ikawrakow/ik_llama.cpp
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iq4_nl

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84.5 t/s -> 128.1 t/s. iq4_nl_r4 is at 120.4 t/s
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Iwan Kawrakow
2025-06-21 15:13:45 +02:00
parent a78bed0f8e
commit 8b102792d8
2 changed files with 14 additions and 3 deletions
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16
ggml/src/iqk/iqk_gemm_legacy_quants.cpp
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@@ -2783,14 +2783,24 @@ void mul_mat_q8_0_r8_q8_0(int n, const void * vx, size_t bx, const DataInfo& inf
}
struct DeqQ40 {
const int8x16_t m8 = vdupq_n_s8(-8);
const int8x16_t ml = vdupq_n_s8(0xf);
const int8x16_t m8 = vdupq_n_s8(-8);
const uint8x16_t ml = vdupq_n_s8(0xf);
inline int8x16x2_t dequant(const block_q4_0& x) const {
auto bits = vld1q_u8(x.qs);
return { vaddq_s8(vreinterpretq_s8_u8(vandq_u8(bits, ml)), m8), vaddq_s8(vreinterpretq_s8_u8(vshrq_n_u8(bits, 4)), m8) };
}
};
struct DeqIQ4NL {
const int8x16_t mt = load_values();
const uint8x16_t ml = vdupq_n_s8(0xf);
inline int8x16x2_t dequant(const block_iq4_nl& x) const {
auto bits = vld1q_u8(x.qs);
return { vqtbl1q_s8(mt, vandq_u8(bits, ml)), vqtbl1q_s8(mt, vshrq_n_u8(bits, 4)) };
}
static inline int8x16_t load_values() { return vld1q_s8(iq4k_values); }
};
struct DeqQ50 {
inline int8x16x2_t dequant(const block_q5_0& x) const {
@@ -2873,7 +2883,7 @@ bool iqk_convert_legacy_quants_q8_r8(int type, int n, const void * vx, size_t bx
case GGML_TYPE_Q5_0 : iqk_convert_qX_q80_r8<block_q5_0, DeqQ50>(n, vx, bx, vy, nrc_x); break;
// case GGML_TYPE_Q5_1 : iqk_convert_qX_1_q8_1_r8<block_q5_1, Q5_1_Dequantizer<block_q5_1>>(n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_Q6_0 : iqk_convert_qX_q80_r8<block_q6_0, DeqQ60>(n, vx, bx, vy, nrc_x); break;
// case GGML_TYPE_IQ4_NL: iqk_convert_qX_q80_r8<block_iq4_nl, IQ4_NL0_Dequantizer>(n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_IQ4_NL: iqk_convert_qX_q80_r8<block_iq4_nl, DeqIQ4NL>(n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_Q8_0 : iqk_convert_qX_q80_r8<block_q8_0, DeqQ80>(n, vx, bx, vy, nrc_x); break;
default: return false;
}

1
ggml/src/iqk/iqk_mul_mat.cpp
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@@ -275,6 +275,7 @@ struct MulMat {
case GGML_TYPE_Q5_0 : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;
case GGML_TYPE_Q6_0 : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;
case GGML_TYPE_Q8_0 : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;
case GGML_TYPE_IQ4_NL : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;
case GGML_TYPE_IQ2_KT : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;
case GGML_TYPE_IQ3_KT : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;
case GGML_TYPE_IQ4_KT : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;