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

LLVM Clang OpenMP 4 Support Nears Reality

Compiler

Published on 09 December 2013 10:09 AM EST
Written by Michael Larabel in Compiler
4 Comments

It's taken far longer than most anyone would have estimated, but it looks like things may finally be getting close for the mainlining of OpenMP within the LLVM Clang compiler. The good news is that Intel developers have already been working on OpenMP 4.0 support for Clang.

I've been talking about OpenMP for Clang for two years and longer now, but support for this parallel programming standard for C and Fortran has yet to land. Even with the upcoming release of LLVM 3.4, support for OpenMP is absent.

The last time there was any news to share on OpenMP in Clang was last August when Intel was still working on improving the support but today we have a new status update.

Andrey Bokhanko of Intel's compiler team wrote a status update this morning on the LLVM mailing list:

- ANL and PathScale have re-based the OpenMP support from Clang 3.3 to now running off the latest Clang development code.

- The OpenMP Consortium is acknowledging the Clang work on supporting this standard.

- An Intel developer gave a talk about OpenMP in Clang/LLVM at the recent SC13 conference.

- Intel has contributed support for the OMP SIMD pragma, OMP declare reduction pragma, and proc_bind clause support for Clang. These OpenMP features are part of the OpenMP 4.0 standard. Another Intel developer also worked on support for variable length arrays for OpenMP construct.s

- Texas Instruments is expressing support for OpenMP 4 in LLVM/Clang.

More details can be found in this LLVMdev post. Meanwhile, the GCC 4.9 compiler will feature out-of-the-box OpenMP 4.0 support and has long supported previous versions of the multi-processing specification.

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. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  2. Sumo's Omni Gets Reloaded
  3. AMD A10-7800 & A6-7400K APUs Run Great On Linux
  4. Radeon Gallium3D Is Running Increasingly Well Against AMD's Catalyst Driver
Latest Linux Articles
  1. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
  2. Open-Source Radeon Graphics Have Some Improvements On Linux 3.17
  3. CPUFreq Scaling Tests With AMD's Kaveri On Linux 3.16
  4. Enabling HyperZ Is Still An Easy Way For Faster RadeonSI Performance
Latest Linux News
  1. Userptr Support Set For AMD Radeon GPUs In Linux 3.18
  2. NVIDIA Releases CUDA 6.5 As A Huge Update
  3. GNOME 3.14 Beta Makes GLSL Optional, Supports Wayland Gesture/Touch Events
  4. KDE Software Compilation 4.14 Released
  5. The Many Things You Can Build With A Raspberry Pi
  6. AMD's Catalyst Linux Driver Preparing For A World Without An X Server?
  7. Khronos Publishes Its Slides About OpenGL-Next
  8. Proposed: A Tainted Performance State For The Linux Kernel
  9. Systemd 216 Piles On More Features, Aims For New User-Space VT
  10. LXQt 0.8 Is Being Released Soon
Latest Forum Discussions
  1. Systemd 216 Piles On More Features, Aims For New User-Space VT
  2. The dangers of Linux kernel development
  3. Remote gui not accessible in Phoronix Test Suite 5.2
  4. Dead Island for Linux (?)
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. AMD Offers Mantle For OpenGL-Next, Pushes Mantle To Workstations
  7. Next-Gen OpenGL To Be Announced Next Month
  8. OpenGL 4.5 Released With New Features