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CommunityData:Hyak tutorial
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=== Solving common mox node woes === ==== I'm getting errors about not being able to access the Internet from my node ==== Only machines using the build_machine profile have Internet access. You can install new software using a build node and it'll be immediately available on other nodes. ==== It looks like there are no nodes available? ==== # Try the int_machine # Try a shorter lease time. When you check out an interactive node with <code>any_machine</code>, for example, you're essentially leasing it for some amount of time, and if that time overlaps with a scheduled Hyak maintenance, your command will hang in the terminal. To change the lease time, first see the contents of our alias command by typing <code>which <node-alias></code>, i.e. <code>which any_machine</code>, and you'll see a <code>--time=$walltime</code> flag. <code>echo $walltime</code> will tell you that current walltime is a large number, like 200:00:00 -- 200 hours! Copy-paste the alias contents (starting with srun...., no single-quotes) and set the time to something smaller. # Check ourjobs to see who is using the other nodes, and ask on the irc channel to see if anyone can free up a node. ==== My job on int_machine is getting killed, or doesn't have enough memory ==== When you request an int_machine with srun, the default is 24G. Try a higher number. Technically the max is 240G but that would mean no one else in the group can have any memory if they need to access an int_machine....so ask for no more than 216G unless you're able to vacate the node right away if asked. ==== My job is running out of time and I'd like to add more ==== {{forthcoming}}
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