fix convert bug, use double instead of float

convert.lua

@@ -33,6 +33,6 @@ else
 end
 
 checkpoint = torch.load(opt.load_model)
-checkpoint.protos.rnn:float()
-checkpoint.protos.criterion:float()
+checkpoint.protos.rnn:double()
+checkpoint.protos.criterion:double()
 torch.save(opt.save_file, checkpoint)

sample.lua

@@ -80,7 +80,7 @@ local num_layers = checkpoint.opt.num_layers
 current_state = {}
 for L = 1,checkpoint.opt.num_layers do
     -- c and h for all layers
-    local h_init = torch.zeros(1, checkpoint.opt.rnn_size):float()
+    local h_init = torch.zeros(1, checkpoint.opt.rnn_size):double()
     if opt.gpuid >= 0 then h_init = h_init:cuda() end
     table.insert(current_state, h_init:clone())
     table.insert(current_state, h_init:clone())