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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/wkv.cu
downloadllmnpc-b333b06772c89d96aacb5490d6a219fba7c09cc6.tar.gz
Engage!
Diffstat (limited to 'llama.cpp/ggml/src/ggml-cuda/wkv.cu')
-rw-r--r--llama.cpp/ggml/src/ggml-cuda/wkv.cu199
1 files changed, 199 insertions, 0 deletions
diff --git a/llama.cpp/ggml/src/ggml-cuda/wkv.cu b/llama.cpp/ggml/src/ggml-cuda/wkv.cu
new file mode 100644
index 0000000..d2fced7
--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-cuda/wkv.cu
@@ -0,0 +1,199 @@
+#include "common.cuh"
+#include "wkv.cuh"
+
+template <int block_size>
+static __global__ void rwkv_wkv_f32(const int B, const int T, const int C, const int H, const float * k, const float * v, const float * r, const float * tf, const float * td, const float * s, float * dst) {
+ const int tid = threadIdx.x;
+ const int bid = blockIdx.x;
+
+ const int head_size = block_size;
+ const int batch_i = bid / H;
+ const int head_i = bid % H;
+ const int state_size = C * head_size;
+ const int n_seq_tokens = T / B;
+
+ float state[head_size];
+ __shared__ float _k[head_size], _r[head_size], _tf[head_size], _td[head_size];
+
+ #pragma unroll
+ for (int i = 0; i < head_size; i++) {
+ state[i] = s[batch_i * state_size + head_i * head_size * head_size + i * head_size + tid];
+ }
+
+ __syncthreads();
+ _tf[tid] = tf[head_i * head_size + tid];
+ __syncthreads();
+
+ for (int t = batch_i * n_seq_tokens * C + head_i * head_size + tid; t < (batch_i + 1) * n_seq_tokens * C + head_i * head_size + tid; t += C) {
+ __syncthreads();
+ _k[tid] = k[t];
+ _r[tid] = r[t];
+ _td[tid] = td[t];
+ __syncthreads();
+
+ const float _v = v[t];
+ float y = 0;
+ for (int j = 0; j < head_size; j += 4) {
+ const float4& k = (float4&)(_k[j]);
+ const float4& r = (float4&)(_r[j]);
+ const float4& tf = (float4&)(_tf[j]);
+ const float4& td = (float4&)(_td[j]);
+ float4& s = (float4&)(state[j]);
+ float4 kv;
+
+ kv.x = k.x * _v;
+ kv.y = k.y * _v;
+ kv.z = k.z * _v;
+ kv.w = k.w * _v;
+
+ y += r.x * (tf.x * kv.x + s.x);
+ y += r.y * (tf.y * kv.y + s.y);
+ y += r.z * (tf.z * kv.z + s.z);
+ y += r.w * (tf.w * kv.w + s.w);
+
+ s.x = s.x * td.x + kv.x;
+ s.y = s.y * td.y + kv.y;
+ s.z = s.z * td.z + kv.z;
+ s.w = s.w * td.w + kv.w;
+ }
+ dst[t] = y;
+ }
+
+ #pragma unroll
+ for (int i = 0; i < head_size; i++) {
+ dst[T * C + batch_i * state_size + head_i * head_size * head_size + i * head_size + tid] = state[i];
+ }
+}
+
+template <int block_size>
+static __global__ void rwkv_wkv7_f32(const int B, const int T, const int C, const int H, const float * r, const float * w, const float * k, const float * v, const float * a, const float * b, const float * s, float * dst) {
+ const int tid = threadIdx.x;
+ const int bid = blockIdx.x;
+
+ const int head_size = block_size;
+ const int batch_i = bid / H;
+ const int head_i = bid % H;
+ const int state_size = C * head_size;
+ const int n_seq_tokens = T / B;
+
+ float state[head_size];
+ __shared__ float _r[head_size], _w[head_size], _k[head_size], _a[head_size], _b[head_size];
+
+#ifndef GGML_USE_MUSA
+ #pragma unroll
+#endif
+ for (int i = 0; i < head_size; i++) {
+ state[i] = s[batch_i * state_size + head_i * head_size * head_size + tid * head_size + i];
+ }
+
+ for (int t = batch_i * n_seq_tokens * C + head_i * head_size + tid; t < (batch_i + 1) * n_seq_tokens * C + head_i * head_size + tid; t += C) {
+ __syncthreads();
+ _r[tid] = r[t];
+ _w[tid] = w[t];
+ _k[tid] = k[t];
+ _a[tid] = a[t];
+ _b[tid] = b[t];
+ __syncthreads();
+
+ float sa = 0;
+ #pragma unroll
+ for (int j = 0; j < head_size; j += 4)
+ {
+ const float4& a = (float4&)(_a[j]);
+ const float4& s = (float4&)(state[j]);
+ sa += a.x * s.x;
+ sa += a.y * s.y;
+ sa += a.z * s.z;
+ sa += a.w * s.w;
+ }
+
+ const float _v = v[t];
+ float y = 0;
+ for (int j = 0; j < head_size; j += 4) {
+ const float4& r = (float4&)(_r[j]);
+ const float4& w = (float4&)(_w[j]);
+ const float4& k = (float4&)(_k[j]);
+ const float4& b = (float4&)(_b[j]);
+ float4& s = (float4&)(state[j]);
+ float4 kv;
+
+ kv.x = k.x * _v;
+ kv.y = k.y * _v;
+ kv.z = k.z * _v;
+ kv.w = k.w * _v;
+
+ s.x = s.x * w.x + kv.x + sa * b.x;
+ s.y = s.y * w.y + kv.y + sa * b.y;
+ s.z = s.z * w.z + kv.z + sa * b.z;
+ s.w = s.w * w.w + kv.w + sa * b.w;
+
+ y += s.x * r.x;
+ y += s.y * r.y;
+ y += s.z * r.z;
+ y += s.w * r.w;
+ }
+ dst[t] = y;
+ }
+
+ #pragma unroll
+ for (int i = 0; i < head_size; i++) {
+ dst[T * C + batch_i * state_size + head_i * head_size * head_size + tid * head_size + i] = state[i];
+ }
+}
+
+void ggml_cuda_op_rwkv_wkv6(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+ const float * k_d = (const float *)dst->src[0]->data;
+ const float * v_d = (const float *)dst->src[1]->data;
+ const float * r_d = (const float *)dst->src[2]->data;
+ const float * tf_d = (const float *)dst->src[3]->data;
+ const float * td_d = (const float *)dst->src[4]->data;
+ const float * s_d = (const float *)dst->src[5]->data;
+
+ const int64_t B = dst->src[5]->ne[1];
+ const int64_t T = dst->src[0]->ne[2];
+ const int64_t C = dst->ne[0];
+ const int64_t H = dst->src[0]->ne[1];
+
+ float * dst_d = (float *)dst->data;
+
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(dst->src[5]->type == GGML_TYPE_F32);
+ GGML_ASSERT(C % H == 0);
+ GGML_ASSERT(C / H == CUDA_WKV_BLOCK_SIZE || C / H == CUDA_WKV_BLOCK_SIZE * 2);
+
+ if (C / H == CUDA_WKV_BLOCK_SIZE) {
+ rwkv_wkv_f32<CUDA_WKV_BLOCK_SIZE><<<B * H, C / H, 0, stream>>>(B, T, C, H, k_d, v_d, r_d, tf_d, td_d, s_d, dst_d);
+ } else {
+ rwkv_wkv_f32<CUDA_WKV_BLOCK_SIZE * 2><<<B * H, C / H, 0, stream>>>(B, T, C, H, k_d, v_d, r_d, tf_d, td_d, s_d, dst_d);
+ }
+}
+
+void ggml_cuda_op_rwkv_wkv7(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
+ const float * r_d = (const float *)dst->src[0]->data;
+ const float * w_d = (const float *)dst->src[1]->data;
+ const float * k_d = (const float *)dst->src[2]->data;
+ const float * v_d = (const float *)dst->src[3]->data;
+ const float * a_d = (const float *)dst->src[4]->data;
+ const float * b_d = (const float *)dst->src[5]->data;
+ const float * s_d = (const float *)dst->src[6]->data;
+
+ const int64_t B = dst->src[6]->ne[1];
+ const int64_t T = dst->src[0]->ne[2];
+ const int64_t C = dst->ne[0];
+ const int64_t H = dst->src[0]->ne[1];
+
+ float * dst_d = (float *)dst->data;
+
+ cudaStream_t stream = ctx.stream();
+
+ GGML_ASSERT(dst->src[6]->type == GGML_TYPE_F32);
+ GGML_ASSERT(C % H == 0);
+ GGML_ASSERT(C / H == CUDA_WKV_BLOCK_SIZE || C / H == CUDA_WKV_BLOCK_SIZE * 2);
+
+ if (C / H == CUDA_WKV_BLOCK_SIZE) {
+ rwkv_wkv7_f32<CUDA_WKV_BLOCK_SIZE><<<B * H, C / H, 0, stream>>>(B, T, C, H, r_d, w_d, k_d, v_d, a_d, b_d, s_d, dst_d);
+ } else {
+ rwkv_wkv7_f32<CUDA_WKV_BLOCK_SIZE * 2><<<B * H, C / H, 0, stream>>>(B, T, C, H, r_d, w_d, k_d, v_d, a_d, b_d, s_d, dst_d);
+ }
+}