Message boards :
Number crunching :
Intel GPU Questions
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Author | Message |
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Terror Australis Send message Joined: 14 Feb 04 Posts: 1817 Credit: 262,693,308 RAC: 44 |
Hi All I've just upgraded to a i7-7700K, GTX1070, Win 10 Combo. I've enabled the Intel GPU, but I'm not quite sure of what to expect. When I first fired it up I was hit with a lot of inconclusives (which was a worry), fortunately most of these were resolved in my favour. It's taking around 45 to 50 minutes to crunch a unit (including VLARS) is this good, bad, or average ? I'm also getting units that just hang and go round in loops until BOINC auto aborts them. Most have been VLAR's but the has been the odd "normal" unit as well. Is this due to bad units or is there something I should be looking at in my settings ? Only running one unit at a time. I'm running the current "stable" Lunatics app with "out of the box" settings. Temperature is not a problem as the processor is liquid cooled and rarely cracks 50deg C. Would appreciate some advice from those who know what to expect. :) T.A. |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
Would appreciate some advice from those who know what to expect. :) Generally don't bother with the internal GPU. While it is faster than a single CPU core, you've got multiple CPU cores. The iGPU & CPU cores share thermal limits & memory Buses. And Intel's implementation of OpenCL (which is what's used for crunching) could probably best be described as "not great" (not very good would probably be more accurate). The end result is that running the iGPU will result in less work being done than if you just run the CPU cores. Maybe with future iGPU versions (the current ones are a huge improvement over the early implementations) their performance will offset the loss in CPU output, but that's quite some time away. I've just upgraded to a i7-7700K, GTX1070, Win 10 Combo. Run the AVX application for the CPU, the SoG application for the video card (with some command line settings to boost output) with no iGPU crunching & you'll pump out a lot of work. Grant Darwin NT |
Cliff Harding Send message Joined: 18 Aug 99 Posts: 1432 Credit: 110,967,840 RAC: 67 |
Would appreciate some advice from those who know what to expect. :) I agree, let the iGPU run the monitor(s). You might want to consider adding another 1070 to your rig. I don't buy computers, I build them!! |
betreger Send message Joined: 29 Jun 99 Posts: 11361 Credit: 29,581,041 RAC: 66 |
The consensus for a long time has been don't waste electricity crunching on on the iGPU. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
http://lunatics.kwsn.info/index.php/topic,1735.msg61151.html#msg61151 SETI apps news We're not gonna fight them. We're gonna transcend them. |
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