Lumpiasty/llama.cpp
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

CUDA: fix non-cont. inputs for batched mat mul (#13155)

Browse Source
This commit is contained in:
Johannes Gäßler
2025-04-29 16:00:27 +02:00
committed by GitHub
parent 7d3af70b08
commit cdf76586b2
4 changed files with 94 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ggml/src/ggml-cuda/convert.cu
+41 -12
View File
@@ -1,6 +1,8 @@
#include "convert.cuh"
#include "dequantize.cuh"
#include <cstdint>
#define CUDA_Q8_0_NE_ALIGN 2048
template <int qk, int qr, dequantize_kernel_t dequantize_kernel, typename dst_t>
@@ -570,30 +572,46 @@ static void dequantize_row_iq4_xs_cuda(const void * vx, dst_t * y, const int64_t
}
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;
static __global__ void convert_unary(
const void * __restrict__ vx, dst_t * __restrict__ y, const int64_t ne00, const int64_t ne01, const int64_t ne02,
const int64_t s01, const int64_t s02, const int64_t s03) {
const int64_t i00 = (int64_t)blockDim.x*blockIdx.x + threadIdx.x;
if (i >= k) {
if (i00 >= ne00) {
return;
}
const int64_t i01 = blockIdx.y;
const int64_t i02 = blockIdx.z % ne02;
const int64_t i03 = blockIdx.z / ne02;
const src_t * x = (const src_t *) vx;
y[i] = float(x[i]);
const int64_t ix = i03*s03 + i02*s02 + i01*s01 + i00;
const int64_t iy = ((i03*ne02 + i02)*ne01 + i01)*ne00 + i00;
y[iy] = float(x[ix]);
}
template <typename src_t, typename dst_t>
static void convert_unary_cuda(const void * __restrict__ vx, dst_t * __restrict__ y, const int64_t k, cudaStream_t stream) {
const int num_blocks = (k + CUDA_DEQUANTIZE_BLOCK_SIZE - 1) / CUDA_DEQUANTIZE_BLOCK_SIZE;
convert_unary<src_t><<<num_blocks, CUDA_DEQUANTIZE_BLOCK_SIZE, 0, stream>>>(vx, y, k);
static void convert_unary_cuda(const void * vx, dst_t * y,
const int64_t ne00, const int64_t ne01, const int64_t ne02, const int64_t ne03,
const int64_t s01, const int64_t s02, const int64_t s03, cudaStream_t stream) {
const dim3 num_blocks((ne00 + CUDA_DEQUANTIZE_BLOCK_SIZE - 1) / CUDA_DEQUANTIZE_BLOCK_SIZE, ne01, ne02*ne03);
convert_unary<src_t><<<num_blocks, CUDA_DEQUANTIZE_BLOCK_SIZE, 0, stream>>>
(vx, y, ne00, ne01, ne02, s01, s02, s03);
}
template <typename src_t, typename dst_t>
static void convert_unary_cont_cuda(const void * vx, dst_t * y, const int64_t k, cudaStream_t stream) {
convert_unary_cuda<src_t>(vx, y, k, 1, 1, 1, k, k, k, stream);
}
to_bf16_cuda_t ggml_get_to_bf16_cuda(ggml_type type) {
switch (type) {
case GGML_TYPE_F32:
return convert_unary_cuda<float>;
return convert_unary_cont_cuda<float>;
case GGML_TYPE_F16:
return convert_unary_cuda<half>;
return convert_unary_cont_cuda<half>;
default:
return nullptr;
}
@@ -643,9 +661,9 @@ to_fp16_cuda_t ggml_get_to_fp16_cuda(ggml_type type) {
case GGML_TYPE_IQ3_S:
return dequantize_row_iq3_s_cuda;
case GGML_TYPE_F32:
return convert_unary_cuda<float>;
return convert_unary_cont_cuda<float>;
case GGML_TYPE_BF16:
return convert_unary_cuda<nv_bfloat16>;
return convert_unary_cont_cuda<nv_bfloat16>;
default:
return nullptr;
}
@@ -692,7 +710,18 @@ to_fp32_cuda_t ggml_get_to_fp32_cuda(ggml_type type) {
case GGML_TYPE_IQ3_S:
return dequantize_row_iq3_s_cuda;
case GGML_TYPE_F16:
return convert_unary_cuda<half>;
return convert_unary_cont_cuda<half>;
case GGML_TYPE_BF16:
return convert_unary_cont_cuda<nv_bfloat16>;
default:
return nullptr;
}
}
to_fp16_nc_cuda_t ggml_get_to_fp16_nc_cuda(ggml_type type) {
switch (type) {
case GGML_TYPE_F32:
return convert_unary_cuda<float>;
case GGML_TYPE_BF16:
return convert_unary_cuda<nv_bfloat16>;
default: