[Clusterusers] Errors on fly

[Wm. Josiah Erikson]

I've changed MinRAM to 3GB. I think actually, on second thought, that 
4GB might prevent machines that only have 8GB from taking jobs when they 
should be able to. I'll watch and tweak as necessary.
Wow the cluster is getting hammered. Fun :)
     -Josiah


On 4/22/15 7:54 PM, Thomas Helmuth wrote:
> Ok, good, glad it's not something in Clojush doing the crashing! I'm 
> guessing somewhere in the range of 4GB would do the trick. So, let's 
> try that?
>
> On Wed, Apr 22, 2015 at 7:52 PM, Wm. Josiah Erikson 
> <wjens at hampshire.edu <mailto:wjens at hampshire.edu>> wrote:
>
>     I have rebooted compute-1-17. That should fix that. (Apologies to
>     Piper, who had a maxwell job running. You'll have to retry that one)
>
>     The other problem is that some nodes are actually out of memory
>     because of the insanely intensive rendering jobs that are running
>     on them. We could play with minimum free memory required to take
>     new jobs.... how much RAM do you think is necessary? Right now
>     it's set to 1GB. Maybe I should try changing it to 2GB or 4GB?
>         -Josiah
>
>
>
>     On 4/22/15 7:22 PM, Thomas Helmuth wrote:
>
>         Hi Josiah,
>
>         I just started my first runs on fly since the hard drive
>         switch. I'm getting some weird errors. The first is that every
>         run started on compute-1-17 crashed with the following message:
>
>         ====[2015/04/22 19:06:03 /J1504220051/T10/C10/thelmuth on
>         compute-1-17 ]====
>          /bin/sh: line 0: cd: /home/thelmuth/ClusteringBench/: Not a
>         directory
>          /bin/sh:
>         /home/thelmuth/Results/clustering-bench/determin-decim/ratio-0.25/replace-space-with-newline/tourney-7/logs/log9.txt:
>         Stale file handle
>          /bin/sh: line 0: cd:
>         /home/thelmuth/Results/clustering-bench/determin-decim/ratio-0.25/replace-space-with-newline/tourney-7/csv/:
>         Not a directory
>         ...
>
>         It sounds like 1-17 for some reason cannot access my homedir.
>         When I tried to SSH to compute-1-17, it asks for my password,
>         which it doesn't for other nodes. So, sounds like there's
>         something amiss there.
>
>         I had some other runs, it looks like all on rack 2 nodes, that
>         crashed printing the following to the output log files:
>
>         Java HotSpot(TM) 64-Bit Server VM warning: INFO:
>         os::commit_memory(0x00000007e5500000, 447741952, 0) failed;
>         error='Cannot allocate memory' (e\
>         rrno=12)
>         #
>         # There is insufficient memory for the Java Runtime
>         Environment to continue.
>         # Native memory allocation (malloc) failed to allocate
>         447741952 bytes for committing reserved memory.
>         # An error report file with more information is saved as:
>         # /home/thelmuth/ClusteringBench/hs_err_pid21904.log
>
>         This looks like an error we used to get with Java but I
>         haven't seen recently. I checked, and I don't think anything
>         has changed in our code regarding memory management.
>
>         Is it possible that one or both of these errors are caused by
>         something in the move, or an upgrade to tractor or something?
>         I can go back and look for similar errors to the second one to
>         see if we figured out what went wrong there.
>
>         Tom
>
>
>

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