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[SYCL][Reduction] Prefer fast group reduce over fast atomics #6890

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Sep 29, 2022
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[SYCL][Reduction] Prefer fast group reduce over fast atomics #6890

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8 changes: 4 additions & 4 deletions sycl/include/sycl/reduction.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1133,12 +1133,12 @@ bool reduCGFuncForRange(handler &CGH, KernelType KernelFunc,
size_t NDRItems = NWorkGroups * WGSize;
nd_range<1> NDRange{range<1>{NDRItems}, range<1>{WGSize}};

if constexpr (Reduction::has_fast_atomics)
return reduCGFuncForRangeFastAtomics<KernelName>(CGH, KernelFunc, Range,
NDRange, Redu);
else if constexpr (Reduction::has_fast_reduce)
if constexpr (Reduction::has_fast_reduce)
return reduCGFuncForRangeFastReduce<KernelName>(CGH, KernelFunc, Range,
NDRange, Redu);
else if constexpr (Reduction::has_fast_atomics)
return reduCGFuncForRangeFastAtomics<KernelName>(CGH, KernelFunc, Range,
NDRange, Redu);
else
return reduCGFuncForRangeBasic<KernelName>(CGH, KernelFunc, Range, NDRange,
Redu);
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