{"action":"opened","issue":{"url":"https://api.github.com/repos/xianyi/OpenBLAS/issues/599","labels_url":"https://api.github.com/repos/xianyi/OpenBLAS/issues/599/labels{/name}","comments_url":"https://api.github.com/repos/xianyi/OpenBLAS/issues/599/comments","events_url":"https://api.github.com/repos/xianyi/OpenBLAS/issues/599/events","html_url":"https://github.com/xianyi/OpenBLAS/issues/599","id":91697668,"number":599,"title":"optimizing sgemm_kernel routine in openblas","user":{"login":"vipin387","id":11977442,"avatar_url":"https://avatars.githubusercontent.com/u/11977442?v=3","gravatar_id":"","url":"https://api.github.com/users/vipin387","html_url":"https://github.com/vipin387","followers_url":"https://api.github.com/users/vipin387/followers","following_url":"https://api.github.com/users/vipin387/following{/other_user}","gists_url":"https://api.github.com/users/vipin387/gists{/gist_id}","starred_url":"https://api.github.com/users/vipin387/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vipin387/subscriptions","organizations_url":"https://api.github.com/users/vipin387/orgs","repos_url":"https://api.github.com/users/vipin387/repos","events_url":"https://api.github.com/users/vipin387/events{/privacy}","received_events_url":"https://api.github.com/users/vipin387/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-06-29T05:17:50Z","updated_at":"2015-06-29T05:17:50Z","closed_at":null,"body":"we profiled nnet-latgen-faster and found that 40% of execution time is taken by sgemm_kernel ,we optimized the routine through arm intrisics and had also used -vectorize and -O3 compilation option in the Makefile.arm,but there was no reduction in the execution time of the sgemm_kernel routine this was verified by the timestamps.Where as through the same options when we tested on sample standalone application the execution time reduced by three times.Any help would be appreciated"}}