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waifu2x/cleanup_model.lua
2015-05-16 14:48:05 +09:00

70 lines
1.7 KiB
Lua

require 'cunn'
require 'cudnn'
require './lib/LeakyReLU'
torch.setdefaulttensortype("torch.FloatTensor")
-- ref: https://github.com/torch/nn/issues/112#issuecomment-64427049
local function zeroDataSize(data)
if type(data) == 'table' then
for i = 1, #data do
data[i] = zeroDataSize(data[i])
end
elseif type(data) == 'userdata' then
data = torch.Tensor():typeAs(data)
end
return data
end
-- Resize the output, gradInput, etc temporary tensors to zero (so that the
-- on disk size is smaller)
local function cleanupModel(node)
if node.output ~= nil then
node.output = zeroDataSize(node.output)
end
if node.gradInput ~= nil then
node.gradInput = zeroDataSize(node.gradInput)
end
if node.finput ~= nil then
node.finput = zeroDataSize(node.finput)
end
if tostring(node) == "nn.LeakyReLU" then
if node.negative ~= nil then
node.negative = zeroDataSize(node.negative)
end
end
if tostring(node) == "nn.Dropout" then
if node.noise ~= nil then
node.noise = zeroDataSize(node.noise)
end
end
-- Recurse on nodes with 'modules'
if (node.modules ~= nil) then
if (type(node.modules) == 'table') then
for i = 1, #node.modules do
local child = node.modules[i]
cleanupModel(child)
end
end
end
collectgarbage()
end
local cmd = torch.CmdLine()
cmd:text()
cmd:text("cleanup model")
cmd:text("Options:")
cmd:option("-model", "./model.t7", 'path of model file')
cmd:option("-iformat", "binary", 'input format')
cmd:option("-oformat", "binary", 'output format')
local opt = cmd:parse(arg)
local model = torch.load(opt.model, opt.iformat)
if model then
cleanupModel(model)
torch.save(opt.model, model, opt.oformat)
else
error("model not found")
end