All technical blog posts written by people of the Stream HPC team.
OpenCL is a member of a family of Host-Kernel programming language extensions. Others are CUDA, IMPC and DirectCompute/AMP. It lets itself define by a separate function or set of functions referenced to as kernel, which are prepared and launched by the host to run in parallel. Added to that are deeply integrated language-extensions for vectors, which
MPI in terms of OpenCL Read More »
Answer: No, or not yet. Apple tested Intel and AMD hardware for OSX, and not portable devices. Sorry for the false rumour; I’ll keep you posted. Update: It seems that OpenCL is on iOS, but only available to system-libraries and not for apps (directly). That explains part of the responsiveness of the system. At the
Is OpenCL coming to Apple iOS? Read More »
Reducing energy-consumption is “hot” After reading this article “Nvidia is losing on the HPC front” by The Inquirer which mixes up the demand for low-power architectures with the other side of the market: the demand for high performance. It made me think that it is not that clear there are two markets using the same technology.
Power to the Vector Processor Read More »
Edit: Aparapi has been open sourced and many issues have already been fixed and improved. If you have an AMD GPU/APU, you should try Aparapi. This software lets you write OpenCL-code in Java pretty high-level. The idea is that is sort of that it processes the Java intermediate code to search for loops and then create optimised
Aparapi: OpenCL in Java Read More »
If you buy a car, the first choice is not often the kind of fuel. You first select on the engine-properties, the looks, the interior, the brand and for sure the total cost of ownership. The costs can be a reason to choose for a certain type of fuel though. In the parallel computation world
Keep The Hardware Focus Read More »
ZiiLabs has been offering an early access program for OpenCL SDK since last year. This program was very selective in choosing developers and little news has been put on their webpage. Now they are planning to make their Android NDK a standard component, it’s a good time to ask them some questions. GPGPU-consultant Liad Weinberger
Exposing OpenCL on Android: Q&A with Tim Lewis of ZiiLabs Read More »
Time for some basic concepts of OpenCL. As I notice a growing number of visitors to this page, I notices I have actually not written much about coding and basics. One of the first steps of an OpenCL program is selecting hosts and devices. If you program for a tablet, which has one chip and
Basic concept: Hosts and devices Read More »
With highlighting for Gedit, I was happy to give you the convenience of a nice editor to work on OpenCL-files. But it seems that one of the most popular IDEs for C++-programming is Qt Creator. So you receive another free syntax highlighter. You need at least Qt Creator 2.1.0. The people of Qt have written everything you need
Qt Creator OpenCL Syntax Highlighting Read More »
If you read different types of manuals how to compile OpenCL software on Linux, then you can get dizzy of all the LD-parameters. Also when installing the SDKs from AMD, Intel and NVIDIA, you get different locations for libraries, header-files, etc. Now GPGPU is old-fashioned and we go for heterogeneous programming, the chances get higher
Install OpenCL on Debian, Ubuntu and Mint orderly Read More »
Translation available: Russian/Русский. (Let us know if you have translated this article too… And thank you!) Last year I explained the main differences between CUDA and OpenCL. Now I want to get some old (and partly) false stories around CUDA-vs-OpenCL out of this world. While it has been claimed too often that one technique is just
OpenCL vs CUDA Misconceptions Read More »