{"action":"opened","issue":{"url":"https://api.github.com/repos/jhcepas/eggnog-mapper/issues/82","repository_url":"https://api.github.com/repos/jhcepas/eggnog-mapper","labels_url":"https://api.github.com/repos/jhcepas/eggnog-mapper/issues/82/labels{/name}","comments_url":"https://api.github.com/repos/jhcepas/eggnog-mapper/issues/82/comments","events_url":"https://api.github.com/repos/jhcepas/eggnog-mapper/issues/82/events","html_url":"https://github.com/jhcepas/eggnog-mapper/issues/82","id":298706640,"number":82,"title":"Maximum number of active queries in server mode, memory behavior","user":{"login":"gregmedlock","id":6519833,"avatar_url":"https://avatars1.githubusercontent.com/u/6519833?v=4","gravatar_id":"","url":"https://api.github.com/users/gregmedlock","html_url":"https://github.com/gregmedlock","followers_url":"https://api.github.com/users/gregmedlock/followers","following_url":"https://api.github.com/users/gregmedlock/following{/other_user}","gists_url":"https://api.github.com/users/gregmedlock/gists{/gist_id}","starred_url":"https://api.github.com/users/gregmedlock/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gregmedlock/subscriptions","organizations_url":"https://api.github.com/users/gregmedlock/orgs","repos_url":"https://api.github.com/users/gregmedlock/repos","events_url":"https://api.github.com/users/gregmedlock/events{/privacy}","received_events_url":"https://api.github.com/users/gregmedlock/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-02-20T18:49:16Z","updated_at":"2018-02-20T18:49:16Z","closed_at":null,"author_association":"NONE","body":"I am trying to optimize emapper for use on an HPC cluster, so I'm trying to figure out the best use of single/multiple servers and separate query instances.\r\n\r\nI noticed when starting an emapper server on a node with a single core that only one query could be active at any given time (e.g. If I generate 10 separate nodes, each of which call the server with a single fasta file as input, only 1 runs at a time).\r\n\r\nSo, a few questions that will help me develop a strategy for determining the # of servers to launch and memory/cores to allocate given my cluster constraints:\r\n1. Is there a 1:1 mapping of number of active queries:number of cores?\r\n2. When running in server mode, what are the memory demands on processes that are querying the server? E.g. if I allocate 150GB of RAM to my server, do I need to allocate an equivalent amount to the nodes running the query jobs, or can I get away with much less?\r\n3. Do memory demands change for a server based on the number of concurrent queries? e.g. Do I need to allocate substantially more memory for a server handling more than one active query at a time?\r\n\r\nThanks for any guideance you can provide."}}
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