1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Radeon Gallium3D Now Sort Of Works For OpenCL

AMD

Published on 06 March 2012 09:20 AM EST
Written by Michael Larabel in AMD
11 Comments

While AMD is behind the ball on supporting Radeon HD 7000 series hardware, they're finally beginning to catch-up with supporting OpenCL for GPGPU computing on their open-source Linux graphics driver with Gallium3D.

The Gallium3D Clover work has been a long-time coming (it began three years ago) by various open-source developers long before AMD hired Tom Stellard to work on the Radeon OpenCL support, among other work items. There's also been the GSoC OpenCL work and various other efforts.

Most recently, last month at FOSDEM, OpenCL support on Nouveau was shown off in an early state. The reverse-engineered NVIDIA driver was successfully executing an OpenCL kernel, but that support is currently not mainlined and still premature. AMD is finally joining this party with being able to compute a basic OpenCL example from their non-mainline Gallium3D driver changes.

Radeon OpenCL has been one of three open-source priorities for AMD and they've been talking about it since last year, but it's finally coming together.

Through Tom Stellard's Mesa repository and his clover-r600-master Git branch there's the basic bits needed to enable working OpenCL-Gallium3D support from the Radeon user-space side. You'll also need the latest Radeon DRM kernel bits for things to work well.

Tom's been working on clover-r600-master near-daily as reflected by the Git log, with the most recent work appearing just yesterday. This OpenCL work depends upon Clang/LLVM too. Stellard's code also builds upon the work done recently by Francisco Jerez for the OpenCL Nouveau support that was financed by the X.Org Foundation.

With this latest code, basic OpenCL functionality should be there for R600 Gallium3D on open-source. In particular, there's this opencl-example by Tom Stellard. Additional information on this early open-source OpenCL progress can be found via this blog post. Meanwhile, the AMD Catalyst Linux driver provides OpenCL support in full across all supported Radeon/FirePro hardware.

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 .
Latest Linux Hardware Reviews
  1. AMD Launches New FX CPUs, Cuts Prices On Existing Processors
  2. Preview: AMD's FX-9590 Eight-Core At Up To 5.0GHz On Linux
  3. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  4. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
Latest Linux Articles
  1. LLVM Clang 3.5 Brings Some Compiler Performance Improvements
  2. Ondemand vs. Performance CPU Governing For AMD FX CPUs On Linux 3.17
  3. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  4. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
Latest Linux News
  1. New Group Calls For Boycotting Systemd
  2. The Features To Find With The Imminent Release Of LLVM/Clang 3.5
  3. Borderlands 2 Is Coming To Linux
  4. The Witcher 2 Ups The Performance More & Works Around Catalyst Bug
  5. Running Gallium3D's LLVMpipe On The Eight-Core 5GHz CPU
  6. Trying Intel OpenCL On Linux For Video Encoding
  7. GSoC 2014 Yielded Some Improvements For Mesa/X.Org This Year
  8. webOS Lives On As LuneOS With New Release
  9. Marek Lands Radeon Gallium3D HyperZ Improvements
  10. Mozilla Firefox 32 Surfaces With HTML5, Developer Changes
Latest Forum Discussions
  1. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  2. nv and xorg.conf under Debian PPC
  3. AMD graphics doesn't work with AMD Catalyst drivers
  4. Best Radeon for a Power Mac G5?
  5. The dangers of Linux kernel development
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. AMD Releases UVD Video Decode Support For R600 GPUs
  8. SSD seems slow