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-rw-r--r--ggml/src/ggml-cuda/common.cuh7
-rw-r--r--ggml/src/ggml-cuda/convert.cu36
-rw-r--r--ggml/src/ggml-cuda/mmvq.cu12
-rw-r--r--ggml/src/ggml-cuda/vecdotq.cuh32
4 files changed, 87 insertions, 0 deletions
diff --git a/ggml/src/ggml-cuda/common.cuh b/ggml/src/ggml-cuda/common.cuh
index 8549c4e5..12eebb00 100644
--- a/ggml/src/ggml-cuda/common.cuh
+++ b/ggml/src/ggml-cuda/common.cuh
@@ -670,6 +670,13 @@ struct ggml_cuda_type_traits<GGML_TYPE_IQ4_XS> {
};
template<>
+struct ggml_cuda_type_traits<GGML_TYPE_IQ2_K> {
+ static constexpr int qk = QK_K;
+ static constexpr int qr = QR4_XS;
+ static constexpr int qi = QI4_XS;
+};
+
+template<>
struct ggml_cuda_type_traits<GGML_TYPE_IQ4_K> {
static constexpr int qk = QK_K;
static constexpr int qr = QR4_XS;
diff --git a/ggml/src/ggml-cuda/convert.cu b/ggml/src/ggml-cuda/convert.cu
index e7732cf5..6dd0fc50 100644
--- a/ggml/src/ggml-cuda/convert.cu
+++ b/ggml/src/ggml-cuda/convert.cu
@@ -543,6 +543,32 @@ static __global__ void dequantize_block_iq4_k(const void * __restrict__ vx, dst_
}
}
+template<typename dst_t>
+static __global__ void dequantize_block_iq2_k(const void * __restrict__ vx, dst_t * __restrict__ yy) {
+
+ const int i = blockIdx.x;
+ const block_iq2_k * x = (const block_iq2_k *) vx;
+
+ const int tid = threadIdx.x;
+ int ib128 = tid/16; // 0 or 1
+ int il = tid%16; // 0...15
+ dst_t * y = yy + i*QK_K + 128*ib128 + 2*il;
+ const float d = (float)x[i].d * 1.025f; //1.0325f;
+ const float dl1 = d * (2*((x[i].scales[4*ib128+0] >> 4*(il/8)) & 0xf) - 15);
+ const float dl2 = d * (2*((x[i].scales[4*ib128+1] >> 4*(il/8)) & 0xf) - 15);
+ const float dl3 = d * (2*((x[i].scales[4*ib128+2] >> 4*(il/8)) & 0xf) - 15);
+ const float dl4 = d * (2*((x[i].scales[4*ib128+3] >> 4*(il/8)) & 0xf) - 15);
+ const uint8_t * qs = x[i].qs + 32*ib128 + 2*il;
+ const int16_t extra = x[i].extra >> (8*ib128 + (il/8));
+ for (int j = 0; j < 2; ++j) {
+ y[j+ 0] = dl1 * iq2nl_values[((qs[j] >> 0) & 0x03) + ((extra << 2) & 4)];
+ y[j+32] = dl2 * iq2nl_values[((qs[j] >> 2) & 0x03) + ((extra << 0) & 4)];
+ y[j+64] = dl3 * iq2nl_values[((qs[j] >> 4) & 0x03) + ((extra >> 2) & 4)];
+ y[j+96] = dl4 * iq2nl_values[((qs[j] >> 6) & 0x03) + ((extra >> 4) & 4)];
+ }
+}
+
+
template <int qk, int qr, dequantize_kernel_t dequantize_kernel, typename dst_t>
static void dequantize_block_cuda(const void * __restrict__ vx, dst_t * __restrict__ y, const int64_t k, cudaStream_t stream) {
const int num_blocks = (k + 2*CUDA_DEQUANTIZE_BLOCK_SIZE - 1) / (2*CUDA_DEQUANTIZE_BLOCK_SIZE);
@@ -678,6 +704,12 @@ static void dequantize_row_iq4_k_cuda(const void * vx, dst_t * y, const int64_t
dequantize_block_iq4_k<<<nb, 32, 0, stream>>>(vx, y);
}
+template<typename dst_t>
+static void dequantize_row_iq2_k_cuda(const void * vx, dst_t * y, const int64_t k, cudaStream_t stream) {
+ const int nb = (k + QK_K - 1) / QK_K;
+ dequantize_block_iq2_k<<<nb, 32, 0, stream>>>(vx, y);
+}
+
template <typename src_t, typename dst_t>
static __global__ void convert_unary(const void * __restrict__ vx, dst_t * __restrict__ y, const int64_t k) {
const int64_t i = (int64_t)blockDim.x*blockIdx.x + threadIdx.x;
@@ -744,6 +776,8 @@ to_fp16_cuda_t ggml_get_to_fp16_cuda(ggml_type type) {
return dequantize_row_iq4_xs_cuda;
case GGML_TYPE_IQ4_K:
return dequantize_row_iq4_k_cuda;
+ case GGML_TYPE_IQ2_K:
+ return dequantize_row_iq2_k_cuda;
case GGML_TYPE_IQ3_S:
return dequantize_row_iq3_s_cuda;
case GGML_TYPE_F32:
@@ -797,6 +831,8 @@ to_fp32_cuda_t ggml_get_to_fp32_cuda(ggml_type type) {
return dequantize_row_iq4_xs_cuda;
case GGML_TYPE_IQ4_K:
return dequantize_row_iq4_k_cuda;
+ case GGML_TYPE_IQ2_K:
+ return dequantize_row_iq2_k_cuda;
case GGML_TYPE_IQ3_S:
return dequantize_row_iq3_s_cuda;
case GGML_TYPE_F16:
diff --git a/ggml/src/ggml-cuda/mmvq.cu b/ggml/src/ggml-cuda/mmvq.cu
index 5da32d99..b99dc245 100644
--- a/ggml/src/ggml-cuda/mmvq.cu
+++ b/ggml/src/ggml-cuda/mmvq.cu
@@ -25,6 +25,7 @@ static constexpr __device__ vec_dot_q_cuda_t get_vec_dot_q_cuda(ggml_type type)
type == GGML_TYPE_IQ4_NL ? vec_dot_iq4_nl_q8_1 :
type == GGML_TYPE_IQ4_XS ? vec_dot_iq4_xs_q8_1 :
type == GGML_TYPE_IQ4_K ? vec_dot_iq4_k_q8_1 :
+ type == GGML_TYPE_IQ2_K ? vec_dot_iq2_k_q8_1 :
type == GGML_TYPE_IQ3_S ? vec_dot_iq3_s_q8_1 :
nullptr;
}
@@ -48,6 +49,7 @@ static constexpr __device__ int get_vdr_mmvq(ggml_type type) {
type == GGML_TYPE_IQ4_NL ? VDR_IQ4_NL_Q8_1_MMVQ :
type == GGML_TYPE_IQ4_XS ? VDR_IQ4_XS_Q8_1_MMVQ :
type == GGML_TYPE_IQ4_K ? VDR_IQ4_K_Q8_1_MMVQ :
+ type == GGML_TYPE_IQ2_K ? VDR_IQ2_K_Q8_1_MMVQ :
1;
}
@@ -352,6 +354,13 @@ static void mul_mat_vec_iq4_k_q8_1_cuda(
mul_mat_vec_q_cuda<GGML_TYPE_IQ4_K>(vx, vy, dst, ncols_x, nrows_x, nrows_y, ncols_y, nrows_dst, stream);
}
+static void mul_mat_vec_iq2_k_q8_1_cuda(
+ const void * vx, const void * vy, float * dst,
+ const int ncols_x, const int nrows_x, const int nrows_y, const int ncols_y, const int nrows_dst, cudaStream_t stream) {
+
+ mul_mat_vec_q_cuda<GGML_TYPE_IQ2_K>(vx, vy, dst, ncols_x, nrows_x, nrows_y, ncols_y, nrows_dst, stream);
+}
+
static void mul_mat_vec_iq3_s_q8_1_cuda(
const void * vx, const void * vy, float * dst,
const int ncols_x, const int nrows_x, const int nrows_y, const int ncols_y, const int nrows_dst, cudaStream_t stream) {
@@ -443,6 +452,9 @@ void ggml_cuda_op_mul_mat_vec_q(
case GGML_TYPE_IQ4_K:
mul_mat_vec_iq4_k_q8_1_cuda(src0_dd_i, src1_ddq_i, dst_dd_i, ne00, row_diff, src1_padded_row_size, src1_ncols, nrows_dst, stream);
break;
+ case GGML_TYPE_IQ2_K:
+ mul_mat_vec_iq2_k_q8_1_cuda(src0_dd_i, src1_ddq_i, dst_dd_i, ne00, row_diff, src1_padded_row_size, src1_ncols, nrows_dst, stream);
+ break;
case GGML_TYPE_IQ3_S:
mul_mat_vec_iq3_s_q8_1_cuda(src0_dd_i, src1_ddq_i, dst_dd_i, ne00, row_diff, src1_padded_row_size, src1_ncols, nrows_dst, stream);
break;
diff --git a/ggml/src/ggml-cuda/vecdotq.cuh b/ggml/src/ggml-cuda/vecdotq.cuh
index 9f2b2300..97a5619f 100644
--- a/ggml/src/ggml-cuda/vecdotq.cuh
+++ b/ggml/src/ggml-cuda/vecdotq.cuh
@@ -1274,3 +1274,35 @@ static __device__ __forceinline__ float vec_dot_iq4_k_q8_1(
return d * (sumi1 * ls1 + sumi2 * ls2);
}
+#define VDR_IQ2_K_Q8_1_MMVQ 4
+#define VDR_IQ2_K_Q8_1_MMQ 4
+
+// TODO
+static __device__ __forceinline__ float vec_dot_iq2_k_q8_1(
+ const void * __restrict__ vbq, const block_q8_1 * __restrict__ bq8_1, const int & kbx, const int & iqs) {
+ return 0;
+//
+// const block_iq2_k * bq4 = (const block_iq2_k *) vbq + kbx;
+// const uint8_t * all_values = (const uint8_t *)iq4k_values;
+//
+// // iqs is 0...28
+// const int ib32 = iqs/4;
+// // Why iqs/4 ?
+// const int32_t * q8 = (const int *)bq8_1[ib32].qs;
+// const uint16_t * q4 = (const uint16_t *)bq4->qs + 8*ib32;
+// const uint16_t extra = bq4->extra >> 2*ib32;
+// int v1, v2;
+// int sumi1 = 0, sumi2 = 0;
+// for (int j = 0; j < 4; ++j) {
+// const uint32_t aux32 = q4[2*j+0] | (q4[2*j+1] << 16);
+// get_int_from_table_16_shift(aux32, extra, all_values, v1, v2);
+// sumi1 = ggml_cuda_dp4a(v1, q8[j+0], sumi1);
+// sumi2 = ggml_cuda_dp4a(v2, q8[j+4], sumi2);
+// }
+// const float d = __half2float(bq4->d) * __low2float(bq8_1[ib32].ds);
+// const uint8_t sh = bq4->scales_h[ib32/2] >> 4*(ib32%2);
+// const int ls1 = ((bq4->scales_l[ib32] & 0xf) | ((sh << 4) & 0x30)) - 32;
+// const int ls2 = ((bq4->scales_l[ib32] >> 4) | ((sh << 2) & 0x30)) - 32;
+// return d * (sumi1 * ls1 + sumi2 * ls2);
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-17 20:24:52 +0000