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__shfl() deprecated #23

@WilliamTambellini

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@WilliamTambellini

Hi
When making kblas with arch 60 via cuda 9, thousand of warnings :

ptxas /tmp/tmpxft_00003b92_00000000-5_XXXXXXXXXX.ptx, line 3957; warning : Instruction 'shfl' without '.sync' is deprecated since PTX ISA version 6.0 and will be discontinued in a future PTX ISA version

../include/operators.h(93): warning: function "__shfl(int, int, int)"
/usr/local/cuda/include/sm_30_intrinsics.hpp(151): here was declared deprecated ("__shfl() is deprecated in favor of __shfl_sync() and may be removed in a future release (Use -Wno-deprecated-declarations to suppress this warning).")

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