ikawrakow/ik_llama.cpp
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q8_0

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84.5 -> 128.7 t/s. q8_0_r8 is at 131 t/s.
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Iwan Kawrakow
2025-06-21 12:43:30 +02:00
parent a834e4be15
commit a78bed0f8e
2 changed files with 8 additions and 1 deletions
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8
ggml/src/iqk/iqk_gemm_legacy_quants.cpp
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@@ -2824,6 +2824,12 @@ struct DeqQ60 {
const uint8x16_t hmask = vdupq_n_u8(0x30);
};
struct DeqQ80 {
inline int8x16x2_t dequant(const block_q8_0& x) const {
return vld1q_s8_x2(x.qs);
}
};
template <typename Block, typename Dequantizer>
void iqk_convert_qX_q80_r8(int n, const void * vx, size_t bx, void * vy, int nrc_x) {
GGML_ASSERT(n%QK4_0 == 0);
@@ -2868,7 +2874,7 @@ bool iqk_convert_legacy_quants_q8_r8(int type, int n, const void * vx, size_t bx
// 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_Q8_0 : iqk_convert_q80_q80_r8(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;
}
return true;

1
ggml/src/iqk/iqk_mul_mat.cpp
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@@ -274,6 +274,7 @@ struct MulMat {
case GGML_TYPE_Q4_0 : return nrc_y >= 32 ? GGML_TYPE_Q8_0_R8 : type;
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_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;