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

AMD Optimizes Bitcoin Mining On R600 LLVM OpenCL

AMD

Published on 29 April 2013 04:45 PM EDT
Written by Michael Larabel in AMD
47 Comments

Earlier this month I wrote about Bitcoin Mining coming to the open-source Radeon Linux GPU driver. In the weeks since, Tom Stellard of AMD has made more improvements to the AMD R600 LLVM back-end that benefit the performance of Bitcoin mining.

The OpenCL/GPGPU stack of the open-source Radeon Gallium3D Linux graphics driver still is not as fast or feature-complete as the proprietary AMD Catalyst driver, but it's still being raised. Until earlier this month, the open-source AMD Radeon OpenCL support was only useful for running a few sample OpenCL demos but now the popular "bfgminer" Bitcoin mining application can handle the Gallium3D stack that uses a LLVM back-end for communicating with the Radeon HD 5000 series and beyond.

On Monday afternoon, Tom Stellard post a new set of patches that provide for bfgminer optimizations with the R600 LLVM back-end.

The patches that provide for Bitcoin mining optimizations on the Radeon open-source driver include 64-bit load/store support, a pattern for the SHA-256 Ma function, a change for the BFI_INT instruction, and support for expanding vector or/shl/srl/xor nodes.

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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. CMake 3.1 Brings Windows Additions, Target Compile Feature
  2. KDE Applications 14.12 Released
  3. Fedora 21 Released For POWER & AArch64 Hardware
  4. Elasticsearch & wxPython 3 Proposed For Fedora 22
  5. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  6. GTK+ On Windows Now Supports OpenGL
  7. New Ruby Benchmarks On GCC vs. LLVM Clang Compilers
  8. Multi-Stream Transport 4K Monitors To Become Better Supported On Linux
  9. New Supertuxkart Beta Lands New Graphics Engine, Uses OpenGL 3.1+
  10. SuperX 3.0 Beta Continues To Polish The KDE Desktop Experience
Latest Forum Discussions
  1. Need some hand holding with upgrading xserver
  2. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support
  3. XLennart: A Game For Systemd Haters With Nothing Better To Do
  4. Microsoft buying Mojang
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. Premium subscription "login" times out much faster than forum
  7. AMD Catalyst 14.12 Linux Driver Released -- Huge Update!
  8. Did Valve already get what they wanted from SteamOS? i.e. Win kernel + BigPicture DE