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waifu2x/tools/cudnn2cunn.lua
2018-11-14 17:21:34 +09:00

55 lines
1.9 KiB
Lua

require 'pl'
local __FILE__ = (function() return string.gsub(debug.getinfo(2, 'S').source, "^@", "") end)()
package.path = path.join(path.dirname(__FILE__), "..", "lib", "?.lua;") .. package.path
require 'os'
require 'w2nn'
local srcnn = require 'srcnn'
local function cudnn2cunn(cudnn_model)
local name = srcnn.name(cudnn_model)
local cunn_model = srcnn[name]('cunn', srcnn.channels(cudnn_model))
local param_layers = {
{cunn="nn.SpatialConvolutionMM", cudnn="cudnn.SpatialConvolution", attr={"bias", "weight"}},
{cunn="nn.SpatialDilatedConvolution", cudnn="cudnn.SpatialDilatedConvolution", attr={"bias", "weight"}},
{cunn="nn.SpatialFullConvolution", cudnn="cudnn.SpatialFullConvolution", attr={"bias", "weight"}},
{cunn="nn.Linear", cudnn="nn.Linear", attr={"bias", "weight"}}
}
for i = 1, #param_layers do
local p = param_layers[i]
local weight_from = cudnn_model:findModules(p.cudnn)
local weight_to = cunn_model:findModules(p.cunn)
print(p.cudnn, #weight_from)
assert(#weight_from == #weight_to)
for i = 1, #weight_from do
local from = weight_from[i]
local to = weight_to[i]
to.weight:copy(from.weight)
if to.bias then
to.bias:copy(from.bias)
end
end
end
cunn_model:cuda()
cunn_model:evaluate()
return cunn_model
end
local cmd = torch.CmdLine()
cmd:text()
cmd:text("waifu2x cudnn model to cunn model converter")
cmd:text("Options:")
cmd:option("-i", "", 'Specify the input cunn model')
cmd:option("-o", "", 'Specify the output cudnn model')
cmd:option("-iformat", "ascii", 'Specify the input format (ascii|binary)')
cmd:option("-oformat", "ascii", 'Specify the output format (ascii|binary)')
local opt = cmd:parse(arg)
if not path.isfile(opt.i) then
cmd:help()
os.exit(-1)
end
local cudnn_model = torch.load(opt.i, opt.iformat)
local cunn_model = cudnn2cunn(cudnn_model)
torch.save(opt.o, cunn_model, opt.oformat)