reid from https://github.com/michuanhaohao/reid-strong-baseline
zhangmeng
2020-01-17 f7c4a3cfd07adede3308f8d9d3d7315427d90a7c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
#ifndef CAFFE2_OPERATORS_CHANNEL_SHUFFLE_OP_H_
#define CAFFE2_OPERATORS_CHANNEL_SHUFFLE_OP_H_
 
#include "caffe2/core/context.h"
#include "caffe2/core/logging.h"
#include "caffe2/core/operator.h"
 
namespace caffe2 {
 
template <typename T, class Context>
class ChannelShuffleOp final : public Operator<Context> {
 public:
  USE_OPERATOR_CONTEXT_FUNCTIONS;
 
  template <class... Args>
  explicit ChannelShuffleOp(Args&&... args)
      : Operator<Context>(std::forward<Args>(args)...),
        order_(StringToStorageOrder(
            this->template GetSingleArgument<std::string>("order", "NCHW"))),
        OP_SINGLE_ARG(int, "group", group_, 1) {
    CAFFE_ENFORCE_NE(order_, StorageOrder::UNKNOWN);
  }
 
  bool RunOnDevice() override {
    return order_ == StorageOrder::NCHW ? RunOnDeviceWithOrderNCHW()
                                        : RunOnDeviceWithOrderNHWC();
  }
 
  bool RunOnDeviceWithOrderNCHW();
 
  bool RunOnDeviceWithOrderNHWC();
 
 private:
  const StorageOrder order_;
  const int group_;
};
 
template <typename T, class Context>
class ChannelShuffleGradientOp final : public Operator<Context> {
 public:
  USE_OPERATOR_CONTEXT_FUNCTIONS;
 
  template <class... Args>
  explicit ChannelShuffleGradientOp(Args&&... args)
      : Operator<Context>(std::forward<Args>(args)...),
        order_(StringToStorageOrder(
            this->template GetSingleArgument<std::string>("order", "NCHW"))),
        OP_SINGLE_ARG(int, "group", group_, 1) {
    CAFFE_ENFORCE_NE(order_, StorageOrder::UNKNOWN);
  }
 
  bool RunOnDevice() override {
    return order_ == StorageOrder::NCHW ? RunOnDeviceWithOrderNCHW()
                                        : RunOnDeviceWithOrderNHWC();
  }
 
  bool RunOnDeviceWithOrderNCHW();
 
  bool RunOnDeviceWithOrderNHWC();
 
 private:
  const StorageOrder order_;
  const int group_;
};
 
} // namespace caffe2
 
#endif // CAFFE2_OPERATORS_CHANNEL_SHUFFLE_OP_H_