GCC 7.0 vs. LLVM Clang 4.0 Performance With Both Compiler Updates Coming Soon

Written by Michael Larabel in Software on 28 January 2017. Page 2 of 6. 30 Comments

Interestingly, with the HPC Challenge's HPL test, Clang is running much faster than GCC 7.

With the EP-DGEMM test, the Clang performance also was much higher than GCC but for these other HPCC runs the performance was close between these competing compilers.

Clang is a tiny bit slower than GCC with the FFTW performance.

The HMMer scientific benchmark results were dead on between GCC and Clang.

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