Back with linux Mint 18.1

Questions and Answers : GPU applications : Back with linux Mint 18.1
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Profile ralphw
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Message 1871422 - Posted: 6 Jun 2017, 4:51:40 UTC

I'm working with Linux Mint 18.1, using the driver settings with Nvidia.

I have a GTX 1050 Ti (Pascal) and GTX 750 Ti (Maxwell)

The 375 drivers are supposed to recognize both, but don't seem to.


Eventually, I'll want to put the third Nvidia card back in.
nvidia-smi
Tue Jun  6 00:37:27 2017       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 375.66                 Driver Version: 375.66                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 105...  Off  | 0000:01:00.0     Off |                  N/A |
| 35%   33C    P0    35W /  75W |      0MiB /  4038MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   1  GeForce GTX 750 Ti  Off  | 0000:02:00.0     Off |                  N/A |
| 40%   26C    P0     1W /  38W |      0MiB /  2000MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID  Type  Process name                               Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+

When SETI starts, this is in the event log:
Tue 06 Jun 2017 12:30:42 AM EDT |  | CUDA: NVIDIA GPU 0: GeForce GTX 1050 Ti (driver version 375.66, CUDA version 8.0, compute capability 6.1, 4039MB, 3996MB available, 2274 GFLOPS peak)
Tue 06 Jun 2017 12:30:42 AM EDT |  | CUDA: NVIDIA GPU 1 (not used): GeForce GTX 750 Ti (driver version 375.66, CUDA version 8.0, compute capability 5.0, 2001MB, 1973MB available, 1606 GFLOPS peak)
Tue 06 Jun 2017 12:30:42 AM EDT |  | OpenCL: NVIDIA GPU 0: GeForce GTX 1050 Ti (driver version 375.66, device version OpenCL 1.2 CUDA, 4039MB, 3996MB available, 2274 GFLOPS peak)
Tue 06 Jun 2017 12:30:42 AM EDT |  | OpenCL: NVIDIA GPU 1 (ignored by config): GeForce GTX 750 Ti (driver version 375.66, device version OpenCL 1.2 CUDA, 2001MB, 1973MB available, 1606 GFLOPS peak)



Suggests for what to try next are welcome. Mint 18.1 seems a bit better behaved than 17.2 or 18.0,

But I'm not sure what is missing.
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Profile ralphw
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Message 1871426 - Posted: 6 Jun 2017, 5:17:53 UTC - in response to Message 1871422.  

All three VGA devices seem to show appropriately.

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c82 (rev a1)
02:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2)

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Message 1871524 - Posted: 7 Jun 2017, 7:11:42 UTC - in response to Message 1871426.  

Found what was missing:

The use_all_gpus setting in the cc_config.xml (/var/lib/boinc-client/cc_config.xml) was missing.

Now I'm using all of my cude cores:
<use_all_gpus>1</use_all_gpus>


Wed 07 Jun 2017 02:56:35 AM EDT | | CUDA: NVIDIA GPU 0: GeForce GTX 1050 Ti (driver version 375.66, CUDA version 8.0, compute capability 6.1, 4039MB, 3994MB available, 2274 GFLOPS peak)
Wed 07 Jun 2017 02:56:35 AM EDT | | CUDA: NVIDIA GPU 1: GeForce GTX 750 Ti (driver version 375.66, CUDA version 8.0, compute capability 5.0, 2001MB, 1973MB available, 1606 GFLOPS peak)
Wed 07 Jun 2017 02:56:35 AM EDT | | OpenCL: NVIDIA GPU 0: GeForce GTX 1050 Ti (driver version 375.66, device version OpenCL 1.2 CUDA, 4039MB, 3994MB available, 2274 GFLOPS peak)
Wed 07 Jun 2017 02:56:35 AM EDT | | OpenCL: NVIDIA GPU 1: GeForce GTX 750 Ti (driver version 375.66, device version OpenCL 1.2 CUDA, 2001MB, 1973MB available, 1606 GFLOPS peak)
Wed 07 Jun 2017 02:56:35 AM EDT | | [coproc] NVIDIA library reports 2 GPUs
[/code]
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Questions and Answers : GPU applications : Back with linux Mint 18.1


 
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