[RC5] Amazon EC2 Configuration for GPU Instance

Kees Nuyt k.nuyt at zonnet.nl
Thu Nov 13 03:37:56 EST 2014

Hi Mike,

Ah, that's interesting, I wasn't aware of that.


Kees Nuyt

On Thu, 13 Nov 2014 00:53:48 +0000, you wrote:

>Hi Kees,
>Most of them are virtual machines on headless systems.. except the one
>that Pete was using! The blurb on the AWS site says:-
>This family includes G2 instances intended for graphics and general
>purpose GPU compute applications.
>High Frequency Intel Xeon E5-2670 (Sandy Bridge) Processors
>High-performance NVIDIA GPU with 1,536 CUDA cores and 4GB of video memory
>On-board hardware video encoder designed to support up to eight
>real-time HD video streams (720p at 30fps) or up to four real-time FHD
>video streams (1080p at 30 fps).
>Support for low-latency frame capture and encoding for either the full
>operating system or select render targets, enabling high-quality
>interactive streaming experiences.'
>He said it gets about 420 Mk/sec. I am looking forward to when they
>offer AMD based systems :)
>Kind regards,
>On 12 November 2014 21:21, Kees Nuyt <k.nuyt at zonnet.nl> wrote:
>> On Wed, 12 Nov 2014 00:12:44 +0000, you wrote:
>>>Hi folks,
>>>Had some trouble submitting to the list earlier so this is attempt #2!
>>>As a long-time user of the client faithfully running RC5-72, I thought it
>>>would be 'fun' to see if I could make the client work on a GPU instance on
>>>Amazon Web Services (g2.2xlarge).
>>>Sadly I have zero experience of the actual mechanics behind how the client
>>>works, but have dutifully followed tutorials for installing CUDA 6.5,
>>>OpenCL, and PyOpenCL on the Ubuntu instance.
>>>Despite my best efforts, when I run the client (v2.9111.520 PRE Linux) I
>>>get the following:
>>>[Nov 11 18:05:30 UTC] No OpenCL platforms available!
>>>[Nov 11 18:05:30 UTC] Unable to initialize OpenCL.
>>>[Nov 11 18:05:30 UTC] *Break* Shutting down...
>>>I am possibly doing something rudimentarily stupid, or there may be some
>>>fundamental incompatibility here that I'm not aware of, but if anyone can
>>>point me in the right direction I'd be most grateful.
>> I think (most) Amazon instances you can rent are virtual
>> machines on headless systems.
>> Servers typically don't need any human interface devices, like
>> keyboard, mouse and screens. So, they don't contain any video
>> hardware, thus no GPU.
>> Even if the physical servers do have some video hardware, it's
>> probably rudimentory (no fast GPU) and not exposed to the
>> virtual machines.
>> Hope this helps...
>> --
>> Regards,
>> Kees Nuyt

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