[gmx-users] hardware problem of GPU?

[Mark Abraham]

This is not a hardware issue. See
http://www.gromacs.org/Documentation/Acceleration_and_parallelization#Heterogenous_parallelization.3a_using_GPUs

Mark


On Wed, Jun 11, 2014 at 1:09 PM, Albert <mailmd2011 at gmail.com> wrote:

> Hello Mark:
>
> I contact with my GPU workstation supplier and they said the following:
>
> As mentioned we did all the hardware settings to enable SLI:
>
> 1)The graphiccards are connected with the SLI bridge.
>
> 2)Additionaly the SLI settings have to be configured in the Nvidia driver
> as follows:
>
> Nvidia Tool: http://wiki.ubuntuusers.de/nvidia-settings <
> http://wiki.ubuntuusers.de/nvidia-settings>
>
> SLI Settings: ftp://download.nvidia.com/XFree86/Linux-x86/177.68/
> README/chapter-25.html <ftp://download.nvidia.com/
> XFree86/Linux-x86/177.68/README/chapter-25.html>
>
> Please make sure that these settings work correctly.
>
> We don't know what you mean with "one rank". Do you mean the PCIe slots?
> These slots have to be enabled in the BIOS settings and we enabled all the
> PCIe slots.
>
> The hardware settings were enabled for SLI when we delivered the
> workstations. When we tested the workstations before delivery, SLI was
> working. If you want we can controll all the hardware settings to make
> sure, that SLI is still enabled in the hardware. Please contact us for
> this, a technician can control all the hardware settings with you.
>
>
> thank you very much.
>
> Albert
>
>
>
>
> On 06/07/2014 02:20 AM, Mark Abraham wrote:
>
>> The Nodes column has the vakue one. It is a poor name, but it means there
>> is only one rank, and each PP rank can only give work to one GPU. You need
>> to arrange for a second rank, but first read the setup phase of the log
>> file for clues on what is going on, and
>> http://www.gromacs.org/Documentation/Acceleration_and_parallelization
>>
>
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