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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
require 'torch'
local ffi = require 'ffi'
local serialize = {}
local typenames = {}
local function serializePointer(obj, f)
-- on 32-bit systems double can represent all possible
-- pointer values, but signed long can't
if ffi.sizeof('long') == 4 then
f:writeDouble(torch.pointer(obj))
-- on 64-bit systems, long can represent a larger
-- range of integers than double, so it's safer to use this
else
f:writeLong(torch.pointer(obj))
end
end
local function deserializePointer(f)
if ffi.sizeof('long') == 4 then
return f:readDouble()
else
return f:readLong()
end
end
-- tds support
local _, tds = pcall(require, 'tds') -- for the free/retain functions
if tds then
-- hash
local mt = {}
function mt.__factory(f)
local self = deserializePointer(f)
self = ffi.cast('tds_hash&', self)
ffi.gc(self, tds.C.tds_hash_free)
return self
end
function mt.__write(self, f)
serializePointer(self, f)
tds.C.tds_hash_retain(self)
end
function mt.__read(self, f)
end
typenames['tds.Hash'] = mt
-- vec
local mt = {}
function mt.__factory(f)
local self = deserializePointer(f)
self = ffi.cast('tds_vec&', self)
ffi.gc(self, tds.C.tds_vec_free)
return self
end
function mt.__write(self, f)
serializePointer(self, f)
tds.C.tds_vec_retain(self)
end
function mt.__read(self, f)
end
typenames['tds.Vec'] = mt
-- atomic
local mt = {}
function mt.__factory(f)
local self = deserializePointer(f)
self = ffi.cast('tds_atomic_counter&', self)
ffi.gc(self, tds.C.tds_atomic_free)
return self
end
function mt.__write(self, f)
serializePointer(self, f)
tds.C.tds_atomic_retain(self)
end
function mt.__read(self, f)
end
typenames['tds.AtomicCounter'] = mt
end
-- tensor support
for _, typename in ipairs{
'torch.ByteTensor',
'torch.CharTensor',
'torch.ShortTensor',
'torch.IntTensor',
'torch.LongTensor',
'torch.FloatTensor',
'torch.DoubleTensor',
'torch.HalfTensor',
'torch.CudaTensor',
'torch.CudaByteTensor',
'torch.CudaCharTensor',
'torch.CudaShortTensor',
'torch.CudaIntTensor',
'torch.CudaLongTensor',
'torch.CudaDoubleTensor',
'torch.CudaHalfTensor',
'torch.ByteStorage',
'torch.CharStorage',
'torch.ShortStorage',
'torch.IntStorage',
'torch.LongStorage',
'torch.FloatStorage',
'torch.DoubleStorage',
'torch.HalfStorage',
'torch.CudaStorage',
'torch.CudaByteStorage',
'torch.CudaCharStorage',
'torch.CudaShortStorage',
'torch.CudaIntStorage',
'torch.CudaLongStorage',
'torch.CudaDoubleStorage',
'torch.CudaHalfStorage',
'torch.Allocator'} do
local mt = {}
function mt.__factory(f)
local self = deserializePointer(f)
self = torch.pushudata(self, typename)
return self
end
function mt.write(self, f)
serializePointer(self, f)
if typename ~= 'torch.Allocator' then
self:retain()
end
end
function mt.read(self, f)
end
typenames[typename] = mt
end
local function swapwrite()
for typename, mt in pairs(typenames) do
local mts = torch.getmetatable(typename)
if mts then
mts.__factory, mt.__factory = mt.__factory, mts.__factory
mts.__write, mt.__write = mt.__write, mts.__write
mts.write, mt.write = mt.write, mts.write
end
end
end
local function swapread()
for typename, mt in pairs(typenames) do
local mts = torch.getmetatable(typename)
if mts then
mts.__factory, mt.__factory = mt.__factory, mts.__factory
mts.__read, mt.__read = mt.__read, mts.__read
mts.read, mt.read = mt.read, mts.read
end
end
end
function serialize.save(func)
local status, msg = pcall(swapwrite)
if not status then
print(string.format('FATAL THREAD PANIC: (write) %s', msg))
os.exit(-1)
end
local status, storage = pcall(
function()
local f = torch.MemoryFile()
f:binary()
f:writeObject(func)
local storage = f:storage()
f:close()
return storage
end
)
if not status then
print(string.format('FATAL THREAD PANIC: (write) %s', storage))
os.exit(-1)
end
local status, msg = pcall(swapwrite)
if not status then
print(string.format('FATAL THREAD PANIC: (write) %s', msg))
os.exit(-1)
end
return storage
end
function serialize.load(storage)
local status, msg = pcall(swapread)
if not status then
print(string.format('FATAL THREAD PANIC: (read) %s', msg))
os.exit(-1)
end
local status, func = pcall(
function()
local f = torch.MemoryFile(storage)
f:binary()
local func = f:readObject()
f:close()
return func
end
)
if not status then
print(string.format('FATAL THREAD PANIC: (read) %s', func))
os.exit(-1)
end
local status, msg = pcall(swapread)
if not status then
print(string.format('FATAL THREAD PANIC: (read) %s', msg))
os.exit(-1)
end
return func
end
return serialize
|
