[slurm-users] SLURM heterogeneous jobs, a little help needed plz

[Goetz, Patrick G]

There are 2 kinds of system admins: can do and can't do.  You're a can 
do; his are can't do.

On 3/21/19 10:26 AM, Prentice Bisbal wrote:
> 
> On 3/20/19 1:58 PM, Christopher Samuel wrote:
>> On 3/20/19 4:20 AM, Frava wrote:
>>
>>> Hi Chris, thank you for the reply.
>>> The team that manages that cluster is not very fond of upgrading 
>>> SLURM, which I understand.
> 
> As a system admin who manages clusters myself, I don't understand this. 
> Our job is to provide and maintain resources for our users. Part of that 
> maintenance is to provide updates for security, performance, and 
> functionality (new features) reasons. HPC has always been a leading-edge 
> kind if field, so I feel this is even more important for HPC admins.
> 
> Yes, there can be issues caused by updates, but those can be with proper 
> planning: Have a plan to do the actual upgrade, have a plan to test for 
> issues, and have a plan to revert to an earlier version if issues are 
> discovered. This is work, but it's really not all that much work, and 
> this is exactly the work we are being paid to do as cluster admins.
> 
>  From my own experience, I find *not* updating in a timely manner is 
> actually more problematic and more work than keep on top of updates. For 
> example, where I work now, we still haven't upgraded to CentOS 7, and as 
> a result, many basic libraries are older than what many of the 
> open-source apps my users need require. As a result, I don't just have 
> to install application X, I often have to install up-to-date versions of 
> basic libraries like libreadline, libcurses, zlib, etc. And then there 
> are the security concerns...
> 
> Okay, rant over. I'm sorry. It just bothers me when I hear fellow system 
> admins aren't "very fond" of things that I think are a core 
> responsbility of our jobs. I take a lot of pride on my job.
> 
> -- 
> Prentice
> 
>