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

Open LLVM-Based Portable OpenCL Announced

Free Software

Published on 17 October 2011 12:21 PM EDT
Written by Michael Larabel in Free Software
5 Comments

There's a new open-source OpenCL project called "Portable OpenCL" that takes advantage of LLVM and this morning marks its first public announcement.

Carlos Sánchez de La Lama announced Portable OpenCL on the LLVM development list. The Portable OpenCL project is self-described as "an open source implementation of the OpenCL standard which can be easily adapted for new targets. One of the goals of the project is improving performance portability of OpenCL programs, avoiding the need for target-dependent manual optimizations. A "native" target is included, which allows running OpenCL kernels on the host (CPU)."

LLVM/Clang is commonly used by various OpenCL implementations and for Portable OpenCL it's used to "statically replicate the workitems and generate a bytecode of the actual code to be run, taking into account the WI synchronization (barriers)." The Portable OpenCL project is still a work-in-progress but has been under development going back to early 2011 (at least according to the project's code revision history).

The Portable OpenCL project is hosted on Launchpad.net. The ability to run OpenCL kernels on the CPU via an open-source stack is interesting. Previously it's been possible to do that through Intel's OpenCL SDK on Linux and the AMD Stream SDK. There's also been the ongoing work for OpenCL in open-source GPU drivers via Gallium3D and the Clover state tracker, which made some success this summer via Google's Summer of Code.

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. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  2. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  3. AMD Radeon R9 285 Tonga Performance On Linux
  4. Apotop Wi-Copy
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. EXT4 In Linux 3.18 Has Clean-ups, Bug Fixes
  2. Emacs 24.4 Has Built-In Web Browser, Improved Multi-Monitor Support
  3. NVIDIA's NVPTX Support For GCC Is Close To Being Merged
  4. KDE's KWin On Wayland Begins Using Libinput
  5. Khronos Releases OpenVX 1.0 Specification
  6. Linux Kernel Working Towards GNU11/C11 Compatibility
  7. Ubuntu 15.04 Is Codenamed After A Monkey: Vivid Vervet
  8. Following GCC, Clang Looks To Default To C11
  9. Users/Developers Threatening Fork Of Debian GNU/Linux
  10. Linux 3.18-rc1 Released One Week Early With Many Changes
Latest Forum Discussions
  1. HOPE: The Ease Of Python With The Speed Of C++
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Bye bye BSD, Hello Linux: A Sys Admin's Story
  4. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  5. AMD Is Restructuring Again, Losing 7% Of Employees
  6. Open-Source AMD Fusion E-350 Support Takes A Dive
  7. Upgrade to Kaveri, very slow VDPAU performance
  8. ChromeOS Drops Support For EXT2/EXT3/EXT4 File-Systems