ikawrakow/ik_llama.cpp
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iq4_k

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46.4 -> 167.2 t/s. iq4_k_r4 is at 115 t/s.
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Iwan Kawrakow
2025-06-23 09:59:52 +02:00
parent 54dfc404e7
commit a15cfa0401
2 changed files with 42 additions and 1 deletions
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42
ggml/src/iqk/iqk_gemm_iqk_quants.cpp
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@@ -4137,6 +4137,46 @@ void iqk_convert_iq5_ks_q8_k_r8(int n, const void * vx, size_t bx, void * vy, in
}
}
void iqk_convert_iq4_k_q8_k_r8(int n, const void * vx, size_t bx, void * vy, int nrc_x) {
GGML_ASSERT(n%QK_K == 0);
GGML_ASSERT(nrc_x%8 == 0);
int nb = n/QK_K;
const block_iq4_k * x8[8];
block_q8_k_r8 * y = (block_q8_k_r8 *)vy;
int8x16x2_t values = vld1q_s8_x2(iq4k_values);
int8x16x2_t xv[8];
uint32_t block[8];
int8_t ls[16];
auto ml = vdupq_n_u8(0xf);
for (int ix = 0; ix < nrc_x; ix += 8) {
for (int k = 0; k < 8; ++k) x8[k] = (const block_iq4_k *)((const char *)vx + (ix+k)*bx);
for (int i = 0; i < nb; ++i) {
for (int k = 0; k < 8; ++k) {
float d = GGML_FP16_TO_FP32(x8[k][i].d);
auto extra = x8[k][i].extra;
for (int ib32 = 0; ib32 < 8; ++ib32) {
const uint8_t sh = x8[k][i].scales_h[ib32/2] >> 4*(ib32%2);
ls[2*ib32+0] = ((x8[k][i].scales_l[ib32] & 0xf) | ((sh << 4) & 0x30)) - 32;
ls[2*ib32+1] = ((x8[k][i].scales_l[ib32] >> 4) | ((sh << 2) & 0x30)) - 32;
auto bits = vld1q_u8(x8[k][i].qs+16*ib32);
xv[ib32].val[0] = vqtbl1q_s8(values.val[extra & 1], vandq_u8(bits, ml)); extra >>= 1;
xv[ib32].val[1] = vqtbl1q_s8(values.val[extra & 1], vshrq_n_u8(bits, 4)); extra >>= 1;
}
float dnew = convert_to_q8_k_r8(1.f/127, xv, ls, block, (uint32_t *)y[i].qs + k);
y[i].d[k] = GGML_FP32_TO_FP16(d*dnew);
}
}
y += nb;
}
}
void iqk_convert_iq5_k_q8_k_r8(int n, const void * vx, size_t bx, void * vy, int nrc_x) {
GGML_ASSERT(n%QK_K == 0);
GGML_ASSERT(nrc_x%8 == 0);
@@ -4243,7 +4283,7 @@ bool iqk_convert_iqk_quants_q80_r8(int type, int n, const void * vx, size_t bx,
// case GGML_TYPE_IQ2_K : iqk_convert_iq2_k_q8_k_r8 (n, vx, bx, vy, nrc_x); break;
// case GGML_TYPE_IQ3_K : iqk_convert_iq3_k_q8_k_r8 (n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_IQ4_KS : iqk_convert_iq4_ks_q8_k_r8(n, vx, bx, vy, nrc_x); break;
// case GGML_TYPE_IQ4_K : iqk_convert_iq4_k_q8_k_r8 (n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_IQ4_K : iqk_convert_iq4_k_q8_k_r8 (n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_IQ5_KS : iqk_convert_iq5_ks_q8_k_r8(n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_IQ5_K : iqk_convert_iq5_k_q8_k_r8 (n, vx, bx, vy, nrc_x); break;
case GGML_TYPE_IQ6_K : iqk_convert_iq6_k_q8_k_r8 (n, vx, bx, vy, nrc_x); break;

1
ggml/src/iqk/iqk_mul_mat.cpp
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@@ -284,6 +284,7 @@ struct MulMat {
case GGML_TYPE_IQ2_KS : return nrc_y >= 32 ? GGML_TYPE_Q8_K_R8 : type;
case GGML_TYPE_IQ4_KS : return nrc_y >= 32 ? GGML_TYPE_Q8_K_R8 : type;
case GGML_TYPE_IQ5_KS : return nrc_y >= 32 ? GGML_TYPE_Q8_K_R8 : type;
case GGML_TYPE_IQ4_K : return nrc_y >= 32 ? GGML_TYPE_Q8_K_R8 : type;
case GGML_TYPE_IQ5_K : return nrc_y >= 32 ? GGML_TYPE_Q8_K_R8 : type;
case GGML_TYPE_IQ6_K : return nrc_y >= 32 ? GGML_TYPE_Q8_K_R8 : type;
default: break;