AMD FX-8150 With The Open64 5.0 Compiler
The Open64 5.0 compiler was released earlier this month with many changes, among the prominently noted items were greater optimizations for AMD's Bulldozer CPUs. In this article is a first-look at the Open64 5.0 compiler performance compared to its earlier release, as tested on an AMD FX-8150 eight-core "Bulldozer" processor.
On Phoronix have already been benchmarks on AMD Bulldozer hardware comparing the performance to GCC and LLVM/Clang and Open64 Bulldozer compiler tuning, among other articles. This is the first review using the brand-new Open64 5.0 compiler release rather than Open64 4.x.
Today's testing is quite simple and similar to the earlier articles, except it is with the brand new open-source compiler. The x86_64 4.2.4 and 5.0 compiler binaries were used from the Open64 web-site. AMD has yet to release its fork of the Open64 compiler that is updated to the 5.0 status.
The two Open64 releases were tested on the FX-8150 Linux setup when using the stock configuration (not overriding any CFLAGS/CXXFLAGS from the individual test profiles) and then again when passing "-march=bdver1 -mtune=bdver1" as the compiler flags to enable the Bulldozer-specific generation-one optimizations. All testing was done by the Phoronix Test Suite
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