llama.cpp/ggml/src/ggml-cuda/acc.cu
Georgi Gerganov f3f65429c4
llama : reorganize source code + improve CMake (#8006)
* scripts : update sync [no ci]

* files : relocate [no ci]

* ci : disable kompute build [no ci]

* cmake : fixes [no ci]

* server : fix mingw build

ggml-ci

* cmake : minor [no ci]

* cmake : link math library [no ci]

* cmake : build normal ggml library (not object library) [no ci]

* cmake : fix kompute build

ggml-ci

* make,cmake : fix LLAMA_CUDA + replace GGML_CDEF_PRIVATE

ggml-ci

* move public backend headers to the public include directory (#8122)

* move public backend headers to the public include directory

* nix test

* spm : fix metal header

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Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

* scripts : fix sync paths [no ci]

* scripts : sync ggml-blas.h [no ci]

---------

Co-authored-by: slaren <slarengh@gmail.com>
2024-06-26 18:33:02 +03:00

48 lines
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#include "acc.cuh"
static __global__ void acc_f32(const float * x, const float * y, float * dst, const int ne,
const int ne10, const int ne11, const int ne12,
const int nb1, const int nb2, int offset) {
const int i = blockDim.x * blockIdx.x + threadIdx.x;
if (i >= ne) {
return;
}
int src1_idx = i - offset;
int oz = src1_idx / nb2;
int oy = (src1_idx - (oz * nb2)) / nb1;
int ox = src1_idx % nb1;
if (src1_idx >= 0 && ox < ne10 && oy < ne11 && oz < ne12) {
dst[i] = x[i] + y[ox + oy * ne10 + oz * ne10 * ne11];
} else {
dst[i] = x[i];
}
}
static void acc_f32_cuda(const float * x, const float * y, float * dst, const int n_elements,
const int ne10, const int ne11, const int ne12,
const int nb1, const int nb2, const int offset, cudaStream_t stream) {
int num_blocks = (n_elements + CUDA_ACC_BLOCK_SIZE - 1) / CUDA_ACC_BLOCK_SIZE;
acc_f32<<<num_blocks, CUDA_ACC_BLOCK_SIZE, 0, stream>>>(x, y, dst, n_elements, ne10, ne11, ne12, nb1, nb2, offset);
}
void ggml_cuda_op_acc(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
const ggml_tensor * src0 = dst->src[0];
const ggml_tensor * src1 = dst->src[1];
const float * src0_d = (const float *)src0->data;
const float * src1_d = (const float *)src1->data;
float * dst_d = (float *)dst->data;
cudaStream_t stream = ctx.stream();
GGML_ASSERT(src0->type == GGML_TYPE_F32);
GGML_ASSERT(src1->type == GGML_TYPE_F32);
GGML_ASSERT( dst->type == GGML_TYPE_F32);
GGML_ASSERT(dst->ne[3] == 1); // just 3D tensors supported
int nb1 = dst->op_params[0] / 4; // 4 bytes of float32
int nb2 = dst->op_params[1] / 4; // 4 bytes of float32
// int nb3 = dst->op_params[2] / 4; // 4 bytes of float32 - unused
int offset = dst->op_params[3] / 4; // offset in bytes
acc_f32_cuda(src0_d, src1_d, dst_d, ggml_nelements(dst), src1->ne[0], src1->ne[1], src1->ne[2], nb1, nb2, offset, stream);
}