Just a quick report, today I had the chance to run a single WU on a fresh OS installation.
OS: Kubuntu 19.10
CPU: AMD Ryzen 1700
RAM: 16GB (2* 8GB 2666MHz)
Running a single WU took 8,151 seconds to be completed.
Running 16 WUs together takes 12,500 seconds to complete a WU.
Nothing wrong with that, it makes sense, given the workload of the project. It is just curious to see the difference.
Reply
Quote
Running a single WU took 8,151 seconds to be completed.
Running 16 WUs together takes 12,500 seconds to complete a WU.
If that single work unit was the only thing you were running, then it was running effectively on its own core. The 16 WUs were running on virtual cores (two per real core).
So that is the difference you expect between a full core and a virtual core.
Reply
Quote
It's not only this. TN Gridi is very memory-intensive project
At the end of tihs thread (las 6-7 post) you can see the answer from Daniel ( a project's developer) to my specific question
http://gene.disi.unitn.it/test/forum_thread.php?id=135&sort_style=8&start=150
TN-Grid love high speed RAM
@Millenium, if you can, try to overclock RAM
Reply
Quote
Tried running only 2 WUs: 8,482 and 8,538 seconds.
A bit longer than just one but it can't be only due to multithread because they were only 2. Yup they were the only thing running, I left the PC alone.
Yeah it's not the first time I've heard about memory bandwidth being what bottleneck that project. I didn't save my times before I bought the second RAM DIMM, so no single channel data.
As for RAM frequency well, mine is a first gen Ryzen, 3000 would be like the max or so for it. So yeah I could try it, but nothing huge.
Reply
Quote