Intel Xeon Skylake Compilers: Clang Showing Strong Performance Against GCC

Up first was Rodinia with one of its OpenMP benchmarks. Here we see the performance of LLVM Clang 3.8 SVN to be right in line with GCC 5.2.1 when there is the working OpenMP support. While Clang 3.8 competed with GCC 5.2.1, GCC 6.0 does offer a very significant performance boost for this particular test that puts it well in front of the other C++ compilers.

The performance out of the HMMer scientific workload was nearly the same between Clang and GCC.

While in the past we've seen some measurable differences in the SciMark2 micro-benchmarks between Clang and GCC, with these latest compilers on the Intel Xeon system there was no major upsets in performance.