The thread has somewhat been branched for the RAM requirements. Any useful comments on the #2-#4? I can probably summarize this by running over all compute nodes with scontrol show host, but that may not be too efficient...
On 25.04.2013, at 17:28, Mario Kadastik <[email protected]> wrote: > > Hi, > > I'm trying to get an overview of the state of the cluster. What I'd really > like to know is for example: > > 1) compute nodes online > 2) compute cores online > 3) compute cores allocated > 4) distribution of job sizes currently running (and queued possibly) > 5) list of nodes that are down/draining and reason > > out of those #1 and #5 can be gotten from sinfo command with sinfo -Nle -p > main, which shows nodes and their states with reasons. > > However I cannot find right now quickly how to find out how many cores in > total are online (in theory it's nodes up * cpu count / node summed for each > node type) and even more crucial is how many cores are actually used and by > what size jobs. Today I was really tearing my hair out as 99% of the time we > use single core jobs and on my ca 4300 cores I only saw ca 1800 jobs with > 6000 in queue. As it came out a user had submitted 5 jobs with subtasks. Four > had 100 subtasks and one had 2000 nicely accounting for the missing jobs. > However I would really appreciate some summary view of the cluster. Is it > already available in sinfo, sstat, scontrol commands? If not, does anyone > have a good script that gathers the info together efficiently and lists it. > > It'd have to be text only as all nodes are headless and I'd prefer to get the > overview in a nice summary in shell. > > Thanks, > > Mario Kadastik, PhD > Researcher > > --- > "Physics is like sex, sure it may have practical reasons, but that's not why > we do it" > -- Richard P. Feynman Mario Kadastik, PhD Researcher --- "Physics is like sex, sure it may have practical reasons, but that's not why we do it" -- Richard P. Feynman
