GPU: Difference between revisions

Revision as of 08:18, 1 April 2010

Comments from the mailing list concerning GRASS and GPU parallelization:

As I understand it, CUDA is 100% dependent on the closed-source binary driver from nVidia and works on their video cards alone. Which is fine for today for people with nVidia hardware using their binary video card driver. If nVidia decides in a couple of years to stop supporting CUDA, your old card, your specific OS or distro, your OS or distro version+cpu type, or if they go out of business or are bought/sold to another company who is not interested, any code based on it becomes useless. For this reason code written for an open platform such as OpenCL, even if less advanced, seems to have a brighter long-term future. -- HB

Support for double precision floating point values must be retained for calculations which deal with positional data. For elevation data floating point precision may be enough.

The target version will be GRASS 7 (alias SVN trunk).

Revision as of 08:18, 1 April 2010 (view source) ⚠️HamishBowman (talk \| contribs) (→‎Further reading) ← Older edit		Revision as of 08:18, 1 April 2010 (view source) ⚠️HamishBowman (talk \| contribs) m (→‎Further reading) Newer edit →
Line 17:		Line 17:

	* http://www.hpcwire.com/offthewire/Khronos-Demonstrates-OpenCL-Momentum-at-SC09-70243307.html		* http://www.hpcwire.com/offthewire/Khronos-Demonstrates-OpenCL-Momentum-at-SC09-70243307.html


	* See the "'''Parallelization'''" category listing at the bottom of this page.		* See the "'''Parallelization'''" category listing at the bottom of this page.