[Beowulf] zram usage

[Prentice Bisbal]

On 05/01/2014 07:31 AM, John Hearns wrote:
> I'm my eternal quest for more RAM  , has anyone used zram with HPC 
> applications?
> I suppose any gains would depend on how sparse /compressible the data 
> you are holding in RAM is.
>
> http://en.wikipedia.org/wiki/Zram
>
>

If you're on an eternal quest for more RAM, have you looked at using an 
NVMe SSD device, or an UltraDIMM? They may not perform as fast as RAM, 
but you can get a lot more space for less money, so the capacity may 
make up for the shortfall in performance.

Obligatory links:

http://en.wikipedia.org/wiki/NVMe

https://www-ssl.intel.com/content/www/us/en/it-management/intel-it-best-practices/advantages-of-solid-state-drives-for-design-computing-brief.html

http://www.extremetech.com/computing/175283-sandisk-announces-ulltra-dimms-terabytes-of-low-latency-flash-storage-directly-off-the-ram-channel

--
Prentice