[CentOS] CentOS 7, container question

Mon May 23 18:49:03 UTC 2016
m.roth at 5-cent.us <m.roth at 5-cent.us>

Mark Haney wrote:
> I've been wracking my brain, but for the life of me can't recall the exact
> program name, but back when I managed a HPCC, there was a tool that would
> let you restrict a running process to X number of CPUs/Cores natively.  I
> keep thinking it was MPC, but nothing googles on that.  Regardless, that
> might be a better way of running Sybase, as a container may not be beefy
> enough to  handle the load Sybase is likely to generate.
Yeah, mpich, I think - one of my users uses that; on our other clusters,
we've been using torque, though we're slowly moving to slurm.

I agree with you though, I don't know that doing it that way will work - I
think Sybase *looks* at the number of cores it can see, probably some of
the license info it uses.

> On Mon, May 23, 2016 at 10:51 AM, <m.roth at 5-cent.us> wrote:
>> Hi, folks,
>>    We would like to run a container on a server, the reason being the
>> of a Sybase license (it's by core), and what we can afford is a 4-core
>> license. Now, the server's a nice Dell w/ 32 cores, so, ideally, what
>> we want to do is set up containers, then, in one container, *only* have
>> it see 4 cores, while the rest of the server, including (possibly)
>> other containers, can see the other 28. The first try seems to have
>> disabled *all* the cores other than those four.
>>    Is it possible to do what we want, and if so, some pointers would be
>> most appreciated.
>>              mark
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