{"action":"created","issue":{"url":"https://api.github.com/repos/OpenDroneMap/OpenDroneMap/issues/354","repository_url":"https://api.github.com/repos/OpenDroneMap/OpenDroneMap","labels_url":"https://api.github.com/repos/OpenDroneMap/OpenDroneMap/issues/354/labels{/name}","comments_url":"https://api.github.com/repos/OpenDroneMap/OpenDroneMap/issues/354/comments","events_url":"https://api.github.com/repos/OpenDroneMap/OpenDroneMap/issues/354/events","html_url":"https://github.com/OpenDroneMap/OpenDroneMap/issues/354","id":169624324,"number":354,"title":"Increasing cores increases time for OpenSfM to run","user":{"login":"dakotabenjamin","id":1847818,"avatar_url":"https://avatars.githubusercontent.com/u/1847818?v=3","gravatar_id":"","url":"https://api.github.com/users/dakotabenjamin","html_url":"https://github.com/dakotabenjamin","followers_url":"https://api.github.com/users/dakotabenjamin/followers","following_url":"https://api.github.com/users/dakotabenjamin/following{/other_user}","gists_url":"https://api.github.com/users/dakotabenjamin/gists{/gist_id}","starred_url":"https://api.github.com/users/dakotabenjamin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dakotabenjamin/subscriptions","organizations_url":"https://api.github.com/users/dakotabenjamin/orgs","repos_url":"https://api.github.com/users/dakotabenjamin/repos","events_url":"https://api.github.com/users/dakotabenjamin/events{/privacy}","received_events_url":"https://api.github.com/users/dakotabenjamin/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":11,"created_at":"2016-08-05T14:49:23Z","updated_at":"2016-08-08T13:52:41Z","closed_at":"2016-08-08T13:49:03Z","body":"I was doing some benchmarking with a vagrant box to get a better idea of minimum processing/memory needs and I came across a strange phenomenon. As I increased the number of cores, the time it took to run OpenSfM did not decrease, but rather it increased significantly! I quickly plotted the data I was recording in R, you can see below: \r\n```\r\n> waterbury\r\n  cores   ram     sfm cmvs   pmvs meshing texturing georef  ortho\r\n1     2  2048      NA   NA     NA      NA        NA     NA     NA\r\n2     2  4096 4527.64 9.99 234.03   12.89    106.83 152.89     NA\r\n3     2  8192 4939.79 9.75 247.67   23.24    203.58 166.04     NA\r\n4     4  2048      NA   NA     NA      NA        NA     NA     NA\r\n5     4  4096 4285.10 9.39 143.89   24.11    208.76 167.70     NA\r\n6     4  8192 4239.33 9.12 164.81   24.68    228.53 171.16     NA\r\n7     8  4096 7418.40 9.13 109.91   28.38    241.05 178.02     NA\r\n8     8  8192 7880.79 9.32 112.07   26.44    223.98 171.59     NA\r\n9     8 12288 7796.81 9.26 113.91   23.17    185.17 163.55 228.17\r\n> f <- ggplot(waterbury, aes(cores, sfm))\r\n> f + geom_point(aes(size=(ram/1024))) + labs(title=\"OpenSfM Cost at Varying Cores\", x=\"Number of Cores\", y=\"OpenSfM Cost (seconds)\") + guides(size = guide_legend(title=\"RAM\"))\r\n```\r\n![waterbury_coressfm](https://cloud.githubusercontent.com/assets/1847818/17440284/fbfa8682-5af9-11e6-8185-7312ddf5da59.png)\r\n\r\n@paulinus I think you would be interested in this discovery"},"comment":{"url":"https://api.github.com/repos/OpenDroneMap/OpenDroneMap/issues/comments/238244690","html_url":"https://github.com/OpenDroneMap/OpenDroneMap/issues/354#issuecomment-238244690","issue_url":"https://api.github.com/repos/OpenDroneMap/OpenDroneMap/issues/354","id":238244690,"user":{"login":"pierotofy","id":1951843,"avatar_url":"https://avatars.githubusercontent.com/u/1951843?v=3","gravatar_id":"","url":"https://api.github.com/users/pierotofy","html_url":"https://github.com/pierotofy","followers_url":"https://api.github.com/users/pierotofy/followers","following_url":"https://api.github.com/users/pierotofy/following{/other_user}","gists_url":"https://api.github.com/users/pierotofy/gists{/gist_id}","starred_url":"https://api.github.com/users/pierotofy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pierotofy/subscriptions","organizations_url":"https://api.github.com/users/pierotofy/orgs","repos_url":"https://api.github.com/users/pierotofy/repos","events_url":"https://api.github.com/users/pierotofy/events{/privacy}","received_events_url":"https://api.github.com/users/pierotofy/received_events","type":"User","site_admin":false},"created_at":"2016-08-08T13:52:41Z","updated_at":"2016-08-08T13:52:41Z","body":"@dakotabenjamin it does, thanks!"}}
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