/users/amueller/orgs","repos_url":"https://api.github.com/users/amueller/repos","events_url":"https://api.github.com/users/amueller/events{/privacy}","received_events_url":"https://api.github.com/users/amueller/received_events","type":"User","site_admin":false},"created_at":"2015-02-07T08:14:40Z","updated_at":"2015-02-07T08:14:40Z","body":"It would be nice to support mkl, but it is dangerous to support something we have no CI for... If we had enough dev resources, I guess we could probably get sponsored CI. But our CI expert @ogrisel is busy enough as is, I think ;)\r\nI don't know how tricky this is, but usually CI is pretty painful to get right.\r\n\r\nIf you care deeply and want to commit time, I'd say ask intel for a license for CI or away we could do it on travis / appveyor and then set it up ;)"}}