Files
FastDeploy/custom_ops/gpu_ops/remote_cache_kv_ipc.h
2025-07-19 23:19:27 +08:00

106 lines
3.9 KiB
C

// Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <unistd.h>
#include "driver_types.h"
#include "paddle/extension.h"
#include "paddle/phi/core/allocator.h"
#include "paddle/phi/core/dense_tensor.h"
#include "msg_utils.h"
struct RemoteCacheKvIpc {
struct save_cache_kv_complete_signal_layerwise_meta_data{
int32_t layer_id=-1;
void * shm_ptr=nullptr;
int shm_fd=-1;
save_cache_kv_complete_signal_layerwise_meta_data(){}
save_cache_kv_complete_signal_layerwise_meta_data(int32_t layer_id_,
void* shm_ptr_,
int shm_fd_)
:layer_id(layer_id_), shm_ptr(shm_ptr_), shm_fd(shm_fd_){
}
};
struct save_cache_kv_complete_signal_layerwise_meta_data_per_query{
int layer_id_;
int num_layers_;
bool inited = false;
struct msgdatakv msg_sed;
int msgid;
save_cache_kv_complete_signal_layerwise_meta_data_per_query(){}
void init(const int *seq_lens_encoder,
const int *seq_lens_decoder,
const int rank,
const int num_layers,
const int real_bsz) {
layer_id_ = 0;
num_layers_ = num_layers;
msg_sed.mtype = 1;
int encoder_count = 0;
for (int i = 0; i < real_bsz; i++) {
if (seq_lens_encoder[i] > 0) {
msg_sed.mtext[3 * encoder_count + 2] = i;
msg_sed.mtext[3 * encoder_count + 3] = seq_lens_decoder[i];
msg_sed.mtext[3 * encoder_count + 4] = seq_lens_encoder[i];
encoder_count++;
}
}
msg_sed.mtext[0] = encoder_count;
if (!inited) {
// just init once
const int msg_id = 1024 + rank;
key_t key = ftok("/opt/", msg_id);
msgid = msgget(key, IPC_CREAT | 0666);
inited = true;
}
}
void CUDART_CB send_signal() {
msg_sed.mtext[1] = layer_id_;
if ((msgsnd(msgid, &msg_sed, (MAX_BSZ * 3 + 2) * 4, 0)) == -1) {
printf("kv signal full msg buffer\n");
}
layer_id_ = (layer_id_ + 1);
assert(layer_id_ <= num_layers_);
}
};
static RemoteCacheKvIpc::save_cache_kv_complete_signal_layerwise_meta_data kv_complete_signal_meta_data;
static RemoteCacheKvIpc::save_cache_kv_complete_signal_layerwise_meta_data_per_query kv_complete_signal_meta_data_per_query;
static void* kv_complete_signal_identity_ptr;
static bool kv_complete_signal_shmem_opened;
static RemoteCacheKvIpc::save_cache_kv_complete_signal_layerwise_meta_data open_shm_and_get_complete_signal_meta_data(
const int rank_id,
const int device_id,
const bool keep_pd_step_flag);
static void CUDART_CB save_cache_kv_complete_signal_layerwise(void* meta_data);
static void CUDART_CB save_cache_kv_complete_signal_layerwise_per_query(void* meta_data);
};