Advanced search

Message boards : Number crunching : Best Operating system

Author Message
Send message
Joined: 21 Mar 16
Posts: 508
Credit: 4,607,207,341
RAC: 0
Scientific publications
Message 45361 - Posted: 22 Nov 2016 | 11:34:11 UTC

What is the best operating system for the highest GPU utilization? I'm on Windows 10 right now and I have to stack two WU per gpu to get the utilization high enough. If the answer is windows xp, I don't own that, but is linux still just as good?

Send message
Joined: 20 Apr 15
Posts: 285
Credit: 1,102,216,607
RAC: 0
Scientific publications
Message 45363 - Posted: 22 Nov 2016 | 14:41:35 UTC
Last modified: 22 Nov 2016 | 14:42:55 UTC

From the postings, it seems that Windows 7 - 10 suffer from time lags caused by WDDM and require some intervention in order to get a somewhat good utilization. Running 2 WU per GPU is a good idea, amongst other things. See the posting

Zoltan has many installations and also one Linux System online, so he can probably answer that question firsthand.
I would love to see HCF1 protein folding and interaction simulations to help my little boy... someday.

Profile skgiven
Volunteer moderator
Project tester
Volunteer tester
Send message
Joined: 23 Apr 09
Posts: 3968
Credit: 1,995,359,260
RAC: 0
Scientific publications
Message 45376 - Posted: 24 Nov 2016 | 11:08:24 UTC - in response to Message 45363.
Last modified: 24 Nov 2016 | 11:10:35 UTC

The WDDM overhead is the biggest OS choice concern; it's impact is over 10% but closer to 20% for many. XP & Linux are the best operating systems as they don't have the WDDM overhead (which is larger with larger cards); the bigger your cards the more important to avoid the WDDM overhead.

The other main OS consideration is the generation of GPU you are using:
Your 1060 won't work on XP, so it's Linux or the 10%+ WDDM performance hit.
Note that the Pascal's wont work on Vista either.

Because SWAN_SYNC is enabled in the Windows app, XP is probably the fastest overall (for non Pascal cards), though running two tasks at a time on Linux might yield the same overall throughput.

As Linux is free and comes with Long Term Support (updates) it would be my first choice for crunching here. Others might prefer the familiarity of XP or want to dual boot.

- Opt out of Beta Tests
- Ask for Help

Post to thread

Message boards : Number crunching : Best Operating system