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KDE's KStars Working On OpenCL Support

KDE

Published on 27 July 2013 09:04 PM EDT
Written by Michael Larabel in KDE
3 Comments

As part of this year's Google Summer of Code, the KStars program is gaining support for OpenCL acceleration.

One of the KDE GSoC contributors has been recently working on allowing the KStars astronomy application to tap OpenCL GPGPU support.

For what's been worked on so far, the new algorithm dealing with one million skypoints when using OpenCL takes only 30ms where as the old algorithm took 3947ms.

While OpenCL can provide some very important performance gains when dealing with a massive amount of data points as with KStars, the problem found is that the OpenCL support on Linux is still rather sad. This shouldn't come as a big surprise though for frequent Phoronix readers that the current Linux OpenCL support leaves a lot to be desired unless using the binary AMD/NVIDIA drivers. "The problem is that OpenCL support is still pretty flaky in terms of support – at the moment, there are three complete implementations that support Linux, by Intel, AMD, and nVidia respectively, and they’re all proprietary. There’s some promising work for the future with OpenCL in Mesa and also with [pocl][1] (an LLVM-based CPU-only implementation), but it’s not ready yet."

More details on the KStars OpenCL work can be found in this blog post.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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