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Add visitor to draw nets in the DOT language (#2528)

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* Add visitor to draw nets in the DOT language

* Add documentation
pull/2535/head
Adrià Arrufat 3 years ago committed by GitHub
parent bf427f56c7
commit 1f9f32ca97
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3 changed files with 565 additions and 0 deletions
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dlib/dnn.h
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#include "cuda/tensor_tools.h"
#include "dnn/utilities.h"
#include "dnn/validation.h"
#include "dnn/visitors.h"
#endif // DLIB_DNn_

518
dlib/dnn/visitors.h
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// Copyright (C) 2022 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_DNn_VISITORS_H_
#define DLIB_DNn_VISITORS_H_
#include "input.h"
#include "layers.h"
#include "loss.h"
namespace dlib
{
namespace impl
{
class visitor_net_to_dot
{
public:
visitor_net_to_dot(std::ostream& out) : out(out) {}
// ----------------------------------------------------------------------------------------
template <typename input_layer_type>
void operator()(size_t i, input_layer_type& l)
{
start_node(i, "input");
end_node();
from = i;
}
// ----------------------------------------------------------------------------------------
template <typename T, typename U>
void operator()(size_t i, const add_loss_layer<T, U>&)
{
start_node(i, "loss");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <template <typename> class... TAGS, typename U>
void operator()(size_t i, const add_loss_layer<loss_yolo_<TAGS...>, U>&)
{
start_node(i, "loss_yolo");
end_node();
std::ostringstream sout;
concat_helper_impl<TAGS...>::list_tags(sout);
const auto tags = dlib::split(sout.str(), ",");
for (const auto& tag : tags)
out << tag_to_layer.at(std::stoul(tag)) << " -> " << i << '\n';
}
// ----------------------------------------------------------------------------------------
template <unsigned long ID, typename U, typename E>
void operator()(size_t i, const add_tag_layer<ID, U, E>&)
{
// check for consecutive tag layers
tagged_layers.push_back(i);
std::sort(tagged_layers.begin(), tagged_layers.end());
std::vector<unsigned long> diffs;
std::adjacent_difference(tagged_layers.begin(), tagged_layers.end(), std::back_inserter(diffs));
from = i + 1;
if (diffs.size() > 1 && diffs[1] == 1)
{
for (size_t id = 1; id < diffs.size(); ++id)
{
if (diffs[id] == 1)
++from;
else
break;
}
}
tag_to_layer[ID] = from;
// In case we wanted to draw the tagged layers, instead:
// tag_to_layer[ID] = i;
// start_node(i, "tag", "Mrecord");
// out << " | {id|{" << ID << "}}";
// end_node();
// update(i);
}
// ----------------------------------------------------------------------------------------
template <template <typename> class TAG, typename U>
void operator()(size_t i, const add_skip_layer<TAG, U>&)
{
const auto t = tag_id<TAG>::id;
from = tag_to_layer.at(t);
}
// ----------------------------------------------------------------------------------------
template <long nf, long nr, long nc, int sy, int sx, int py, int px, typename U, typename E>
void operator()(size_t i, const add_layer<con_<nf, nr, nc, sy, sx, py, px>, U, E>& l)
{
start_node(i, "con");
out << " | {filters|{" << l.layer_details().num_filters() << "}}";
out << " | {size|{" << nr << "," << nc << "}}";
if (sy != 1 || sx != 1)
out << " | {stride|{" << sy<< "," << sx << "}}";
if (py != 0 || px != 0)
out << " | {pad|{" << py<< "," << px << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <long nf, long nr, long nc, int sy, int sx, int py, int px, typename U, typename E>
void operator()(size_t i, const add_layer<cont_<nf, nr, nc, sy, sx, py, px>, U, E>& l)
{
start_node(i, "cont");
out << " | {filters|{" << l.layer_details().num_filters() << "}}";
out << " | {size|{" << nr << "," << nc << "}}";
if (sy != 1 || sx != 1)
out << " | {stride|{" << sy<< "," << sx << "}}";
if (py != 0 || px != 0)
out << " | {pad|{" << py<< "," << px << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <int sy, int sx, typename U, typename E>
void operator()(size_t i, const add_layer<upsample_<sy, sx>, U, E>&)
{
start_node(i, "upsample");
if (sy != 1 || sx != 1)
out << " | {stride|{" << sy<< "," << sx << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <int NR, int NC, typename U, typename E>
void operator()(size_t i, const add_layer<resize_to_<NR, NC>, U, E>&)
{
start_node(i, "resize_to");
out << " | {size|{" << NR << "," << NC << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <long nr, long nc, int sy, int sx, int py, int px, typename U, typename E>
void operator()(size_t i, const add_layer<max_pool_<nr, nc, sy, sx, py, px>, U, E>&)
{
start_node(i, "max_pool");
out << " | {size|{" << nr << "," << nc << "}}";
if (sy != 1 || sx != 1)
out << " | {stride|{" << sy<< "," << sx << "}}";
if (py != 0 || px != 0)
out << " | {pad|{" << py<< "," << px << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <long nr, long nc, int sy, int sx, int py, int px, typename U, typename E>
void operator()(size_t i, const add_layer<avg_pool_<nr, nc, sy, sx, py, px>, U, E>&)
{
start_node(i, "avg_pool");
out << " | {size|{" << nr << "," << nc << "}}";
if (sy != 1 || sx != 1)
out << " | {stride|{" << sy<< "," << sx << "}}";
if (py != 0 || px != 0)
out << " | {pad|{" << py<< "," << px << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<layer_norm_, U, E>&)
{
start_node(i, "layer_norm");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <layer_mode MODE, typename U, typename E>
void operator()(size_t i, const add_layer<bn_<MODE>, U, E>&)
{
start_node(i, "batch_norm");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <unsigned long no, fc_bias_mode bm, typename U, typename E>
void operator()(size_t i, const add_layer<fc_<no, bm>, U, E>& l)
{
start_node(i, "fc");
out << " | { outputs |{" << l.layer_details().get_num_outputs() << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<dropout_, U, E>&)
{
start_node(i, "dropout");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<multiply_, U, E>&)
{
start_node(i, "multiply");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<affine_, U, E>&)
{
start_node(i, "affine");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <template <typename> class TAG, typename U, typename E>
void operator()(size_t i, const add_layer<add_prev_<TAG>, U, E>&)
{
start_node(i, "add");
end_node();
const auto t = tag_id<TAG>::id;
out << tag_to_layer.at(t) << " -> " << i << '\n';
update(i);
}
// ----------------------------------------------------------------------------------------
template <template <typename> class TAG, typename U, typename E>
void operator()(size_t i, const add_layer<mult_prev_<TAG>, U, E>&)
{
start_node(i, "mult");
end_node();
const auto t = tag_id<TAG>::id;
out << tag_to_layer.at(t) << " -> " << i << '\n';
update(i);
}
// ----------------------------------------------------------------------------------------
template <template <typename> class TAG, typename U, typename E>
void operator()(size_t i, const add_layer<resize_prev_to_tagged_<TAG>, U, E>&)
{
start_node(i, "resize_as");
end_node();
const auto t = tag_id<TAG>::id;
out << i << " -> " << tag_to_layer.at(t) << "[style=dashed]\n";
update(i);
from = i;
}
// ----------------------------------------------------------------------------------------
template <template <typename> class TAG, typename U, typename E>
void operator()(size_t i, const add_layer<scale_<TAG>, U, E>&)
{
start_node(i, "scale");
end_node();
const auto t = tag_id<TAG>::id;
out << tag_to_layer.at(t) << " -> " << i << '\n';
update(i);
}
// ----------------------------------------------------------------------------------------
template <template <typename> class TAG, typename U, typename E>
void operator()(size_t i, const add_layer<scale_prev_<TAG>, U, E>&)
{
start_node(i, "scale");
end_node();
const auto t = tag_id<TAG>::id;
out << tag_to_layer.at(t) << " -> " << i << '\n';
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<relu_, U, E>&)
{
start_node(i, "relu");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<prelu_, U, E>&)
{
start_node(i, "prelu");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<leaky_relu_, U, E>&)
{
start_node(i, "leaky_relu");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<sig_, U, E>&)
{
start_node(i, "sigmoid");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<mish_, U, E>&)
{
start_node(i, "mish");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<htan_, U, E>&)
{
start_node(i, "htan");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<clipped_relu_, U, E>&)
{
start_node(i, "clipped_relu");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<elu_, U, E>&)
{
start_node(i, "elu");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<gelu_, U, E>&)
{
start_node(i, "gelu");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<softmax_, U, E>&)
{
start_node(i, "softmax");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<softmax_all_, U, E>&)
{
start_node(i, "softmax_all");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <template <typename> class... TAGS, typename U, typename E>
void operator()(size_t i, const add_layer<concat_<TAGS...>, U, E>& l)
{
start_node(i, "concat");
end_node();
std::ostringstream sout;
concat_helper_impl<TAGS...>::list_tags(sout);
const auto tags = dlib::split(sout.str(), ",");
for (const auto& tag : tags)
out << tag_to_layer.at(std::stoul(tag)) << " -> " << i << '\n';
from = i;
}
// ----------------------------------------------------------------------------------------
template <typename U, typename E>
void operator()(size_t i, const add_layer<l2normalize_, U, E>&)
{
start_node(i, "l2normalize");
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <long offset, long k, int nr, int nc, typename U, typename E>
void operator()(size_t i, const add_layer<extract_<offset, k, nr, nc>, U, E>&)
{
start_node(i, "extract");
out << " | {offset|{" << offset << "}}";
out << " | {k|{" << k << "}}";
out << " | {nr|{" << nr << "}}";
out << " | {nc|{" << nc << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <long long sy, long long sx, typename U, typename E>
void operator()(size_t i, const add_layer<reorg_<sy, sx>, U, E>&)
{
start_node(i, "reorg");
if (sy != 1 || sx != 1)
out << " | {stride|{" << sy<< "," << sx << "}}";
end_node();
update(i);
}
// ----------------------------------------------------------------------------------------
template <typename T, typename U, typename E>
void operator()(size_t i, const add_layer<T, U, E>& l)
{
start_node(i, "unhandled layer");
update(i);
}
// ----------------------------------------------------------------------------------------
private:
size_t from;
std::ostream& out;
std::unordered_map<size_t, size_t> tag_to_layer;
std::vector<size_t> tagged_layers;
void update(const size_t i)
{
out << from << " -> " << i << '\n';
from = i;
}
void start_node(const size_t i, const std::string& name, const std::string& shape = "record")
{
out << i << " [shape=" << shape << ", label=\"{layer|{" << i << "}} | " << name;
}
void end_node()
{
out << "\"]\n";
}
};
}
template <typename net_type>
void net_to_dot (
const net_type& net,
std::ostream& out
)
{
out << "digraph G {\n";
out << "rankdir = BT\n";
visit_layers_backwards(net, impl::visitor_net_to_dot(out));
out << "}";
}
template <typename net_type>
void net_to_dot (
const net_type& net,
const std::string& filename
)
{
std::ofstream fout(filename);
net_to_dot(net, fout);
}
}
#endif // DLIB_DNn_VISITORS_H_

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dlib/dnn/visitors_abstract.h
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// Copyright (C) 2022 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#undef DLIB_DNn_VISITORS_ABSTRACT_H_
#ifdef DLIB_DNn_VISITORS_ABSTRACT_H_
#include "input.h"
#include "layers.h"
#include "loss.h"
namespace dlib
{
// ----------------------------------------------------------------------------------------
template <typename net_type>
void net_to_dot (
const net_type& net,
std::ostream& out
);
/*!
requires
- net_type is an object of type add_layer, add_loss_layer, add_skip_layer, or
add_tag_layer.
ensures
- Prints the given neural network object as an DOT document to the given output
stream.
- The contents of #out can be used by the dot program from Graphviz to export
the network diagram to any supported format.
!*/
template <typename net_type>
void net_to_dot (
const net_type& net,
const std::string& filename
);
/*!
requires
- net_type is an object of type add_layer, add_loss_layer, add_skip_layer, or
add_tag_layer.
ensures
- This function is just like the above net_to_dot(), except it writes to a file
rather than an ostream.
!*/
}
#endif // DLIB_DNn_VISITORS_ABSTRACT_H_
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