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			243 lines
		
	
	
		
			11 KiB
		
	
	
	
		
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			243 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| // Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
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| //
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| // Licensed under the Apache License, Version 2.0 (the "License");
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| // you may not use this file except in compliance with the License.
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| // You may obtain a copy of the License at
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| //
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| //     http://www.apache.org/licenses/LICENSE-2.0
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| //
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| // Unless required by applicable law or agreed to in writing, software
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| // distributed under the License is distributed on an "AS IS" BASIS,
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| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| // See the License for the specific language governing permissions and
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| // limitations under the License.
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| 
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| #include "helper.h"
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| 
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| // 根据上一步计算出的可以复原的query_id进行状态恢复
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| __global__ void recover_block_system_cache(int *recover_block_list, // [bsz]
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|                                            int *recover_len,
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|                                            bool *stop_flags,
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|                                            int *seq_lens_this_time,
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|                                            int *ori_seq_lens_encoder,
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|                                            int *ori_seq_lens_decoder,
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|                                            int *seq_lens_encoder,
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|                                            int *seq_lens_decoder,
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|                                            int *block_tables,
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|                                            int *free_list,
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|                                            int *free_list_len,
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|                                            int64_t *input_ids,
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|                                            int64_t *pre_ids,
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|                                            int64_t *step_idx,
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|                                            int *encoder_block_lens,
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|                                            int *used_list_len,
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|                                            const int64_t *next_tokens,
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|                                            const int64_t *first_token_ids,
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|                                            const int bsz,
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|                                            const int block_num_per_seq,
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|                                            const int length,
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|                                            const int pre_id_length) {
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|     const int bid = blockIdx.x;
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|     const int tid = threadIdx.x;
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|     __shared__ int ori_free_list_len;
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|     if (bid < recover_len[0]) {
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|         const int recover_id = recover_block_list[bid];
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|         const int ori_seq_len_encoder = ori_seq_lens_encoder[recover_id];
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|         const int step_idx_now = step_idx[recover_id];
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|         const int seq_len = ori_seq_len_encoder + step_idx_now;
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|         const int encoder_block_len = encoder_block_lens[recover_id];
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|         const int decoder_used_len = used_list_len[recover_id];
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|         int *block_table_now = block_tables + recover_id * block_num_per_seq;
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|         int64_t *input_ids_now = input_ids + recover_id * length;
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|         int64_t *pre_ids_now = pre_ids + recover_id * pre_id_length;
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|         if (tid == 0) {
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|             seq_lens_this_time[recover_id] = seq_len;
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|             seq_lens_encoder[recover_id] = seq_len;
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|             seq_lens_decoder[recover_id] = ori_seq_lens_decoder[recover_id];
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|             stop_flags[recover_id] = false;
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|             input_ids_now[ori_seq_len_encoder + step_idx_now - 1] = next_tokens[recover_id]; // next tokens
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|             input_ids_now[0] = first_token_ids[recover_id]; // set first prompt token
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|             const int ori_free_list_len_tid0 = atomicSub(free_list_len, decoder_used_len);
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|             ori_free_list_len = ori_free_list_len_tid0;
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| #ifdef DEBUG_STEP
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|             printf("seq_id: %d, ori_seq_len_encoder: %d, step_idx_now: %d, seq_len: %d, ori_free_list_len_tid0: %d, ori_free_list_len: %d\n",
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|                     recover_id, ori_seq_len_encoder, step_idx_now, seq_len, ori_free_list_len_tid0, ori_free_list_len);
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| #endif
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|         }
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|         __syncthreads();
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|         // 恢复block table
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|         for (int i = tid; i < decoder_used_len; i += blockDim.x) {
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|             block_table_now[encoder_block_len + i] = free_list[ori_free_list_len - i - 1];
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|         }
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|         // 恢复input_ids
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|         for (int i = tid; i < step_idx_now - 1; i += blockDim.x) {
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|             input_ids_now[ori_seq_len_encoder + i] = pre_ids_now[i + 1];
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|         }
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|     }
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| 
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|     if (bid == 0 && tid == 0) {
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|         recover_len[0] = 0;
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|     }
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| }
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| 
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| void StepSystemCache(const paddle::Tensor& stop_flags,
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|                      const paddle::Tensor& seq_lens_this_time,
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|                      const paddle::Tensor& ori_seq_lens_encoder,
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|                      const paddle::Tensor& ori_seq_lens_decoder,
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|                      const paddle::Tensor& seq_lens_encoder,
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|                      const paddle::Tensor& seq_lens_decoder,
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|                      const paddle::Tensor& block_tables, // [bsz, block_num_per_seq]
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|                      const paddle::Tensor& encoder_block_lens,
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|                      const paddle::Tensor& is_block_step,
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|                      const paddle::Tensor& step_block_list,
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|                      const paddle::Tensor& step_lens,
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|                      const paddle::Tensor& recover_block_list,
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|                      const paddle::Tensor& recover_lens,
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|                      const paddle::Tensor& need_block_list,
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|                      const paddle::Tensor& need_block_len,
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|                      const paddle::Tensor& used_list_len,
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|                      const paddle::Tensor& free_list,
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|                      const paddle::Tensor& free_list_len,
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|                      const paddle::Tensor& input_ids,
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|                      const paddle::Tensor& pre_ids,
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|                      const paddle::Tensor& step_idx,
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|                      const paddle::Tensor& next_tokens,
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|                      const paddle::Tensor& first_token_ids,
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|                      const int block_size,
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|                      const int encoder_decoder_block_num) {
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|     auto cu_stream = seq_lens_this_time.stream();
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|     const int bsz = seq_lens_this_time.shape()[0];
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|     const int block_num_per_seq = block_tables.shape()[1];
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|     const int length = input_ids.shape()[1];
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|     const int pre_id_length = pre_ids.shape()[1];
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|     constexpr int BlockSize = 256; // bsz <= 256
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|     const int max_decoder_block_num = length / block_size;
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|     // const int max_decoder_block_num = 2048 / block_size - encoder_decoder_block_num;
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| #ifdef DEBUG_STEP
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|     printf("bsz: %d, block_num_per_seq: %d, length: %d, max_decoder_block_num: %d\n", bsz, block_num_per_seq, length, max_decoder_block_num);
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| #endif
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|     free_and_dispatch_block<<<1, BlockSize, 0, cu_stream>>>(
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|         const_cast<bool*>(stop_flags.data<bool>()),
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|         const_cast<int*>(seq_lens_this_time.data<int>()),
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|         const_cast<int*>(seq_lens_decoder.data<int>()),
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|         const_cast<int*>(block_tables.data<int>()),
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|         const_cast<int*>(encoder_block_lens.data<int>()),
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|         const_cast<bool*>(is_block_step.data<bool>()),
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|         const_cast<int*>(step_block_list.data<int>()),
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|         const_cast<int*>(step_lens.data<int>()),
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|         const_cast<int*>(recover_block_list.data<int>()),
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|         const_cast<int*>(recover_lens.data<int>()),
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|         const_cast<int*>(need_block_list.data<int>()),
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|         const_cast<int*>(need_block_len.data<int>()),
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|         const_cast<int*>(used_list_len.data<int>()),
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|         const_cast<int*>(free_list.data<int>()),
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|         const_cast<int*>(free_list_len.data<int>()),
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|         const_cast<int64_t*>(first_token_ids.data<int64_t>()),
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|         bsz,
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|         block_size,
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|         block_num_per_seq,
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|         max_decoder_block_num
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|     );
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| #ifdef DEBUG_STEP
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|     cudaDeviceSynchronize();
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| #endif
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|     auto cpu_recover_lens = recover_lens.copy_to(paddle::CPUPlace(), false);
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|     const int grid_size = cpu_recover_lens.data<int>()[0];
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| #ifdef DEBUG_STEP
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|     printf("grid_size2 %d\n", grid_size);
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| #endif
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|     if (grid_size > 0) {
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|         recover_block_system_cache<<<grid_size, BlockSize, 0, cu_stream>>>(
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|             const_cast<int*>(recover_block_list.data<int>()),
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|             const_cast<int*>(recover_lens.data<int>()),
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|             const_cast<bool*>(stop_flags.data<bool>()),
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|             const_cast<int*>(seq_lens_this_time.data<int>()),
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|             const_cast<int*>(ori_seq_lens_encoder.data<int>()),
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|             const_cast<int*>(ori_seq_lens_decoder.data<int>()),
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|             const_cast<int*>(seq_lens_encoder.data<int>()),
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|             const_cast<int*>(seq_lens_decoder.data<int>()),
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|             const_cast<int*>(block_tables.data<int>()),
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|             const_cast<int*>(free_list.data<int>()),
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|             const_cast<int*>(free_list_len.data<int>()),
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|             const_cast<int64_t*>(input_ids.data<int64_t>()),
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|             const_cast<int64_t*>(pre_ids.data<int64_t>()),
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|             const_cast<int64_t*>(step_idx.data<int64_t>()),
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|             const_cast<int*>(encoder_block_lens.data<int>()),
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|             const_cast<int*>(used_list_len.data<int>()),
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|             next_tokens.data<int64_t>(),
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|             first_token_ids.data<int64_t>(),
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|             bsz,
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|             block_num_per_seq,
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|             length,
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|             pre_id_length
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|         );
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| #ifdef DEBUG_STEP
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|         cudaDeviceSynchronize();
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| #endif
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|     }
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| }
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| 
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| PD_BUILD_STATIC_OP(step_system_cache)
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|     .Inputs({"stop_flags",
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|              "seq_lens_this_time",
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|              "ori_seq_lens_encoder",
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|              "ori_seq_lens_decoder",
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|              "seq_lens_encoder",
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|              "seq_lens_decoder",
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|              "block_tables",
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|              "encoder_block_lens",
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|              "is_block_step",
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|              "step_block_list",
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|              "step_lens",
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|              "recover_block_list",
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|              "recover_lens",
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|              "need_block_list",
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|              "need_block_len",
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|              "used_list_len",
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|              "free_list",
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|              "free_list_len",
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|              "input_ids",
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|              "pre_ids",
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|              "step_idx",
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|              "next_tokens",
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|              "first_token_ids"})
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|     .Attrs({"block_size: int",
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|             "encoder_decoder_block_num: int"})
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|     .Outputs({"stop_flags_out",
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|               "seq_lens_this_time_out",
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|               "seq_lens_encoder_out",
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|               "seq_lens_decoder_out",
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|               "block_tables_out",
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|               "encoder_block_lens_out",
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|               "is_block_step_out",
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|               "step_block_list_out",
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|               "step_lens_out",
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|               "recover_block_list_out",
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|               "recover_lens_out",
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|               "need_block_list_out",
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|               "need_block_len_out",
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|               "used_list_len_out",
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|               "free_list_out",
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|               "free_list_len_out",
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|               "input_ids_out",
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|               "first_token_ids_out"})
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|     .SetInplaceMap({{"stop_flags", "stop_flags_out"},
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|                     {"seq_lens_this_time", "seq_lens_this_time_out"},
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|                     {"seq_lens_encoder", "seq_lens_encoder_out"},
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|                     {"seq_lens_decoder", "seq_lens_decoder_out"},
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|                     {"block_tables", "block_tables_out"},
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|                     {"encoder_block_lens", "encoder_block_lens_out"},
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|                     {"is_block_step", "is_block_step_out"},
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|                     {"step_block_list", "step_block_list_out"},
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|                     {"step_lens", "step_lens_out"},
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|                     {"recover_block_list", "recover_block_list_out"},
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|                     {"recover_lens", "recover_lens_out"},
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|                     {"need_block_list", "need_block_list_out"},
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|                     {"need_block_len", "need_block_len_out"},
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|                     {"used_list_len", "used_list_len_out"},
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|                     {"free_list", "free_list_out"},
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|                     {"free_list_len", "free_list_len_out"},
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|                     {"input_ids", "input_ids_out"},
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|                     {"first_token_ids", "first_token_ids_out"}})
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|     .SetKernelFn(PD_KERNEL(StepSystemCache));
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