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

Open64 Compiler Tuning On AMD Bulldozer FX-8150

Michael Larabel

Published on 2 November 2011
Written by Michael Larabel
Page 1 of 8 - 15 Comments

After recently comparing the AMD Bulldozer with the GCC, Open64, and LLVM/Clang compilers, in this article is a look at the performance of AMD's Open64 compiler when using their recommended compiler tuning options for Bulldozer when building software.

This article tests the various compiler options that AMD recommends as using for the CFLAGS/CXXFLAGS per their "Compiler Options Quick Reference Guide" for AMD Opteron Interlagos (Bulldozer) CPUs. AMD puts out the various optimizations in a very concise guide (this is a great example for those that have requested specific compiler tests in the past, where I have said to assemble a page on a Wiki or other documentation that details each recommended option for a particular environment).

In this article is just a look at AMD's recommended compiler options for the Open64 compiler.

The options tested included stock (not overriding any CFLAGS/CXXFLAGS and Open64 defaults to the -O2 optimization level), no optimizations (-O0), O1 local optimizations (-O1), O3 aggressive optimizations (-O3), bdver1 (Bulldozer optimizations for the march/mtune switches; -march=bdver1 -mtune=bdver1), auto-parallelization (-apo), huge pages (-HP). loop nest optimizations (-LNO:prefetch -LNO:prefetch_ahead), multi-core scalability (-mso), and LNO prefetch. Each of the C/C++ tests were re-installed before testing and built with the respective CFLAGS/CXXFLAGS set each time (using the force-install command from the Phoronix Test Suite). This article is not looking at the performance when pairing various compiler options together.

The AMD Open64 4.2.5.2 compiler was used from an Ubuntu 11.10 installation on the Linux 3.1 kernel from the AMD FX-8150 Eight-Core test system.

This article is just the second of several compiler test articles that are forthcoming from AMD's new Bulldozer platform.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. MSI X99S SLI PLUS On Linux
  2. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  3. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  4. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
Latest Linux Articles
  1. Open-Source Radeon 2D Performance Is Better With Ubuntu 14.10
  2. RunAbove: A POWER8 Compute Cloud With Offerings Up To 176 Threads
  3. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  4. Ubuntu 14.10 XMir System Compositor Benchmarks
Latest Linux News
  1. KDE With Theoretical Client-Side Decorations, Windows 10 Influence
  2. Sandusky Lee: Great Cabinets For Storing All Your Computer Gear
  3. Fedora 21 Beta & Final Release Slip Further
  4. Mesa 10.3.2 Has A Couple Bug-Fixes
  5. RadeonSI/R600g HyperZ Support Gets Turned Back On
  6. openSUSE Factory & Tumbleweed Are Merging
  7. More Fedora Delays: Fedora 21 Beta Slips
  8. Mono Brings C# To The Unreal Engine 4
  9. Coreboot Now Has Support For Intel Broadwell Hardware
  10. Enlightenment's EFL 1.12 Alpha Has Evas GL-DRM Engine, OpenGL ES 1.1 Support
Latest Forum Discussions
  1. HOPE: The Ease Of Python With The Speed Of C++
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Debian Is Back To Discussing Init Systems, Freedom of Choice
  4. AMD Radeon VDPAU Video Performance With Gallium3D
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  7. Linux hacker compares Solaris kernel code:
  8. Advertisements On Phoronix