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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
//
// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "ClContextDeserializer.hpp"
#include "ClContextSchema_generated.h"
#include <armnn/Exceptions.hpp>
#include <armnn/utility/NumericCast.hpp>
#include <armnn/Logging.hpp>
#include <flatbuffers/flexbuffers.h>
#include <fmt/format.h>
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <vector>
#if defined(__linux__)
#define SERIALIZER_USE_MMAP 1
#if SERIALIZER_USE_MMAP
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#endif
#endif
namespace armnn
{
void ClContextDeserializer::Deserialize(arm_compute::CLCompileContext& clCompileContext,
cl::Context& context,
cl::Device& device,
const std::string& filePath)
{
std::vector<std::uint8_t> binaryContent;
#if !SERIALIZER_USE_MMAP
std::ifstream inputFileStream(filePath, std::ios::binary);
while (inputFileStream)
{
char input;
inputFileStream.get(input);
if (inputFileStream)
{
binaryContent.push_back(static_cast<std::uint8_t>(input));
}
}
inputFileStream.close();
#else
struct stat statbuf;
int fp = open(filePath.c_str(),O_RDONLY);
if (!fp)
{
ARMNN_LOG(error) << (std::string("Cannot open file ") + filePath);
return;
}
fstat(fp,&statbuf);
const unsigned long dataSize = static_cast<unsigned long>(statbuf.st_size);
binaryContent.resize(static_cast<long unsigned int>(dataSize));
void* ptrmem = mmap(NULL, dataSize,PROT_READ,MAP_PRIVATE,fp,0);
if(ptrmem!=MAP_FAILED)
{
memcpy (binaryContent.data(), ptrmem, dataSize);
}
close(fp);
if(ptrmem == MAP_FAILED)
{
ARMNN_LOG(error) << (std::string("Cannot map file ") + filePath);
return;
}
#endif
DeserializeFromBinary(clCompileContext, context, device, binaryContent);
}
void ClContextDeserializer::DeserializeFromBinary(arm_compute::CLCompileContext& clCompileContext,
cl::Context& context,
cl::Device& device,
const std::vector<uint8_t>& binaryContent)
{
if (binaryContent.data() == nullptr)
{
throw InvalidArgumentException(fmt::format("Invalid (null) binary content {}",
CHECK_LOCATION().AsString()));
}
size_t binaryContentSize = binaryContent.size();
flatbuffers::Verifier verifier(binaryContent.data(), binaryContentSize);
if (verifier.VerifyBuffer<ClContext>() == false)
{
throw ParseException(fmt::format("Buffer doesn't conform to the expected Armnn "
"flatbuffers format. size:{0} {1}",
binaryContentSize,
CHECK_LOCATION().AsString()));
}
auto clContext = GetClContext(binaryContent.data());
for (Program const* program : *clContext->programs())
{
const char* volatile programName = program->name()->c_str();
auto programBinary = program->binary();
std::vector<uint8_t> binary(programBinary->begin(), programBinary->begin() + programBinary->size());
cl::Program::Binaries binaries{ binary };
std::vector<cl::Device> devices {device};
cl::Program theProgram(context, devices, binaries);
theProgram.build();
clCompileContext.add_built_program(programName, theProgram);
}
}
} // namespace armnn
|
