{"action":"created","issue":{"url":"https://api.github.com/repos/tensorflow/tensorflow/issues/17558","repository_url":"https://api.github.com/repos/tensorflow/tensorflow","labels_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/17558/labels{/name}","comments_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/17558/comments","events_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/17558/events","html_url":"https://github.com/tensorflow/tensorflow/issues/17558","id":303538300,"number":17558,"title":"Timeline showing replicated processes","user":{"login":"xilenteyex","id":10864603,"avatar_url":"https://avatars1.githubusercontent.com/u/10864603?v=4","gravatar_id":"","url":"https://api.github.com/users/xilenteyex","html_url":"https://github.com/xilenteyex","followers_url":"https://api.github.com/users/xilenteyex/followers","following_url":"https://api.github.com/users/xilenteyex/following{/other_user}","gists_url":"https://api.github.com/users/xilenteyex/gists{/gist_id}","starred_url":"https://api.github.com/users/xilenteyex/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xilenteyex/subscriptions","organizations_url":"https://api.github.com/users/xilenteyex/orgs","repos_url":"https://api.github.com/users/xilenteyex/repos","events_url":"https://api.github.com/users/xilenteyex/events{/privacy}","received_events_url":"https://api.github.com/users/xilenteyex/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":{"login":"bignamehyp","id":3474655,"avatar_url":"https://avatars2.githubusercontent.com/u/3474655?v=4","gravatar_id":"","url":"https://api.github.com/users/bignamehyp","html_url":"https://github.com/bignamehyp","followers_url":"https://api.github.com/users/bignamehyp/followers","following_url":"https://api.github.com/users/bignamehyp/following{/other_user}","gists_url":"https://api.github.com/users/bignamehyp/gists{/gist_id}","starred_url":"https://api.github.com/users/bignamehyp/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bignamehyp/subscriptions","organizations_url":"https://api.github.com/users/bignamehyp/orgs","repos_url":"https://api.github.com/users/bignamehyp/repos","events_url":"https://api.github.com/users/bignamehyp/events{/privacy}","received_events_url":"https://api.github.com/users/bignamehyp/received_events","type":"User","site_admin":false},"assignees":[{"login":"bignamehyp","id":3474655,"avatar_url":"https://avatars2.githubusercontent.com/u/3474655?v=4","gravatar_id":"","url":"https://api.github.com/users/bignamehyp","html_url":"https://github.com/bignamehyp","followers_url":"https://api.github.com/users/bignamehyp/followers","following_url":"https://api.github.com/users/bignamehyp/following{/other_user}","gists_url":"https://api.github.com/users/bignamehyp/gists{/gist_id}","starred_url":"https://api.github.com/users/bignamehyp/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bignamehyp/subscriptions","organizations_url":"https://api.github.com/users/bignamehyp/orgs","repos_url":"https://api.github.com/users/bignamehyp/repos","events_url":"https://api.github.com/users/bignamehyp/events{/privacy}","received_events_url":"https://api.github.com/users/bignamehyp/received_events","type":"User","site_admin":false}],"milestone":null,"comments":5,"created_at":"2018-03-08T16:15:34Z","updated_at":"2018-03-09T18:50:44Z","closed_at":"2018-03-09T15:18:08Z","author_association":"NONE","body":"### System information\r\n- **Have I written custom code (as opposed to using a stock example script provided in TensorFlow)**: No\r\n- **OS Platform and Distribution (e.g., Linux Ubuntu 16.04)**: Linux Ubuntu 16.04\r\n- **TensorFlow installed from (source or binary)**: source\r\n- **TensorFlow version (use command below)**: 1.6.0-rc1\r\n- **Python version**: 2.7\r\n- **Bazel version (if compiling from source)**: 0.11.0\r\n- **GCC/Compiler version (if compiling from source)**: 5.4\r\n- **CUDA/cuDNN version**: 9.1/7.0\r\n- **GPU model and memory**: Tesla k80 (11441MiB)\r\n- **Exact command to reproduce**:python cifar10_train.py\r\n\r\nYou can collect some of this information using our environment capture script:\r\n\r\nhttps://github.com/tensorflow/tensorflow/tree/master/tools/tf_env_collect.sh\r\n\r\nYou can obtain the TensorFlow version with\r\n\r\npython -c \"import tensorflow as tf; print(tf.GIT_VERSION, tf.VERSION)\"\r\n\r\n### Describe the problem\r\nI am running the standard CIPHAR example available in tensor-flow repository. I just added a few lines as suggested in this (https://github.com/tensorflow/tensorflow/issues/1824#issuecomment-225754659) by @prb12. If I look at the timeline created for this:\r\n<img width=\"1440\" alt=\"screen shot 2018-03-08 at 10 58 30 am\" src=\"https://user-images.githubusercontent.com/10864603/37161719-78b01972-22c1-11e8-98a1-fc5213711316.png\">\r\nI see two processes running exactly at the same time. Is this a bug in the timeline or am I missing something here ? The other explanation to me looks like these two processes are running simultaneously and sharing the GPU which according to my knowledge is non-trivial. If, these two processes are actually sharing the GPU is there some code or documentation to understand how its being done by tensor-flow ? Thanks a lot for any help \r\n\r\n### Source code / logs\r\ncifar10 example  : https://github.com/tensorflow/models/tree/master/tutorials/image/cifar10\r\nmy modified cifar10_train.py : https://gist.github.com/xilenteyex/bd8802d4baaf17acb8786ef0a9b60b7c "},"comment":{"url":"https://api.github.com/repos/tensorflow/tensorflow/issues/comments/371910289","html_url":"https://github.com/tensorflow/tensorflow/issues/17558#issuecomment-371910289","issue_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/17558","id":371910289,"user":{"login":"xilenteyex","id":10864603,"avatar_url":"https://avatars1.githubusercontent.com/u/10864603?v=4","gravatar_id":"","url":"https://api.github.com/users/xilenteyex","html_url":"https://github.com/xilenteyex","followers_url":"https://api.github.com/users/xilenteyex/followers","following_url":"https://api.github.com/users/xilenteyex/following{/other_user}","gists_url":"https://api.github.com/users/xilenteyex/gists{/gist_id}","starred_url":"https://api.github.com/users/xilenteyex/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/xilenteyex/subscriptions","organizations_url":"https://api.github.com/users/xilenteyex/orgs","repos_url":"https://api.github.com/users/xilenteyex/repos","events_url":"https://api.github.com/users/xilenteyex/events{/privacy}","received_events_url":"https://api.github.com/users/xilenteyex/received_events","type":"User","site_admin":false},"created_at":"2018-03-09T18:50:44Z","updated_at":"2018-03-09T18:50:44Z","author_association":"NONE","body":"@prb12 thanks a lot for the pointers. I will look into these."}}
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