From: Norman Geist (norman.geist_at_uni-greifswald.de)
Date: Thu Dec 12 2013 - 01:05:22 CST
Jerome,
as far as I know, without rewriting the NAMD code, you can't use it with AMD(ATI) GPUs. NAMD is written in CUDA which belongs to Nvidia. AMD cards won't run CUDA code. A language both types of GPUs work with is openCl. But CUDA is faster than openCl on Nvidia GPUs. So there can't barely be a person with experience in running namd on GPUs other than Nvidia.
Norman Geist.
> -----Ursprüngliche Nachricht-----
> Von: owner-vmd-l_at_ks.uiuc.edu [mailto:owner-vmd-l_at_ks.uiuc.edu] Im
> Auftrag von Jérôme Hénin
> Gesendet: Mittwoch, 11. Dezember 2013 18:31
> An: vmd
> Betreff: vmd-l: AMD vs. nvidia support
>
> Hi everyone,
>
> Traditionally I used to favor nvidia GPUs over AMD for running VMD
> under Linux, because the drivers were "better" (that is, they ran with
> some glitches, but ran nonetheless). The landscape seems to be evolving
> these days, and nvidia has notoriously antagonized the Linus crowd (or
> was that Linux?) for its lack of cooperation, while AMD has been more
> forthcoming. That was mostly a problem with open source support, but I
> wonder if that also reflects in the quality of the proprietary drivers.
>
> So, it would be great to hear about the recent experiences of some
> VMD/Linux users with AMD and nvidia support - both in terms of features
> and performance.
>
> Thanks,
> Jerome
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