[gmx-users] GPU warnings

[Szilárd Páll]

Thomas & Albert,

We are unable to reproduce the issue on FC 17 with glibc 2.15-58 and gcc
4.7.2.

Please try to update your packages (you should have updates available for
glibc), try recompiling with the latest 4.6 code and report back whether
you succeed.

Cheers,

--
Szilárd


On Fri, Nov 16, 2012 at 4:31 PM, Szilárd Páll <szilard.pall at cbr.su.se>wrote:

> Hi Albert,
>
> Apologies for hijacking your thread. Do you happen to have Fedora 17 as
> well?
>
> --
> Szilárd
>
>
>
> On Sun, Nov 4, 2012 at 10:55 AM, Albert <mailmd2011 at gmail.com> wrote:
>
>> hello:
>>
>>  I am running Gromacs 4.6 GPU on a workstation with two GTX 660 Ti (2 x
>> 1344 CUDA cores), and I got the following warnings:
>>
>> thank you very much.
>>
>> ---------------------------**messages----------------------**
>> -------------
>>
>> WARNING: On node 0: oversubscribing the available 0 logical CPU cores per
>> node with 2 MPI processes.
>>          This will cause considerable performance loss!
>>
>> 2 GPUs detected on host boreas:
>>   #0: NVIDIA GeForce GTX 660 Ti, compute cap.: 3.0, ECC:  no, stat:
>> compatible
>>   #1: NVIDIA GeForce GTX 660 Ti, compute cap.: 3.0, ECC:  no, stat:
>> compatible
>>
>> 2 GPUs auto-selected to be used for this run: #0, #1
>>
>> Using CUDA 8x8x8 non-bonded kernels
>> Making 1D domain decomposition 1 x 2 x 1
>>
>> * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING *
>> We have just committed the new CPU detection code in this branch,
>> and will commit new SSE/AVX kernels in a few days. However, this
>> means that currently only the NxN kernels are accelerated!
>> In the mean time, you might want to avoid production runs in 4.6.
>>
>> --
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>
>