Hi Ayesha,
This is normal - it's a limitation in the drivers for GeForce cards. It
does not affect the running of calculations, simply the way it gets
reported by nvidia-smi. It's nothing to worry about.
All the best
Ross
On 3/31/14, 3:38 AM, "Ayesha Fatima" <ayeshafatima.69.gmail.com> wrote:
>Dear all,
>We have installed cuda 5.5 on our computer and compiled it successfully
>with amber12 and ambertools13. When we run the command pmemd.cuda, we can
>see that the simulation is running. however when we write nvidia-smi, we
>get the following output
>
>+------------------------------------------------------+
>
>| NVIDIA-SMI 331.49 Driver Version: 331.49
>|
>|-------------------------------+----------------------+------------------
>----+
>| 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 680 Off | 0000:01:00.0 N/A |
>N/A |
>| 32% 63C N/A N/A / N/A | 388MiB / 2047MiB | N/A
>Default |
>+-------------------------------+----------------------+------------------
>----+
>
>
>+-------------------------------------------------------------------------
>----+
>| Compute processes: GPU
>Memory |
>| GPU PID Process name
>Usage |
>|=========================================================================
>====|
>| 0 Not
>Supported |
>+-------------------------------------------------------------------------
>----+
>
>>From this we see that the GPU memory is not being used. What has gone
>>wrong
>here or what are we not doing so that the CUDA GPU works?
>
>Thank you
>Regards
>Ayesha
>University Malaya
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Received on Mon Mar 31 2014 - 10:00:02 PDT
