ikawrakow/ik_llama.cpp
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iqk_mul_mat: add IQ4_NL

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I never use it, so I had completely forgotten about it.
This commit is contained in:
Kawrakow
2024-06-21 18:51:44 +03:00
parent 912d6d9ce1
commit 32ec107237
1 changed files with 24 additions and 1 deletions
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25
iqk_mul_mat.cpp
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@@ -2330,6 +2330,19 @@ struct Q4_0_Dequantizer {
}
};
struct IQ4_NL_Dequantizer {
Dequantizer4bit b4;
const __m256i values = load_values();
inline __m256i dequant(const block_iq4_nl * x) const {
return _mm256_shuffle_epi8(values, b4.dequant(x->qs));
}
static __m256i load_values() {
static const int8_t iq4nl_values[16] = {-127, -104, -83, -65, -49, -35, -22, -10, 1, 13, 25, 38, 53, 69, 89, 113};
auto aux = _mm_loadu_si128((const __m128i *)iq4nl_values);
return MM256_SET_M128I(aux, aux);
}
};
struct Q4_1_Dequantizer {
Dequantizer4bit b4;
inline __m256i dequant(const block_q4_1 * x) const {
@@ -2413,6 +2426,11 @@ struct Q4_0_Unpacker final : public Q_Unpacker<block_q4_0, ScaleHelperQ_0, Q4_0_
using Sum4T = Sum4TypeQ80;
inline static int block_size() { return QK4_0; }
};
struct IQ4_NL_Unpacker final : public Q_Unpacker<block_iq4_nl, ScaleHelperQ_0, IQ4_NL_Dequantizer> {
IQ4_NL_Unpacker(const void * vx, size_t bx) : Q_Unpacker(vx, bx) {}
using Sum4T = Sum4TypeQ80;
inline static int block_size() { return QK4_NL; }
};
struct Q5_0_Unpacker final : public Q_Unpacker<block_q5_0, ScaleHelperQ_0, Q5_0_Dequantizer> {
Q5_0_Unpacker(const void * vx, size_t bx) : Q_Unpacker(vx, bx) {}
using Sum4T = Sum4TypeQ80;
@@ -2607,7 +2625,7 @@ void mul_mat_q80_q80_T(int n, const void * vx, size_t bx, const DataInfo& info,
template <typename Dequantizer> void MulMat::set_functions(MulMat& m) {
if constexpr (std::is_same_v<Dequantizer, Q4_0_Unpacker> || std::is_same_v<Dequantizer, Q5_0_Unpacker> ||
std::is_same_v<Dequantizer, Q8_0_Unpacker>) {
std::is_same_v<Dequantizer, Q8_0_Unpacker> || std::is_same_v<Dequantizer, IQ4_NL_Unpacker>) {
m.funcs[0] = mul_mat_qX_0_q8_0_T<Dequantizer, 1>;
m.funcs[1] = mul_mat_qX_0_q8_0_T<Dequantizer, 2>;
m.funcs[2] = mul_mat_qX_0_q8_0_T<Dequantizer, 3>;
@@ -2808,6 +2826,11 @@ bool MulMat::prepare(int typeA, int typeB, int ne00, MulMat& mm, int Ny) {
MulMat::set_functions<Q8_0_Unpacker>(mm);
expected_typeB = GGML_TYPE_Q8_0;
break;
case GGML_TYPE_IQ4_NL:
assert (ne00 % QK4_NL == 0);
MulMat::set_functions<IQ4_NL_Unpacker>(mm);
expected_typeB = GGML_TYPE_Q8_0;
break;
default:
return false;