Message boards :
Number crunching :
Running two different GPU's in one tower?
Message board moderation
Author | Message |
---|---|
Slavac Send message Joined: 27 Apr 11 Posts: 1932 Credit: 17,952,639 RAC: 0 |
Random question: As it appears I cannot run SLI with my current mobo setup, how would I go about utilizing two GTX 560's for S&H crunching? Also is it possible to run two dissimilar GPU's while still retaining normal functionality on a PC? For example running a 560 and a 580 on the same MOBO/PC while still retaining normal functionality in the PC as far as gaming/normal computer usage. Executive Director GPU Users Group Inc. - brad@gpuug.org |
Wiggo Send message Joined: 24 Jan 00 Posts: 34744 Credit: 261,360,520 RAC: 489 |
You don't need SLi to crunch, just run one run as the video card while running the other as a PhysX card (this is how 2 of my 3 pc's are set up). Cheers. |
Fred J. Verster Send message Joined: 21 Apr 04 Posts: 3252 Credit: 31,903,643 RAC: 0 |
Depending on the OS, you're using, you may have to extend the desktop, but running multiple and different GPUs, are not a problem. Mobo and chipset have to support this too. You even can run a ATI and a nVIDIA card and use them both for crunching. Since both ATI and nVIDIA* can do OpenCL. *Only the 400 and 500 series. Not sure about the 200 and/or older series. NVIDIA and OpenCL. |
Slavac Send message Joined: 27 Apr 11 Posts: 1932 Credit: 17,952,639 RAC: 0 |
|
Claggy Send message Joined: 5 Jul 99 Posts: 4654 Credit: 47,537,079 RAC: 4 |
You don't need SLi to crunch, just run one run as the video card while running the other as a PhysX card (this is how 2 of my 3 pc's are set up). Fit the GPU's, install driver's, (hopefully there is a driver that supports both GPU's) then make a cc_config.xml (with Notepad) with the following in it (Boinc will only use the most capable GPU by default): <cc_config> <options> <use_all_gpus>1</use_all_gpus> </options> </cc_config> Make sure it is saved as cc_config.xml with ANSI Encoding, now drop the file in your Boinc Data directory (the location is listed in your startup messages), and Restart Boinc, hopefully Boinc will detect and use both GPU's, if not, you may need to plug a monitor in and extend the desktop, or use a Dummy Plug, Claggy |
Theramansi Send message Joined: 25 Jun 04 Posts: 97 Credit: 39,577,723 RAC: 63 |
For a while, I had a PC set up to use both the onboard nvidia 8300 and a GTS450 card. It ran just fine for Seti. I finally had to disable the onboard because Milkyway requires double precision. That setup caused errors since there is no way to specify one project to use just a certain GPU, and another to use both. |
Slavac Send message Joined: 27 Apr 11 Posts: 1932 Credit: 17,952,639 RAC: 0 |
You don't need SLi to crunch, just run one run as the video card while running the other as a PhysX card (this is how 2 of my 3 pc's are set up). Thanks very much for that! Executive Director GPU Users Group Inc. - brad@gpuug.org |
Slavac Send message Joined: 27 Apr 11 Posts: 1932 Credit: 17,952,639 RAC: 0 |
You don't need SLi to crunch, just run one run as the video card while running the other as a PhysX card (this is how 2 of my 3 pc's are set up). It would appear that your instructions worked properly. Could someone confirm for me looking at these startup msgs? 5/26/2011 10:37:45 PM | | Starting BOINC client version 6.12.26 for windows_x86_64 5/26/2011 10:37:45 PM | | Config: use all coprocessors 5/26/2011 10:37:45 PM | | log flags: file_xfer, sched_ops, task 5/26/2011 10:37:45 PM | | Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.5 5/26/2011 10:37:45 PM | | Data directory: C:\ProgramData\BOINC 5/26/2011 10:37:45 PM | | Running under account BLDJD 5/26/2011 10:37:45 PM | | Processor: 6 AuthenticAMD AMD Phenom(tm) II X6 1100T Processor [Family 16 Model 10 Stepping 0] 5/26/2011 10:37:45 PM | | Processor: 512.00 KB cache 5/26/2011 10:37:45 PM | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 htt pni cx16 syscall nx lm svm sse4a osvw ibs skinit wdt page1gb rdtscp 3dnowext 3dnow 5/26/2011 10:37:45 PM | | OS: Microsoft Windows 7: Enterprise x64 Edition, Service Pack 1, (06.01.7601.00) 5/26/2011 10:37:45 PM | | Memory: 7.99 GB physical, 15.98 GB virtual 5/26/2011 10:37:45 PM | | Disk: 59.53 GB total, 7.81 GB free 5/26/2011 10:37:45 PM | | Local time is UTC -5 hours 5/26/2011 10:37:45 PM | | NVIDIA GPU 0: GeForce GTX 465 (driver version 26666, CUDA version 3020, compute capability 2.0, 994MB, 855 GFLOPS peak) 5/26/2011 10:37:45 PM | | NVIDIA GPU 1: GeForce GTX 560 Ti (driver version 26666, CUDA version 3020, compute capability 2.1, 993MB, 922 GFLOPS peak) Executive Director GPU Users Group Inc. - brad@gpuug.org |
Slavac Send message Joined: 27 Apr 11 Posts: 1932 Credit: 17,952,639 RAC: 0 |
|
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.