In the OpenCL-code, you have run-time and compile-time of the C-code. It is very important to make this clear when you talk about compile-time of the kernel as this can be confusing. Compile-time of the kernel is at run-time of the software after the compute-devices have been queried. The OpenCL-compiler can make better optimised code
Basic concepts: Function Qualifiers Read More »
Intel, AMD and NVidia have all written implementations of the Black-Scholes algorithm for their devices. Intel has described a kernels in their OpenCL optimisation-document (page 28 and further) with 3 random factors as input: S, K and T, and two configuration-constants R and V. NVidia is easy to compare to Intel’s, while AMD chose to write down the
Black-Scholes mixing on SandyBridge, Radeon and Geforce Read More »
HTML5 has the future, now Flash and Silverlight are abandoning the market to make the way free for HTML5-video. There is one big problem and that is that it is hard to protect the content – before you know the movie is on the free market. DRM is only a temporary solution and many times
OpenCL potentials: Watermarked media for content-protection Read More »
This article will be of interest if you don’t want to read the whole new specifications [PDF] for OpenCL 1.2. As always, feedback will be much appreciated. After many meetings with the many members of the OpenCL task force, a lot of ideas sprouted. And every 17 or 18 months a new version comes out of OpenCL to
Differences from OpenCL 1.1 to 1.2 Read More »
Typos are a programmers worst nightmare, as they are bad for concentration. The code in your head is not the same as the code on the screen and therefore doesn’t have much to do with the actual problem solving. Code highlighting in the IDE helps, but better is to use the actual OpenCL compiler without
Basic Concepts: online kernel compiling Read More »
Disclaimer: I am not a lawyer and below is my humble opinion only. The post is for insights only, not for legal matters. GPL was always a protection that somebody or some company does not run away with your code and makes the money with it. Or at least force that improvements get back into
Kernels and the GPL. Are we safe and linking? Read More »
In the series Basic Concepts I try to give an alternative description to what is said everywhere else. This time my eye fell on alternative convenience methods in two cases which were introduced there to be nice to devs with i.e. C/C++ and/or graphics backgrounds. But I see it explained too often from the convenience functions and
Basic Concepts: OpenCL Convenience Methods for Vector Elements and Type Conversions Read More »
August 2012: article has been completely rewritten and updated. For driver-specific issues, please refer to this article. Want to have both your GTX and Radeon working as OpenCL-devices under Linux? The bad news is that attempts to get Radeon as a compute device and the GTX as primary all failed. The good news is that
Installing both NVidia GTX and AMD Radeon on Linux for OpenCL Read More »
This is the second in the series “OpenCL potentials“. I chose this industry because it is the finest example where you are always late, even if you were first. So it always must be faster if you want to make the better analyses. Before I started StreamHPC I worked for an investment-company, and one of the
OpenCL Potentials: Investment-industry Read More »
The AMD OpenCL coding competition seems to be Windows 7 64bit only. So if you are on another version of Windows, OSX or (like me) on Linux, you are left behind. Of course StreamHPC supports software that just works anywhere (seriously, how hard is that nowadays?), so here are the instructions how to enter the competition
AMD OpenCL coding competition Read More »