Optimize RWKV6 Operator Naming and Implement Multi-core CPU/ SYCL Acceleration (#10133)

* rwkv6: rename to wkv6

* rwkv6: support avx2 avx512 armv8 armv9

* rwkv6: update cuda file name

* rwkv6: rename params

* wkv on sycl

* sycl: add some ops

* sycl: Enhance OP support judgment

* wkv6: drop armv9 and tranfer to GGML style

ggml-ci

* sync : ggml

* update the function to use appropriate types

* fix define error

* Update ggml/src/ggml-cpu.c

* add appropriate asserts

* move element-wise functions outside

* put the declaration outside the loop

* rewrite to be more inline with the common pattern for distributing threads

* use recommended way GGML_TENSOR_LOCALS

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
Co-authored-by: Diego Devesa <slarengh@gmail.com>
Co-authored-by: Plamen Minev <pacominev@gmail.com>
Co-authored-by: Yuri Khrustalev <ykhrustalev@users.noreply.github.com>
Co-authored-by: Meng, Hengyu <airdldl@163.com>

ggml/src/ggml-sycl/wkv6.cpp

@@ -0,0 +1,138 @@
+#include <sycl/sycl.hpp>
+#include "wkv6.hpp"
+
+constexpr int WKV_BLOCK_SIZE = 64;  // Matching CUDA_WKV_BLOCK_SIZE
+
+// Helper function for the main kernel
+static void rwkv_wkv_f32_kernel(
+    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 sycl::nd_item<3>& item_ct1, float* shared_mem) {
+
+    const int tid = item_ct1.get_local_id(2);
+    const int bid = item_ct1.get_group(2);
+
+    const int head_size = WKV_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;
+
+    // Set up shared memory pointers
+    float* _k = shared_mem;
+    float* _r = _k + head_size;
+    float* _tf = _r + head_size;
+    float* _td = _tf + head_size;
+
+    // Local state array
+    float state[WKV_BLOCK_SIZE];
+
+    // Load initial state
+    #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];
+    }
+
+    // Sync threads before shared memory operations
+    item_ct1.barrier(sycl::access::fence_space::local_space);
+
+    // Load time-mixing parameters
+    _tf[tid] = tf[head_i * head_size + tid];
+    item_ct1.barrier(sycl::access::fence_space::local_space);
+
+    // Main sequence processing loop
+    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) {
+
+        item_ct1.barrier(sycl::access::fence_space::local_space);
+
+        // Load current timestep data to shared memory
+        _k[tid] = k[t];
+        _r[tid] = r[t];
+        _td[tid] = td[t];
+
+        item_ct1.barrier(sycl::access::fence_space::local_space);
+
+        const float _v = v[t];
+        float y = 0;
+
+        // Process in chunks of 4 for better vectorization
+        sycl::float4 k4, r4, tf4, td4, s4, kv4;
+        #pragma unroll
+        for (int j = 0; j < head_size; j += 4) {
+            // Load data in vec4 chunks
+            k4 = sycl::float4(_k[j], _k[j+1], _k[j+2], _k[j+3]);
+            r4 = sycl::float4(_r[j], _r[j+1], _r[j+2], _r[j+3]);
+            tf4 = sycl::float4(_tf[j], _tf[j+1], _tf[j+2], _tf[j+3]);
+            td4 = sycl::float4(_td[j], _td[j+1], _td[j+2], _td[j+3]);
+            s4 = sycl::float4(state[j], state[j+1], state[j+2], state[j+3]);
+
+            // Compute key-value product
+            sycl::float4 kv4 = k4 * _v;
+
+            // Accumulate weighted sum
+            y += sycl::dot(r4, tf4 * kv4 + s4);
+
+            // Update state
+            s4 = s4 * td4 + kv4;
+
+            // Store updated state
+            state[j] = s4.x();
+            state[j+1] = s4.y();
+            state[j+2] = s4.z();
+            state[j+3] = s4.w();
+        }
+
+        dst[t] = y;
+    }
+
+    // Save final state
+    #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];
+    }
+}
+
+void ggml_sycl_op_rwkv_wkv6(ggml_backend_sycl_context& ctx, const ggml_tensor* src0,
+    const ggml_tensor* src1, 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;
+    float* dst_d = (float*)dst->data;
+
+    const int64_t B = dst->src[5]->ne[1];
+    const int64_t T = dst->src[0]->ne[3];
+    const int64_t C = dst->ne[0];
+    const int64_t H = dst->src[0]->ne[2];
+
+    GGML_ASSERT(dst->src[5]->type == GGML_TYPE_F32);
+    GGML_ASSERT(C % H == 0);
+    GGML_ASSERT(C / H == WKV_BLOCK_SIZE); // The current sycl kernel is designed for RWKV6, HEAD_SIZE == 64
+
+    dpct::queue_ptr stream = ctx.stream();
+
+    // Calculate execution configuration
+    const size_t shared_mem_size = WKV_BLOCK_SIZE * 4 * sizeof(float); // For k, r, tf, td
+    sycl::range<3> block_dims(1, 1, C / H);
+    sycl::range<3> grid_dims(1, 1, B * H);
+
+    // Submit kernel
+    stream->submit([&](sycl::handler& cgh) {
+        sycl::local_accessor<float, 1> shared_mem_acc(shared_mem_size, cgh);
+
+        cgh.parallel_for(
+            sycl::nd_range<3>(grid_dims * block_dims, block_dims),
+            [=](sycl::nd_item<3> item_ct1) {
+                rwkv_wkv_f32_kernel(
+                    B, T, C, H, k_d, v_d, r_d, tf_d, td_d, s_d, dst_d,
+                    item_ct1, shared_mem_acc.get_pointer()
+                );
+            });
+    });
+}