{"action":"created","issue":{"url":"https://api.github.com/repos/NVIDIA/caffe/issues/61","labels_url":"https://api.github.com/repos/NVIDIA/caffe/issues/61/labels{/name}","comments_url":"https://api.github.com/repos/NVIDIA/caffe/issues/61/comments","events_url":"https://api.github.com/repos/NVIDIA/caffe/issues/61/events","html_url":"https://github.com/NVIDIA/caffe/issues/61","id":114487322,"number":61,"title":"CUDA driver error bug with SLI only remedied by running CUDA Samples deviceQuery?","user":{"login":"alfredox10","id":11828765,"avatar_url":"https://avatars.githubusercontent.com/u/11828765?v=3","gravatar_id":"","url":"https://api.github.com/users/alfredox10","html_url":"https://github.com/alfredox10","followers_url":"https://api.github.com/users/alfredox10/followers","following_url":"https://api.github.com/users/alfredox10/following{/other_user}","gists_url":"https://api.github.com/users/alfredox10/gists{/gist_id}","starred_url":"https://api.github.com/users/alfredox10/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/alfredox10/subscriptions","organizations_url":"https://api.github.com/users/alfredox10/orgs","repos_url":"https://api.github.com/users/alfredox10/repos","events_url":"https://api.github.com/users/alfredox10/events{/privacy}","received_events_url":"https://api.github.com/users/alfredox10/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-11-01T19:31:28Z","updated_at":"2015-11-01T19:33:58Z","closed_at":null,"body":"I am consistently getting this error when trying to run a caffe detection from a cold boot:\r\n\r\n```\r\nWARNING: Logging before InitGoogleLogging() is written to STDERR\r\nF1101 13:01:53.909546  4274 common.cpp:156] Check failed: error == cudaSuccess (30 vs. 0)  unknown error\r\n*** Check failure stack trace: ***\r\nAborted (core dumped)\r\n```\r\n\r\nPreviously I spend almost 3 days debugging this issue and thought it was something with my drivers, however everything is configured correctly, and even caffe runtest passes all tests. My configuration is\r\nCaffe 0.13\r\nCUDA 7.5\r\nVideo Card Driver: 355.11\r\nUbuntu 14.04\r\nCuDNN v3\r\n\r\nThis issue however gets resolved by simply running the CUDA samples device query once and having it pass all tests. I simply navigate to:\r\nNVIDIA_CUDA-7.5_Samples/1_Utilities/deviceQuery/\r\nand run\r\nsudo ./deviceQuery\r\n\r\nAnother thing to note is the caffe device_query and make runtest don't work if I don't run the CUDA samples devieQuery at least once. This is weird, and I keep having to rerun it everytime I run my code, does anyone have any idea why or is this a bug?"},"comment":{"url":"https://api.github.com/repos/NVIDIA/caffe/issues/comments/152855368","html_url":"https://github.com/NVIDIA/caffe/issues/61#issuecomment-152855368","issue_url":"https://api.github.com/repos/NVIDIA/caffe/issues/61","id":152855368,"user":{"login":"smichalowski","id":3269993,"avatar_url":"https://avatars.githubusercontent.com/u/3269993?v=3","gravatar_id":"","url":"https://api.github.com/users/smichalowski","html_url":"https://github.com/smichalowski","followers_url":"https://api.github.com/users/smichalowski/followers","following_url":"https://api.github.com/users/smichalowski/following{/other_user}","gists_url":"https://api.github.com/users/smichalowski/gists{/gist_id}","starred_url":"https://api.github.com/users/smichalowski/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/smichalowski/subscriptions","organizations_url":"https://api.github.com/users/smichalowski/orgs","repos_url":"https://api.github.com/users/smichalowski/repos","events_url":"https://api.github.com/users/smichalowski/events{/privacy}","received_events_url":"https://api.github.com/users/smichalowski/received_events","type":"User","site_admin":false},"created_at":"2015-11-01T19:33:58Z","updated_at":"2015-11-01T19:33:58Z","body":"please read this:\r\n\r\nhttps://devtalk.nvidia.com/default/topic/749939/cuda-is-not-active-unless-i-run-it-with-sudo-privillages-/"}}