float Q_rsqrt( float number ) { long i; float x2, y; const float threehalfs = 1.5F; x2 = number * 0.5F; y = number; i = * ( long * ) &y; // evil floating point bit level hacking i = 0x5f3759df - ( i >> 1 ); // what the fuck? y = * ( float * ) &i; y...
floatQ_rsqrt(floatnumber){inti;floatx2,y;constfloatthreehalfs=1.5F;x2=number*0.5F;y=number;...
mask_q is not None: mask_q = self.mask_q.unsqueeze(2).expand(b, t_q, t_k) mask = mask_q if mask is None else mask | mask_q if mask is not None: qk.masked_fill_(mask, float('-inf')) return F.softmax(qk, dim=2, dtype=torch.float32 if qk.dtype == torch.float16 ...
(A, B, Q, S) \ PARTS_GENERIC_64_128(modrem, A)(A, B, Q, S) static void parts64_sqrt(FloatParts64 *a, float_status *s, const FloatFmt *f); static void parts128_sqrt(FloatParts128 *a, float_status *s, const FloatFmt *f); #define parts_sqrt(A, S, F) \ PARTS_GENERIC...
+-rsqrt---+ +-nosingle---+ '-spnans---' Defaults -qfloat=dfpemulate:nofenv:nofltint:fold:nohscmplx:nohsflt:nohssngl: maf:nonans:norelax:rndsngl:rngchk:norrm:norsqrt:single:nospnans -qfloat=fltint:rsqrt:norngchkwhen-qnostrict,-qstrict=nooperationprecision:noexceptions, or-O3or...
比如，在一段快速计算根号倒数的大神级代码 floatQ_rsqrt(floatnumber){inti;floatx2,y;constfloatthree...
float 称为单精度浮点数，double 称为双精度浮点数。不像整数，小数的长度始终是固定的，float 占用4...