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authorMitja Felicijan <mitja.felicijan@gmail.com>2026-02-12 20:57:17 +0100
committerMitja Felicijan <mitja.felicijan@gmail.com>2026-02-12 20:57:17 +0100
commitb333b06772c89d96aacb5490d6a219fba7c09cc6 (patch)
tree211df60083a5946baa2ed61d33d8121b7e251b06 /llama.cpp/ggml/src/ggml-cuda/norm.cu
downloadllmnpc-b333b06772c89d96aacb5490d6a219fba7c09cc6.tar.gz
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Diffstat (limited to 'llama.cpp/ggml/src/ggml-cuda/norm.cu')
-rw-r--r--llama.cpp/ggml/src/ggml-cuda/norm.cu672
1 files changed, 672 insertions, 0 deletions
diff --git a/llama.cpp/ggml/src/ggml-cuda/norm.cu b/llama.cpp/ggml/src/ggml-cuda/norm.cu
new file mode 100644
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--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-cuda/norm.cu
@@ -0,0 +1,672 @@
+#include "norm.cuh"
+#include <cstdint>
+
+template <int block_size>
+static __global__ void norm_f32(
+ const float * x, float * dst, const int ncols, const int64_t stride_row, const int64_t stride_channel,
+ const int64_t stride_sample, const float eps) {
+ const int nrows = gridDim.x;
+ const int nchannels = gridDim.y;
+
+ const int row = blockIdx.x;
+ const int channel = blockIdx.y;
+ const int sample = blockIdx.z;
+ const int tid = threadIdx.x;
+
+ x += sample*stride_sample + channel*stride_channel + row*stride_row;
+ dst += ((sample*nchannels + channel)*nrows + row)*ncols;
+
+ float2 mean_var = make_float2(0.0f, 0.0f);
+
+ for (int col = tid; col < ncols; col += block_size) {
+ const float xi = x[col];
+ mean_var.x += xi;
+ mean_var.y += xi * xi;
+ }
+
+ // sum up partial sums
+ extern __shared__ float2 s_sum2[];
+ mean_var = block_reduce<block_reduce_method::SUM, block_size>(mean_var, s_sum2);
+
+ const float mean = mean_var.x / ncols;
+ const float var = mean_var.y / ncols - mean * mean;
+ const float inv_std = rsqrtf(var + eps);
+
+ for (int col = tid; col < ncols; col += block_size) {
+ dst[col] = (x[col] - mean) * inv_std;
+ }
+}
+
+template <int block_size>
+static __global__ void group_norm_f32(const float * x, float * dst, const int group_size, const int ne_elements, const float eps) {
+ // blockIdx.x: num_groups idx
+ // threadIdx.x: block_size idx
+ const int start = blockIdx.x*group_size + threadIdx.x;
+ const int end = min(blockIdx.x*group_size + group_size, ne_elements);
+
+ float tmp = 0.0f; // partial sum for thread in warp
+
+ for (int j = start; j < end; j += block_size) {
+ tmp += x[j];
+ }
+
+ extern __shared__ float s_sum[];
+ tmp = block_reduce<block_reduce_method::SUM, block_size>(tmp, s_sum);
+
+ const float mean = tmp / group_size;
+ tmp = 0.0f;
+
+ for (int j = start; j < end; j += block_size) {
+ const float xi = x[j] - mean;
+ dst[j] = xi;
+ tmp += xi * xi;
+ }
+
+ tmp = block_reduce<block_reduce_method::SUM, block_size>(tmp, s_sum);
+
+ const float variance = tmp / group_size;
+ const float scale = rsqrtf(variance + eps);
+ for (int j = start; j < end; j += block_size) {
+ dst[j] *= scale;
+ }
+}
+
+template <int block_size, bool do_multiply = false, bool do_add = false>
+static __global__ void rms_norm_f32(const float * x,
+ float * dst,
+ const int ncols,
+ const int64_t stride_row,
+ const int64_t stride_channel,
+ const int64_t stride_sample,
+ const float eps,
+ const float * mul = nullptr,
+ const int64_t mul_stride_row = 0,
+ const int64_t mul_stride_channel = 0,
+ const int64_t mul_stride_sample = 0,
+ const uint3 mul_ncols_packed = make_uint3(0, 0, 0),
+ const uint3 mul_nrows_packed = make_uint3(0, 0, 0),
+ const uint3 mul_nchannels_packed = make_uint3(0, 0, 0),
+ const uint3 mul_nsamples_packed = make_uint3(0, 0, 0),
+ const float * add = nullptr,
+ const int64_t add_stride_row = 0,
+ const int64_t add_stride_channel = 0,
+ const int64_t add_stride_sample = 0,
+ const uint3 add_ncols_packed = make_uint3(0, 0, 0),
+ const uint3 add_nrows_packed = make_uint3(0, 0, 0),
+ const uint3 add_nchannels_packed = make_uint3(0, 0, 0),
+ const uint3 add_nsamples_packed = make_uint3(0, 0, 0)) {
+ const int nrows = gridDim.x;
+ const int nchannels = gridDim.y;
+
+ const int row = blockIdx.x;
+ const int channel = blockIdx.y;
+ const int sample = blockIdx.z;
+ const int tid = threadIdx.x;
+
+ static_assert(!do_add || do_multiply, "fusing add is not supported without multiplying");
+
+ x += sample*stride_sample + channel*stride_channel + row*stride_row;
+ dst += ((sample*nchannels + channel)*nrows + row)*ncols;
+
+ if constexpr (do_multiply) {
+ const uint32_t mul_row = fastmodulo(row, mul_nrows_packed);
+ const uint32_t mul_channel = fastmodulo(channel, mul_nchannels_packed);
+ const uint32_t mul_sample = fastmodulo(sample, mul_nsamples_packed);
+ mul += mul_sample * mul_stride_sample + mul_channel * mul_stride_channel + mul_row * mul_stride_row;
+ }
+
+ if constexpr (do_add) {
+ const int add_row = fastmodulo(row, add_nrows_packed);
+ const int add_channel = fastmodulo(channel, add_nchannels_packed);
+ const int add_sample = fastmodulo(sample, add_nsamples_packed);
+ add += add_sample * add_stride_sample + add_channel * add_stride_channel + add_row * add_stride_row;
+ }
+
+ float tmp = 0.0f; // partial sum for thread in warp
+
+ for (int col = tid; col < ncols; col += block_size) {
+ const float xi = x[col];
+ tmp += xi * xi;
+ }
+
+ // sum up partial sums
+ extern __shared__ float s_sum[];
+ tmp = block_reduce<block_reduce_method::SUM, block_size>(tmp, s_sum);
+
+ const float mean = tmp / ncols;
+ const float scale = rsqrtf(mean + eps);
+
+ for (int col = tid; col < ncols; col += block_size) {
+ if constexpr (do_multiply && do_add) {
+ const int mul_col = fastmodulo(col, mul_ncols_packed);
+ const int add_col = fastmodulo(col, add_ncols_packed);
+ dst[col] = scale * x[col] * mul[mul_col] + add[add_col];
+ } else if constexpr (do_multiply) {
+ const int mul_col = fastmodulo(col, mul_ncols_packed);
+ dst[col] = scale * x[col] * mul[mul_col];
+ } else {
+ dst[col] = scale * x[col];
+ }
+ }
+}
+
+template <int block_size>
+static __global__ void rms_norm_back_f32(
+ const float * grad, const float * xf, float * dst, const int ncols, const float eps) {
+ const int row = blockIdx.x*blockDim.y + threadIdx.y;
+ const int tid = threadIdx.x;
+
+ grad += int64_t(row)*ncols;
+ xf += int64_t(row)*ncols;
+ dst += int64_t(row)*ncols;
+
+ float sum_xx = 0.0f; // sum for squares of x, equivalent to forward pass
+ float sum_xg = 0.0f; // sum for x * gradient, needed because RMS norm mixes inputs
+
+ for (int col = tid; col < ncols; col += block_size) {
+ const float xfi = xf[col];
+ sum_xx += xfi * xfi;
+ sum_xg += xfi * grad[col];
+ }
+
+ // sum up partial sums
+ sum_xx = warp_reduce_sum(sum_xx);
+ sum_xg = warp_reduce_sum(sum_xg);
+ if constexpr (block_size > WARP_SIZE) {
+ static_assert(block_size == 1024, "unexpected block_size");
+ __shared__ float s_sum_xx[32];
+ __shared__ float s_sum_xg[32];
+ const int warp_id = threadIdx.x / WARP_SIZE;
+ const int lane_id = threadIdx.x % WARP_SIZE;
+ if (lane_id == 0) {
+ s_sum_xx[warp_id] = sum_xx;
+ s_sum_xg[warp_id] = sum_xg;
+ }
+ __syncthreads();
+
+ sum_xx = s_sum_xx[lane_id];
+ sum_xx = warp_reduce_sum(sum_xx);
+
+ sum_xg = s_sum_xg[lane_id];
+ sum_xg = warp_reduce_sum(sum_xg);
+ }
+
+ const float mean_eps = sum_xx / ncols + eps;
+ const float sum_eps = sum_xx + ncols*eps;
+
+ const float scale_grad = rsqrtf(mean_eps);
+ const float scale_x = -scale_grad * sum_xg/sum_eps;
+
+ for (int col = tid; col < ncols; col += block_size) {
+ dst[col] = scale_grad*grad[col] + scale_x*xf[col];
+ }
+}
+
+// template <int block_size>
+// static __global__ void l2_norm_f32(const float * x, float * dst, const int ncols, const float eps) {
+// const int row = blockIdx.x*blockDim.y + threadIdx.y;
+// const int tid = threadIdx.x;
+
+// float tmp = 0.0f; // partial sum for thread in warp
+
+// for (int col = tid; col < ncols; col += block_size) {
+// const float xi = x[row*ncols + col];
+// tmp += xi * xi;
+// }
+
+// // sum up partial sums
+// tmp = warp_reduce_sum(tmp);
+// if (block_size > WARP_SIZE) {
+// __shared__ float s_sum[32];
+// int warp_id = threadIdx.x / WARP_SIZE;
+// int lane_id = threadIdx.x % WARP_SIZE;
+// if (lane_id == 0) {
+// s_sum[warp_id] = tmp;
+// }
+// __syncthreads();
+// tmp = s_sum[lane_id];
+// tmp = warp_reduce_sum(tmp);
+// }
+
+// // from https://pytorch.org/docs/stable/generated/torch.nn.functional.normalize.html
+// const float scale = rsqrtf(fmaxf(tmp, eps * eps));
+
+// for (int col = tid; col < ncols; col += block_size) {
+// dst[row*ncols + col] = scale * x[row*ncols + col];
+// }
+// }
+
+template <int block_size>
+static __global__ void l2_norm_f32(
+ const float * x, float * dst, const int ncols, const int64_t stride_row, const int64_t stride_channel,
+ const int64_t stride_sample, const float eps) {
+ const int nrows = gridDim.x;
+ const int nchannels = gridDim.y;
+
+ const int row = blockIdx.x;
+ const int channel = blockIdx.y;
+ const int sample = blockIdx.z;
+ const int tid = threadIdx.x;
+
+ x += sample*stride_sample + channel*stride_channel + row*stride_row;
+ dst += ((sample*nchannels + channel)*nrows + row)*ncols;
+
+ float tmp = 0.0f; // partial sum for thread in warp
+
+ for (int col = tid; col < ncols; col += block_size) {
+ const float xi = x[col];
+ tmp += xi * xi;
+ }
+
+ // sum up partial sums
+ extern __shared__ float s_sum[];
+ tmp = block_reduce<block_reduce_method::SUM, block_size>(tmp, s_sum);
+
+ // from https://pytorch.org/docs/stable/generated/torch.nn.functional.normalize.html
+ const float scale = rsqrtf(fmaxf(tmp, eps * eps));
+
+ for (int col = tid; col < ncols; col += block_size) {
+ dst[col] = scale * x[col];
+ }
+}
+
+static void norm_f32_cuda(
+ const float * x, float * dst, const int ncols, const int nrows, const int nchannels, const int nsamples,
+ const int64_t stride_row, const int64_t stride_channel, const int64_t stride_sample, const float eps, cudaStream_t stream) {
+ const dim3 blocks_num(nrows, nchannels, nsamples);
+ if (ncols < 1024) {
+ const dim3 block_dims(WARP_SIZE, 1, 1);
+ norm_f32<WARP_SIZE><<<blocks_num, block_dims, 0, stream>>>(x, dst, ncols, stride_row, stride_channel, stride_sample, eps);
+ } else {
+ const dim3 block_dims(1024, 1, 1);
+ norm_f32<1024><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float2): 0, stream>>>(x, dst, ncols, stride_row, stride_channel, stride_sample, eps);
+ }
+}
+
+static void group_norm_f32_cuda(
+ const float * x, float * dst, const int num_groups, const float eps, const int group_size, const int ne_elements, cudaStream_t stream) {
+ if (group_size < 1024) {
+ const dim3 block_dims(WARP_SIZE, 1, 1);
+ group_norm_f32<WARP_SIZE><<<num_groups, block_dims, 0, stream>>>(x, dst, group_size, ne_elements, eps);
+ } else {
+ const dim3 block_dims(1024, 1, 1);
+ group_norm_f32<1024><<<num_groups, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(x, dst, group_size, ne_elements, eps);
+ }
+}
+
+static void rms_norm_f32_cuda(
+ const float * x, float * dst, const int ncols, const int nrows, const int nchannels, const int nsamples,
+ const int64_t stride_row, const int64_t stride_channel, const int64_t stride_sample, const float eps, cudaStream_t stream) {
+ const dim3 blocks_num(nrows, nchannels, nsamples);
+ if (ncols < 1024) {
+ const dim3 block_dims(256, 1, 1);
+ rms_norm_f32<256, false><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(x, dst, ncols, stride_row, stride_channel, stride_sample, eps);
+ } else {
+ const dim3 block_dims(1024, 1, 1);
+ rms_norm_f32<1024, false><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(x, dst, ncols, stride_row, stride_channel, stride_sample, eps);
+ }
+}
+
+static void rms_norm_mul_f32_cuda(const float * x,
+ const float * mul,
+ const float * add,
+ float * dst,
+ const int ncols,
+ const int nrows,
+ const int nchannels,
+ const int nsamples,
+ const int64_t stride_row,
+ const int64_t stride_channel,
+ const int64_t stride_sample,
+ const int64_t mul_stride_row,
+ const int64_t mul_stride_channel,
+ const int64_t mul_stride_sample,
+ const uint32_t mul_ncols,
+ const uint32_t mul_nrows,
+ const uint32_t mul_nchannels,
+ const uint32_t mul_nsamples,
+ const int64_t add_stride_row,
+ const int64_t add_stride_channel,
+ const int64_t add_stride_sample,
+ const uint32_t add_ncols,
+ const uint32_t add_nrows,
+ const uint32_t add_nchannels,
+ const uint32_t add_nsamples,
+ const float eps,
+ cudaStream_t stream) {
+ const dim3 blocks_num(nrows, nchannels, nsamples);
+ if (mul == nullptr) {
+ rms_norm_f32_cuda(x, dst, ncols, nrows, nchannels, nsamples, stride_row, stride_channel, stride_sample, eps, stream);
+ return;
+ }
+ if (add == nullptr) {
+ const uint3 mul_ncols_packed = init_fastdiv_values(mul_ncols);
+ const uint3 mul_nrows_packed = init_fastdiv_values(mul_nrows);
+ const uint3 mul_nchannels_packed = init_fastdiv_values(mul_nchannels);
+ const uint3 mul_nsamples_packed = init_fastdiv_values(mul_nsamples);
+ if (ncols < 1024) {
+ const dim3 block_dims(256, 1, 1);
+ rms_norm_f32<256, true><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(
+ x, dst, ncols, stride_row, stride_channel, stride_sample, eps, mul, mul_stride_row, mul_stride_channel,
+ mul_stride_sample, mul_ncols_packed, mul_nrows_packed, mul_nchannels_packed, mul_nsamples_packed);
+ } else {
+ const dim3 block_dims(1024, 1, 1);
+ rms_norm_f32<1024, true><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(
+ x, dst, ncols, stride_row, stride_channel, stride_sample, eps, mul, mul_stride_row, mul_stride_channel,
+ mul_stride_sample, mul_ncols_packed, mul_nrows_packed, mul_nchannels_packed, mul_nsamples_packed);
+ }
+ } else {
+ const uint3 mul_ncols_packed = init_fastdiv_values(mul_ncols);
+ const uint3 mul_nrows_packed = init_fastdiv_values(mul_nrows);
+ const uint3 mul_nchannels_packed = init_fastdiv_values(mul_nchannels);
+ const uint3 mul_nsamples_packed = init_fastdiv_values(mul_nsamples);
+
+ const uint3 add_ncols_packed = init_fastdiv_values(add_ncols);
+ const uint3 add_nrows_packed = init_fastdiv_values(add_nrows);
+ const uint3 add_nchannels_packed = init_fastdiv_values(add_nchannels);
+ const uint3 add_nsamples_packed = init_fastdiv_values(add_nsamples);
+ if (ncols < 1024) {
+ const dim3 block_dims(256, 1, 1);
+ rms_norm_f32<256, true, true><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(
+ x, dst, ncols, stride_row, stride_channel, stride_sample, eps, mul, mul_stride_row, mul_stride_channel,
+ mul_stride_sample, mul_ncols_packed, mul_nrows_packed, mul_nchannels_packed, mul_nsamples_packed, add,
+ add_stride_row, add_stride_channel, add_stride_sample, add_ncols_packed, add_nrows_packed,
+ add_nchannels_packed, add_nsamples_packed);
+ } else {
+ const dim3 block_dims(1024, 1, 1);
+ rms_norm_f32<1024, true, true><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(
+ x, dst, ncols, stride_row, stride_channel, stride_sample, eps, mul, mul_stride_row, mul_stride_channel,
+ mul_stride_sample, mul_ncols_packed, mul_nrows_packed, mul_nchannels_packed, mul_nsamples_packed, add,
+ add_stride_row, add_stride_channel, add_stride_sample, add_ncols_packed, add_nrows_packed,
+ add_nchannels_packed, add_nsamples_packed);
+ }
+ }
+}
+
+static void rms_norm_back_f32_cuda(const float * grad, const float * xf, float * dst, const int ncols, const int nrows, const float eps, cudaStream_t stream) {
+ if (ncols < 1024) {
+ const dim3 block_dims(WARP_SIZE, 1, 1);
+ rms_norm_back_f32<WARP_SIZE><<<nrows, block_dims, 0, stream>>>(grad, xf, dst, ncols, eps);
+ } else {
+ const dim3 block_dims(1024, 1, 1);
+ rms_norm_back_f32<1024><<<nrows, block_dims, 0, stream>>>(grad, xf, dst, ncols, eps);
+ }
+}
+
+static void l2_norm_f32_cuda(
+ const float * x, float * dst, const int ncols, const int nrows, const int nchannels, const int nsamples,
+ const int64_t stride_row, const int64_t stride_channel, const int64_t stride_sample, const float eps, cudaStream_t stream) {
+ const dim3 blocks_num(nrows, nchannels, nsamples);
+ if (ncols < 1024) {
+ const dim3 block_dims(WARP_SIZE, 1, 1);
+ l2_norm_f32<WARP_SIZE><<<blocks_num, block_dims, 0, stream>>>(x, dst, ncols, stride_row, stride_channel, stride_sample, eps);
+ } else {
+ const dim3 block_dims(1024, 1, 1);
+ l2_norm_f32<1024><<<blocks_num, block_dims, block_dims.x > WARP_SIZE ? 32 * sizeof(float): 0, stream>>>(x, dst, ncols, stride_row, stride_channel, stride_sample, eps);
+ }
+}
+
+void ggml_cuda_op_norm(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+ const ggml_tensor * src0 = dst->src[0];
+ const float * src0_d = (const float *) src0->data;
+ float * dst_d = (float *) dst->data;
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(src0->type == GGML_TYPE_F32);
+ GGML_ASSERT( dst->type == GGML_TYPE_F32);
+
+ GGML_TENSOR_UNARY_OP_LOCALS;
+
+ float eps;
+ memcpy(&eps, dst->op_params, sizeof(float));
+ GGML_ASSERT(eps >= 0.0f);
+
+ const size_t ts0 = ggml_type_size(src0->type);
+ GGML_ASSERT(nb00 == ts0);
+ const int64_t s01 = nb01 / ts0;
+ const int64_t s02 = nb02 / ts0;
+ const int64_t s03 = nb03 / ts0;
+
+ norm_f32_cuda(src0_d, dst_d, ne00, ne01, ne02, ne03, s01, s02, s03, eps, stream);
+}
+
+void ggml_cuda_op_group_norm(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+ const ggml_tensor * src0 = dst->src[0];
+ const float * src0_d = (const float *)src0->data;
+ float * dst_d = (float *)dst->data;
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(src0->type == GGML_TYPE_F32);
+ GGML_ASSERT( dst->type == GGML_TYPE_F32);
+
+ int num_groups = dst->op_params[0];
+
+ float eps;
+ memcpy(&eps, dst->op_params + 1, sizeof(float));
+ GGML_ASSERT(eps >= 0.0f);
+
+ int group_size = src0->ne[0] * src0->ne[1] * ((src0->ne[2] + num_groups - 1) / num_groups);
+ group_norm_f32_cuda(src0_d, dst_d, num_groups * src0->ne[3], eps, group_size, ggml_nelements(src0), stream);
+}
+
+void ggml_cuda_op_rms_norm(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+ const ggml_tensor * src0 = dst->src[0];
+ const float * src0_d = (const float *) src0->data;
+ float * dst_d = (float *) dst->data;
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(src0->type == GGML_TYPE_F32);
+ GGML_ASSERT( dst->type == GGML_TYPE_F32);
+
+ GGML_TENSOR_UNARY_OP_LOCALS;
+
+ float eps;
+ memcpy(&eps, dst->op_params, sizeof(float));
+ GGML_ASSERT(eps >= 0.0f);
+
+ const size_t ts0 = ggml_type_size(src0->type);
+ GGML_ASSERT(nb00 == ts0);
+ const int64_t s01 = nb01 / ts0;
+ const int64_t s02 = nb02 / ts0;
+ const int64_t s03 = nb03 / ts0;
+
+ rms_norm_f32_cuda(src0_d, dst_d, ne00, ne01, ne02, ne03, s01, s02, s03, eps, stream);
+}
+
+void ggml_cuda_op_rms_norm_fused(ggml_backend_cuda_context & ctx, ggml_tensor * dst, ggml_tensor * mul_tensor) {
+ const ggml_tensor * rms_norm_src = (ggml_tensor *) dst->src[0];
+ float eps = 0.0f;
+
+ memcpy(&eps, dst->op_params, sizeof(float));
+
+ const float * src0_d = (const float *) rms_norm_src->data;
+ const float * mul_d = nullptr;
+ const ggml_tensor * mul_src = nullptr;
+
+ if (mul_tensor->src[0] == dst) {
+ mul_d = (float *) mul_tensor->src[1]->data;
+ mul_src = mul_tensor->src[1];
+ } else if(mul_tensor->src[1] == dst) {
+ mul_d = (float *) mul_tensor->src[0]->data;
+ mul_src = mul_tensor->src[0];
+ } else {
+ GGML_ASSERT(false);
+ }
+
+ float * dst_d = (float *) mul_tensor->data;
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(rms_norm_src->type == GGML_TYPE_F32);
+ GGML_ASSERT(dst->type == GGML_TYPE_F32);
+ GGML_ASSERT(mul_tensor->type == GGML_TYPE_F32);
+ GGML_ASSERT(eps >= 0.0f);
+
+ const int64_t ne00 = rms_norm_src->ne[0];
+ const int64_t ne01 = rms_norm_src->ne[1];
+ const int64_t ne02 = rms_norm_src->ne[2];
+ const int64_t ne03 = rms_norm_src->ne[3];
+
+ const size_t ts0 = ggml_type_size(rms_norm_src->type);
+ GGML_ASSERT(rms_norm_src->nb[0] == ts0);
+ const int64_t s01 = rms_norm_src->nb[1] / ts0;
+ const int64_t s02 = rms_norm_src->nb[2] / ts0;
+ const int64_t s03 = rms_norm_src->nb[3] / ts0;
+
+ const size_t ts_mul = ggml_type_size(mul_src->type);
+ GGML_ASSERT(mul_src->nb[0] == ts_mul);
+ const int64_t mul_s01 = mul_src->nb[1] / ts_mul;
+ const int64_t mul_s02 = mul_src->nb[2] / ts_mul;
+ const int64_t mul_s03 = mul_src->nb[3] / ts_mul;
+
+ const int mul_ncols = mul_src->ne[0];
+ const int mul_nrows = mul_src->ne[1];
+ const int mul_nchannels = mul_src->ne[2];
+ const int mul_nsamples = mul_src->ne[3];
+
+ rms_norm_mul_f32_cuda(src0_d, mul_d, nullptr, dst_d,
+ ne00, ne01, ne02, ne03,
+ /*s00*/ s01, s02, s03,
+ /*mul_s00*/ mul_s01, mul_s02, mul_s03,
+ mul_ncols, mul_nrows, mul_nchannels, mul_nsamples,
+ /*add_s00*/ 0, 0, 0,
+ 0, 0, 0, 0,
+ eps, stream);
+}
+
+void ggml_cuda_op_rms_norm_fused_add(ggml_backend_cuda_context & ctx,
+ ggml_tensor * dst,
+ ggml_tensor * mul_tensor,
+ ggml_tensor * add_tensor) {
+ const ggml_tensor * rms_norm_src = (ggml_tensor *) dst->src[0];
+ float eps = 0.0f;
+
+ memcpy(&eps, dst->op_params, sizeof(float));
+
+ const float * src0_d = (const float *) rms_norm_src->data;
+ const float * mul_d = nullptr;
+ const ggml_tensor * mul_src = nullptr;
+
+ if (mul_tensor->src[0] == dst) {
+ mul_d = (float *) mul_tensor->src[1]->data;
+ mul_src = mul_tensor->src[1];
+ } else if (mul_tensor->src[1] == dst) {
+ mul_d = (float *) mul_tensor->src[0]->data;
+ mul_src = mul_tensor->src[0];
+ } else {
+ GGML_ASSERT(false);
+ }
+
+ const float * add_d = nullptr;
+ const ggml_tensor * add_src = nullptr;
+
+ if (add_tensor->src[0] == mul_tensor) {
+ add_d = (float *) add_tensor->src[1]->data;
+ add_src = add_tensor->src[1];
+ } else if (add_tensor->src[1] == mul_tensor) {
+ add_d = (float *) add_tensor->src[0]->data;
+ add_src = add_tensor->src[0];
+ } else {
+ GGML_ASSERT(false);
+ }
+
+ float * dst_d = (float *) add_tensor->data;
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(rms_norm_src->type == GGML_TYPE_F32);
+ GGML_ASSERT(dst->type == GGML_TYPE_F32);
+ GGML_ASSERT(mul_tensor->type == GGML_TYPE_F32);
+ GGML_ASSERT(add_tensor->type == GGML_TYPE_F32);
+ GGML_ASSERT(eps >= 0.0f);
+
+ const int64_t ne00 = rms_norm_src->ne[0];
+ const int64_t ne01 = rms_norm_src->ne[1];
+ const int64_t ne02 = rms_norm_src->ne[2];
+ const int64_t ne03 = rms_norm_src->ne[3];
+
+ const size_t ts0 = ggml_type_size(rms_norm_src->type);
+ GGML_ASSERT(rms_norm_src->nb[0] == ts0);
+ const int64_t s01 = rms_norm_src->nb[1] / ts0;
+ const int64_t s02 = rms_norm_src->nb[2] / ts0;
+ const int64_t s03 = rms_norm_src->nb[3] / ts0;
+
+ const size_t ts_mul = ggml_type_size(mul_src->type);
+ GGML_ASSERT(mul_src->nb[0] == ts_mul);
+ const int64_t mul_s01 = mul_src->nb[1] / ts_mul;
+ const int64_t mul_s02 = mul_src->nb[2] / ts_mul;
+ const int64_t mul_s03 = mul_src->nb[3] / ts_mul;
+
+ const int mul_ncols = mul_src->ne[0];
+ const int mul_nrows = mul_src->ne[1];
+ const int mul_nchannels = mul_src->ne[2];
+ const int mul_nsamples = mul_src->ne[3];
+
+ const size_t ts_add = ggml_type_size(add_src->type);
+ GGML_ASSERT(add_src->nb[0] == ts_add);
+ const int64_t add_s01 = add_src->nb[1] / ts_add;
+ const int64_t add_s02 = add_src->nb[2] / ts_add;
+ const int64_t add_s03 = add_src->nb[3] / ts_add;
+
+ const int add_ncols = add_src->ne[0];
+ const int add_nrows = add_src->ne[1];
+ const int add_nchannels = add_src->ne[2];
+ const int add_nsamples = add_src->ne[3];
+
+ rms_norm_mul_f32_cuda(src0_d, mul_d,add_d,dst_d,
+ ne00,ne01, ne02, ne03,
+ /*s00*/ s01, s02, s03,
+ /*mul_s00*/ mul_s01, mul_s02, mul_s03,
+ mul_ncols, mul_nrows, mul_nchannels, mul_nsamples,
+ /*add_s00*/ add_s01, add_s02, add_s03,
+ add_ncols, add_nrows, add_nchannels, add_nsamples,
+ eps, stream);
+}
+
+void ggml_cuda_op_rms_norm_back(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+ const ggml_tensor * grad = dst->src[0]; // gradients
+ const ggml_tensor * src0f = dst->src[1]; // src0 from forward pass
+
+ const float * grad_d = (const float *) grad->data;
+ const float * src0f_d = (const float *) src0f->data;
+ float * dst_d = (float *) dst->data;
+
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(ggml_is_contiguous(grad));
+
+ GGML_ASSERT( grad->type == GGML_TYPE_F32);
+ GGML_ASSERT(src0f->type == GGML_TYPE_F32);
+ GGML_ASSERT( dst->type == GGML_TYPE_F32);
+
+ const int64_t ne00 = src0f->ne[0];
+ const int64_t nrows = ggml_nrows(src0f);
+
+ float eps;
+ memcpy(&eps, dst->op_params, sizeof(float));
+ GGML_ASSERT(eps >= 0.0f);
+
+ rms_norm_back_f32_cuda(grad_d, src0f_d, dst_d, ne00, nrows, eps, stream);
+}
+
+void ggml_cuda_op_l2_norm(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+ const ggml_tensor * src0 = dst->src[0];
+ const float * src0_d = (const float *) src0->data;
+ float * dst_d = (float *) dst->data;
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(src0->type == GGML_TYPE_F32);
+ GGML_ASSERT( dst->type == GGML_TYPE_F32);
+
+ GGML_TENSOR_UNARY_OP_LOCALS;
+
+ float eps;
+ memcpy(&eps, dst->op_params, sizeof(float));
+ GGML_ASSERT(eps >= 0.0f);
+
+ const size_t ts0 = ggml_type_size(src0->type);
+ GGML_ASSERT(nb00 == ts0);
+ const int64_t s01 = nb01 / ts0;
+ const int64_t s02 = nb02 / ts0;
+ const int64_t s03 = nb03 / ts0;
+
+ l2_norm_f32_cuda(src0_d, dst_d, ne00, ne01, ne02, ne03, s01, s02, s03, eps, stream);
+}