Hi All.

Just fitted a GTX570 card alongside my 560 and now only 1 is crunching, any ideas as to why?

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Can you post the first 20-30 lines of your BOINC startup log? That will give us all a better clue. I have a feeling though, that you need to create a cc_config file to force BOINC to use all GPU's. I'm betting that for some reason, the GTX570 is being excluded in favor of the GTX560. BOINC by default will only use the more capable card(s) in a multi-GPU setup, but I'm not sure why it would pick a 560 over a 570.

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13-Feb-12 6:22:15 PM Disk: 931.41 GB total, 866.36 GB free
13-Feb-12 6:22:15 PM Local time is UTC +8 hours
13-Feb-12 6:22:15 PM NVIDIA GPU 0 (not used): GeForce GTX 570 (driver version 28562, CUDA version 4010, compute capability 2.0, 1280MB, 1536 GFLOPS peak)
13-Feb-12 6:22:15 PM NVIDIA GPU 1: GeForce GTX 560 (driver version 28562, CUDA version 4010, compute capability 2.1, 1024MB, 726 GFLOPS peak)
13-Feb-12 6:22:15 PM SETI@home Found app_info.xml; using anonymous platform
13-Feb-12 6:22:15 PM SETI@home URL http://setiathome.berkeley.edu/; Computer ID 6120554; resource share 200
13-Feb-12 6:22:15 PM SETI@home General prefs: from SETI@home (last modified 21-Jun-2007 19:55:27)
13-Feb-12 6:22:15 PM SETI@home Computer location: home
13-Feb-12 6:22:15 PM General prefs: using separate prefs for home
13-Feb-12 6:22:15 PM Reading preferences override file
13-Feb-12 6:22:15 PM Preferences:
13-Feb-12 6:22:15 PM max memory usage when active: 7357.60MB
13-Feb-12 6:22:15 PM max memory usage when idle: 7357.60MB
13-Feb-12 6:22:15 PM max disk usage: 5.00GB
13-Feb-12 6:22:15 PM (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)
13-Feb-12 6:22:15 PM Using proxy info from GUI
13-Feb-12 6:22:15 PM Not using a proxy

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Can you post the first 20-30 lines of your BOINC startup log? That will give us all a better clue. I have a feeling though, that you need to create a cc_config file to force BOINC to use all GPU's. I'm betting that for some reason, the GTX570 is being excluded in favor of the GTX560. BOINC by default will only use the more capable card(s) in a multi-GPU setup, but I'm not sure why it would pick a 560 over a 570.

Yep, Spectrum will need a cc_config.xml with this in it:

<cc_config>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>

Boinc will only use the most capable GPU, the order of priority for Nvidia GPUs is:

1) compute capability
2) CUDA version
3) Available memory
4) Speed

Claggy

Yep, Spectrum will need a cc_config.xml with this in it:

<cc_config>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>

Boinc will only use the most capable GPU, the order of priority for Nvidia GPUs is:

1) compute capability
2) CUDA version
3) Available memory
4) Speed

Claggy

13-Feb-12 6:22:15 PM Disk: 931.41 GB total, 866.36 GB free
13-Feb-12 6:22:15 PM Local time is UTC +8 hours
13-Feb-12 6:22:15 PM NVIDIA GPU 0 (not used): GeForce GTX 570 (driver version 28562, CUDA version 4010, compute capability 2.0, 1280MB, 1536 GFLOPS peak)
13-Feb-12 6:22:15 PM NVIDIA GPU 1: GeForce GTX 560 (driver version 28562, CUDA version 4010, compute capability 2.1, 1024MB, 726 GFLOPS peak)

Yup, and there is the proof.

Spectrum, you will need to create a file called "cc_config.xml" with the 5 lines of code that Claggy posted, and place it in your BOINC
DATA directory. Restart BOINC, and the GTX570 should start crunching away!

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As shown in Spectrum's log and in Wikipedia on CUDA, the GTX 570 (based on the GF110 chip) has "compute capability 2.0", whereas the GF114-based GTX 560 has "compute capability 2.1".

That makes the 560 the "better" card, in BOINC's terms.

Thank you kindly, it worked a treat :)

13-Feb-12 6:45:37 PM Starting BOINC client version 6.10.56 for windows_x86_64
13-Feb-12 6:45:37 PM Config: use all coprocessors
13-Feb-12 6:45:37 PM log flags: file_xfer, sched_ops, task
13-Feb-12 6:45:37 PM Libraries: libcurl/7.19.7 OpenSSL/0.9.8l zlib/1.2.3
13-Feb-12 6:45:37 PM Data directory: C:\ProgramData\BOINC
13-Feb-12 6:45:37 PM Running under account Lou
13-Feb-12 6:45:37 PM Processor: 8 GenuineIntel Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz [Family 6 Model 42 Stepping 7]
13-Feb-12 6:45:37 PM Processor: 256.00 KB cache
13-Feb-12 6:45:37 PM Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 nx lm vmx smx tm2 popcnt aes pbe
13-Feb-12 6:45:37 PM OS: Microsoft Windows 7: Home Premium x64 Edition, Service Pack 1, (06.01.7601.00)
13-Feb-12 6:45:37 PM Memory: 7.98 GB physical, 15.97 GB virtual
13-Feb-12 6:45:37 PM Disk: 931.41 GB total, 866.35 GB free
13-Feb-12 6:45:37 PM Local time is UTC +8 hours
13-Feb-12 6:45:38 PM NVIDIA GPU 0: GeForce GTX 570 (driver version 28562, CUDA version 4010, compute capability 2.0, 1280MB, 1536 GFLOPS peak)
13-Feb-12 6:45:38 PM NVIDIA GPU 1: GeForce GTX 560 (driver version 28562, CUDA version 4010, compute capability 2.1, 1024MB, 726 GFLOPS peak)
13-Feb-12 6:45:38 PM SETI@home Found app_info.xml; using anonymous platform
13-Feb-12 6:45:38 PM SETI@home URL http://setiathome.berkeley.edu/; Computer ID 6120554; resource share 200
13-Feb-12 6:45:38 PM SETI@home General prefs: from SETI@home (last modified 21-Jun-2007 19:55:27)
13-Feb-12 6:45:38 PM SETI@home Computer location: home
13-Feb-12 6:45:38 PM General prefs: using separate prefs for home
13-Feb-12 6:45:38 PM Reading preferences override file
13-Feb-12 6:45:38 PM Preferences:
13-Feb-12 6:45:38 PM max memory usage when active: 7357.60MB
13-Feb-12 6:45:38 PM max memory usage when idle: 7357.60MB
13-Feb-12 6:45:38 PM max disk usage: 5.00GB
13-Feb-12 6:45:38 PM (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)
13-Feb-12 6:45:38 PM Using proxy info from GUI
13-Feb-12 6:45:38 PM Not using a proxy
13-Feb-12 6:45:38 PM SETI@home Restarting task 01oc11ad.29391.476.8.10.144.vlar_1 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Restarting task 01oc11ad.29391.476.8.10.143.vlar_1 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Restarting task 07oc11af.2902.38504.8.10.140.vlar_0 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Restarting task 07oc11af.2902.38504.8.10.138.vlar_1 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Restarting task 07oc11af.6328.2521.11.10.7_1 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Restarting task 01oc11ad.3699.3587.10.10.247.vlar_1 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Restarting task 07oc11af.13932.3748.13.10.9_1 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Restarting task 08oc11ac.5538.7601.7.10.77_1 using setiathome_enhanced version 610
13-Feb-12 6:45:38 PM SETI@home Restarting task 08oc11ac.5538.7601.7.10.74_1 using setiathome_enhanced version 610
13-Feb-12 6:45:38 PM SETI@home Restarting task 08oc11ac.5538.7601.7.10.69_1 using setiathome_enhanced version 610
13-Feb-12 6:45:38 PM SETI@home Restarting task 07oc11af.13932.17229.13.10.201_1 using setiathome_enhanced version 603
13-Feb-12 6:45:38 PM SETI@home Starting 08oc11ac.5538.7601.7.10.64_1
13-Feb-12 6:45:38 PM SETI@home Starting task 08oc11ac.5538.7601.7.10.64_1 using setiathome_enhanced version 610
13-Feb-12 6:45:38 PM SETI@home Starting 08oc11ac.5538.7601.7.10.61_1
13-Feb-12 6:45:38 PM SETI@home Starting task 08oc11ac.5538.7601.7.10.61_1 using setiathome_enhanced version 610
13-Feb-12 6:45:38 PM SETI@home Starting 07oc11ab.31576.18323.15.10.98_0
13-Feb-12 6:45:38 PM SETI@home Starting task 07oc11ab.31576.18323.15.10.98_0 using setiathome_enhanced version 610

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Better for Boinc but not BF3 :)

Just a little annoyed the 580 wouldn't fit in the case at 11 1/2" long

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