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Some OpenMP SIMD pragmas in blas_new_c do not lead to correct vectorisation #117

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kostrzewa opened this issue Jun 3, 2018 · 2 comments
Open

Some OpenMP SIMD pragmas in blas_new_c do not lead to correct vectorisation #117

kostrzewa opened this issue Jun 3, 2018 · 2 comments
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@azrael417

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@kostrzewa
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libs/QPhiX/include/qphix/blas_new_c.h(893): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(893): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(893): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(893): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(893): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(893): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"
libs/QPhiX/include/qphix/blas_new_c.h(966): warning #15552: loop was not vectorized with "simd"

Compilation done using Intel 18.0.2.199 Build 20180210 for KNL.
@kostrzewa kostrzewa changed the title Some OpenMP SIMD pragmas do not lead to correct vectorisation Some OpenMP SIMD pragmas in blas_new_c do not lead to correct vectorisation Jun 3, 2018
@kostrzewa
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Could it be that this leads to a significant performance regression in the mixed precision solver? Assigning @azrael417 since this was recently changed.

@kostrzewa
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Actually, it seems that performance is unchanged.

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