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DanHansen@Denmark ![]() Send message Joined: 14 Nov 12 Posts: 194 Credit: 5,881,465 RAC: 0 ![]() |
Hi crunchers, Yes, we did it! We solved the case and are now running a server edition, crunching data with the GPU ;) And a test confirms it, we are running headless no kbd, no mouse and no monitor ;) Just needs UPS to hurry up! My second GT640 card for this system hasn't arrived yet. We can't confirm it running multiple GPU's headless before. Well, I do have a Zotac GT610 brand new and I hasn't got any plans for that one ;) Maybe I can test it using that card. Should run on the same config I guess. Actually Guy said something very clever some time ago: Does the following file exist? This was one of the issues ;) Here's the proof. BoincTasks showing the remotely controlled CLI based servers is running Boinc: The next and third test system. Using 4 GPU's.: Intel i5-3470K Industrial 2U Cooler from JAC Industrial 2U PSU ATX300W Asus Maximus VI Extreme Z87 Haswell 8Gb Kingston HyperX Genesis X2 Grey S. Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Project Headless CLI Linux Multiple GPU Boinc Servers Ubuntu Server 14.04.1 64bit Kernel 3.13.0-32-generic CPU's i5-4690K GPU's GT640/GTX750TI Nvidia v.340.29 BOINC v.7.2.42 ![]() |
DanHansen@Denmark ![]() Send message Joined: 14 Nov 12 Posts: 194 Credit: 5,881,465 RAC: 0 ![]() |
Hi, And running multiple GPU's on a headless CLI based system (Ubuntu Server) also works now: # nvidia-smi -a |grep Gpu Gpu : N/A Gpu : 59 C Gpu : N/A Gpu : 44 C Happy days ;) Project Headless CLI Linux Multiple GPU Boinc Servers Ubuntu Server 14.04.1 64bit Kernel 3.13.0-32-generic CPU's i5-4690K GPU's GT640/GTX750TI Nvidia v.340.29 BOINC v.7.2.42 ![]() |
DanHansen@Denmark ![]() Send message Joined: 14 Nov 12 Posts: 194 Credit: 5,881,465 RAC: 0 ![]() |
Ooops... The next and third test system. Using 4 GPU's.: Intel i5-4670K <-- Has to be the right CPU of course ;) Industrial 2U Cooler from JAC Industrial 2U PSU ATX300W Asus Maximus VI Extreme Z87 Haswell 8Gb Kingston HyperX Genesis X2 Grey S. Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Project Headless CLI Linux Multiple GPU Boinc Servers Ubuntu Server 14.04.1 64bit Kernel 3.13.0-32-generic CPU's i5-4690K GPU's GT640/GTX750TI Nvidia v.340.29 BOINC v.7.2.42 ![]() |
DanHansen@Denmark ![]() Send message Joined: 14 Nov 12 Posts: 194 Credit: 5,881,465 RAC: 0 ![]() |
The next and third test system. Using 4 GPU's.: Intel i5-4670K Industrial 2U Cooler from JAC Industrial 2U PSU ATX300W Asus Maximus VI Extreme Z87 Haswell 8Gb Kingston HyperX Genesis X2 Grey S. Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Asus GT640-1GD3-L PCIe 3.0 x16 Which CPU and why? Well, It's easy just to buy the best one. Then again, what's to gain? If you buy an i7-4770K CPU in Denmark you'll pay 50% more (in US a 100US$) than if you choose the i-5-4670K CPU. Both are Haswell and socket 1150 which should fit the motherboard of choice just fine ;) Here's a graph showing the difference in the 2 CPU's. This is why I choose the i5 processor instead of the i7. There's not much to gain. The i7 has 4 cores and 8 threads - the i5 has 4 cores and 4 threads. But there's not much to gain by the double number of threads. All it will do, is run twice the number of jobs at half the speed I guess!! Here's a comparison of the CPU I chose for test system 3 and the i7-4770K CPU: Intel Core i7-4770K advantages: In single-threaded programs, the microprocessor has 3% higher performance. In multi-threaded tasks, the processor has 19% better performance. Memory performance of the Intel i7-4770K microprocessor is better. 3%! That's it. You could even safe a lot more, choosing the i5-3570K which I'm using in test system 2 "halifax". But this will not be able to do the trick in this new test. A American guy asked me, "...why are you choosing those slow GPU's..?" He's referring to the Asus GT640! I told him, because these are the fastest Low Profile cards I can find. And one of the cards which endures heat better than most. (thanks to Mr. Zalster, Mr. Guy and Mr. Bil for teaching me about these matters) I am trying to build a semi professional system with 5-10 crunchers, which is not so pricey, doesn't use to much power and at the same time can be fitted in the corner of the room, behind a door. All power used is used for crunching. The systems are headless, without the use of mouse/kbd and monitors. This is why the industrial 2U ATX300W PSU I chose, should be able to supply both CPU and GPU's without any problems. Up until this point, I'm running 1CPU and 2 GPU's at this PSU. The 3 test will show if I'm right. Test system 1 "wellington" will now be installed the same way as test system 2 "halifax", but with Ubuntu the 12.04.4 update. The Nvidia site tells us that since the 12.04.4 update, .deb package/cuda doesn't work any more. Let's see about that. . Project Headless CLI Linux Multiple GPU Boinc Servers Ubuntu Server 14.04.1 64bit Kernel 3.13.0-32-generic CPU's i5-4690K GPU's GT640/GTX750TI Nvidia v.340.29 BOINC v.7.2.42 ![]() |
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