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https://github.com/ikawrakow/ik_llama.cpp.git
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Bitnet(2.25 bpw): NEON
We get PP-512 = 192 t/s, TG-128 = 72 t/s
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@@ -4199,61 +4199,22 @@ static void mul_mat_iq2bn_q8_K64(int n, const void * vx, size_t bx, const DataIn
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Q8_K64<nrc_y> q8(info);
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float32x4_t accd[nrc_y];
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int8x16x4_t signs;
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uint64x2x4_t a;
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int8x16x4_t v;
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const auto m1 = vdupq_n_u8(1);
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const uint8x16x4_t sign_shuffles = {
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vreinterpretq_u8_u64(uint64x2_t{0x0000000000000000, 0x0101010101010101}),
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vreinterpretq_u8_u64(uint64x2_t{0x0202020202020202, 0x0303030303030303}),
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vreinterpretq_u8_u64(uint64x2_t{0x0404040404040404, 0x0505050505050505}),
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vreinterpretq_u8_u64(uint64x2_t{0x0606060606060606, 0x0707070707070707}),
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};
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const auto shift = vreinterpretq_s8_u32(vdupq_n_u32(0xfafcfe00));
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const auto qmask = vdupq_n_u8(3);
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const auto shuff1 = vreinterpretq_u8_u64(uint64x2_t{0x0101010100000000, 0x0909090908080808});
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const auto mask1 = vreinterpretq_u8_u64(vdupq_n_u64(0x8040201008040201));
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const auto mask2 = vdupq_n_s8(3);
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for (int ix = 0; ix < nrc_x; ++ix) {
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const block_iq2_bn * x = (const block_iq2_bn *)((const char *)vx + ix*bx);
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float d = GGML_FP16_TO_FP32(*(const ggml_half *)x);
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auto extra_ptr = (const uint16_t *)x;
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const float d = GGML_FP16_TO_FP32(x[0].d);
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auto all_signs = vdupq_n_u8(extra_ptr[1]);
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all_signs = vorrq_u8(vceqq_u8(vandq_u8(all_signs, mask1), mask1), m1);
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signs.val[0] = vqtbl1q_u8(all_signs, sign_shuffles.val[0]);
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signs.val[1] = vqtbl1q_u8(all_signs, sign_shuffles.val[1]);
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signs.val[2] = vqtbl1q_u8(all_signs, sign_shuffles.val[2]);
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signs.val[3] = vqtbl1q_u8(all_signs, sign_shuffles.val[3]);
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auto ql = (const uint8_t *)(extra_ptr + 2);
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auto qh = ql + QK_IQ1BN/8;
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a.val[0] = uint64x2_t{iq1bn_grid_u16[ql[0] | ((qh[0] << 8) & 0x0f00)], iq1bn_grid_u16[ql[1] | ((qh[0] << 4) & 0x0f00)]};
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a.val[1] = uint64x2_t{iq1bn_grid_u16[ql[2] | ((qh[1] << 8) & 0x0f00)], iq1bn_grid_u16[ql[3] | ((qh[1] << 4) & 0x0f00)]};
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a.val[2] = uint64x2_t{iq1bn_grid_u16[ql[4] | ((qh[2] << 8) & 0x0f00)], iq1bn_grid_u16[ql[5] | ((qh[2] << 4) & 0x0f00)]};
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a.val[3] = uint64x2_t{iq1bn_grid_u16[ql[6] | ((qh[3] << 8) & 0x0f00)], iq1bn_grid_u16[ql[7] | ((qh[3] << 4) & 0x0f00)]};
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v.val[0] = vsubq_s8(vandq_u8(vshlq_u8(vqtbl1q_u8(vreinterpretq_u8_u64(a.val[0]), shuff1), shift), qmask), m1);
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v.val[1] = vsubq_s8(vandq_u8(vshlq_u8(vqtbl1q_u8(vreinterpretq_u8_u64(a.val[1]), shuff1), shift), qmask), m1);
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v.val[2] = vsubq_s8(vandq_u8(vshlq_u8(vqtbl1q_u8(vreinterpretq_u8_u64(a.val[2]), shuff1), shift), qmask), m1);
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v.val[3] = vsubq_s8(vandq_u8(vshlq_u8(vqtbl1q_u8(vreinterpretq_u8_u64(a.val[3]), shuff1), shift), qmask), m1);
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v.val[0] = vmulq_s8(v.val[0], signs.val[0]);
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v.val[1] = vmulq_s8(v.val[1], signs.val[1]);
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v.val[2] = vmulq_s8(v.val[2], signs.val[2]);
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v.val[3] = vmulq_s8(v.val[3], signs.val[3]);
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if constexpr (nrc_y == 1) {
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auto q = q8.load_quants(0, 0);
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int32x4_t sumi = vdupq_n_s32(0);
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for (int j = 0; j < 4; ++j) {
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sumi = ggml_vdotq_s32(sumi, q.val[j], v.val[j]);
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}
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accd[0] = vmulq_f32(vdupq_n_f32(q8.scale(0, 0)), vcvtq_f32_s32(sumi));
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} else {
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{
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auto q2bits = vld1q_u8(x[0].qs);
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v.val[0] = vsubq_s8(vandq_s8(q2bits, mask2), m1);
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v.val[1] = vsubq_s8(vandq_s8(vshrq_n_u8(q2bits, 2), mask2), m1);
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v.val[2] = vsubq_s8(vandq_s8(vshrq_n_u8(q2bits, 4), mask2), m1);
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v.val[3] = vsubq_s8(vshrq_n_u8(q2bits, 6), m1);
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for (int iy = 0; iy < nrc_y; ++iy) {
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int32x4_t sumi = vdupq_n_s32(0);
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auto q = q8.load_quants(iy, 0, 0);
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@@ -4262,6 +4223,7 @@ static void mul_mat_iq2bn_q8_K64(int n, const void * vx, size_t bx, const DataIn
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sumi = ggml_vdotq_s32(ggml_vdotq_s32(sumi, q.val[0], v.val[2]), q.val[1], v.val[3]);
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accd[iy] = vmulq_f32(vdupq_n_f32(q8.scale(iy, 0)), vcvtq_f32_s32(sumi));
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}
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}
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for (int i = 1; i < nb; ++i) {
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