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FMA-avx512-f64 kernel use half-vector-machine design

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Nitload
2026-06-08 01:02:34 +08:00
parent 4336b0ca5a
commit 1c515ea2ae
5 changed files with 51 additions and 34 deletions
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StgSharp.Native/sn-src/mk.fma.x86.c
+30 -33
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@@ -133,10 +133,10 @@ SN_MK_PROC_DECL_STD(float, avx, _fma, fma)
SN_MK_FMA_F32_AVX2_CYCLE(3);
}
SN_FMA_AVX2_PACK_COLUMN(c0, (float*)&(ans_cur->x[0]));
SN_FMA_AVX2_PACK_COLUMN(c1, (float*)&(ans_cur->x[1]));
SN_FMA_AVX2_PACK_COLUMN(c2, (float*)&(ans_cur->x[2]));
SN_FMA_AVX2_PACK_COLUMN(c3, (float*)&(ans_cur->x[3]));
SN_FMA_F32_AVX2_PACK_COLUMN(c0, (float*)&(ans_cur->x[0]));
SN_FMA_F32_AVX2_PACK_COLUMN(c1, (float*)&(ans_cur->x[1]));
SN_FMA_F32_AVX2_PACK_COLUMN(c2, (float*)&(ans_cur->x[2]));
SN_FMA_F32_AVX2_PACK_COLUMN(c3, (float*)&(ans_cur->x[3]));
}
@@ -169,10 +169,10 @@ SN_MK_PROC_DECL_STD(float, 512, , fma)
SN_MK_FMA_F32_512_CYCLE(3);
}
SN_FMA_512_PACK_COLUMN(c0, (float*)&(ans_cur->x[0]));
SN_FMA_512_PACK_COLUMN(c1, (float*)&(ans_cur->x[1]));
SN_FMA_512_PACK_COLUMN(c2, (float*)&(ans_cur->x[2]));
SN_FMA_512_PACK_COLUMN(c3, (float*)&(ans_cur->x[3]));
SN_FMA_F32_512_PACK_COLUMN(c0, (float*)&(ans_cur->x[0]));
SN_FMA_F32_512_PACK_COLUMN(c1, (float*)&(ans_cur->x[1]));
SN_FMA_F32_512_PACK_COLUMN(c2, (float*)&(ans_cur->x[2]));
SN_FMA_F32_512_PACK_COLUMN(c3, (float*)&(ans_cur->x[3]));
}
@@ -348,36 +348,33 @@ SN_MK_PROC_DECL_STD(double, avx, _fma, fma)
SN_MK_PROC_DECL_STD(double, 512, , fma)
{
__mk_param_std(TILE, LEFT_RIGHT_ANS, double);
SN_MAT_KERNEL_LOCAL *restrict ans_cur = ans + GET_INDEX(common_y, x, y);
register __m512d c01 = _mm512_load_pd((double *)&ans_cur->z[0]);
register __m512d c23 = _mm512_load_pd((double *)&ans_cur->z[1]);
register __m512d c0 = _mm512_setzero_pd();
register __m512d c1 = _mm512_setzero_pd();
register __m512d c2 = _mm512_setzero_pd();
register __m512d c3 = _mm512_setzero_pd();
for (size_t z = 0; z < common_z; z++) {
SN_MAT_KERNEL_LOCAL const *right_cur = right + GET_INDEX(common_z, x, z);
SN_MAT_KERNEL_LOCAL const *left_cur = left + GET_INDEX(common_y, z, y);
for (size_t z = 0; z < common_z; z+=2) {
SN_MAT_KERNEL_LOCAL const *right_cur = right + z;
SN_MAT_KERNEL_LOCAL const *left_cur = left + z;
register __m512d a01 = _mm512_load_pd((double *)&left_cur->z[0]);
register __m512d a23 = _mm512_load_pd((double *)&left_cur->z[1]);
register __m512d a0 = _mm512_load_pd((double *)&left_cur->z[0]);
register __m512d a1 = _mm512_load_pd((double *)&left_cur->z[1]);
register __m512d a2 = _mm512_load_pd((double *)&left_cur->z[2]);
register __m512d a3 = _mm512_load_pd((double *)&left_cur->z[3]);
register __m512d b0 = _mm512_broadcast_f64x4(right_cur->y[0]);
c01 = _mm512_fmadd_pd(a01, b0, c01);
c23 = _mm512_fmadd_pd(a23, b0, c23);
register __m512d b1 = _mm512_broadcast_f64x4(right_cur->y[1]);
c01 = _mm512_fmadd_pd(a01, b1, c01);
c23 = _mm512_fmadd_pd(a23, b1, c23);
register __m512d b2 = _mm512_broadcast_f64x4(right_cur->y[2]);
c01 = _mm512_fmadd_pd(a01, b2, c01);
c23 = _mm512_fmadd_pd(a23, b2, c23);
register __m512d b3 = _mm512_broadcast_f64x4(right_cur->y[3]);
c01 = _mm512_fmadd_pd(a01, b3, c01);
c23 = _mm512_fmadd_pd(a23, b3, c23);
register __m512d b0 = _mm512_load_pd((double *)&left_cur->z[0]);
register __m512d b1 = _mm512_load_pd((double *)&left_cur->z[1]);
register __m512d b2 = _mm512_load_pd((double *)&left_cur->z[2]);
register __m512d b3 = _mm512_load_pd((double *)&left_cur->z[3]);
SN_MK_FMA_F64_AVX2_CYCLE(0);
SN_MK_FMA_F64_AVX2_CYCLE(1);
SN_MK_FMA_F64_AVX2_CYCLE(2);
SN_MK_FMA_F64_AVX2_CYCLE(3);
}
_mm512_store_pd((double *)&ans_cur->z[0], c01);
_mm512_store_pd((double *)&ans_cur->z[1], c23);
_mm512_store_pd((double *)&ans_cur->z[0], c0);
_mm512_store_pd((double *)&ans_cur->z[1], c2);
}
#endif