I am a newbies to torch. I have trainined my model according to 2 classes via this instruction https://github.com/soumith/imagenet-multiGPU.torch (number of classes is modifed) then, I wantted to test my model. These lines of codes are writen in instruction for testing:
dofile('donkey.lua')
img = testHook({loadSize}, 'test.jpg')
model = torch.load('model_10.t7')
if img:dim() == 3 then
img = img:view(1, img:size(1), img:size(2), img:size(3))
end
predictions = model:forward(img:cuda())
I got errors at the initial line of codes while I was trying to write.
When I try to write ;
th> dofile('donkey.lua')
I get these errors;
th> dofile("donkey.lua")
donkey.lua:18: attempt to index global 'opt' (a nil value)
stack traceback:
donkey.lua:18: in main chunk
[C]: in function 'dofile'
[string "_RESULT={dofile("donkey.lua")}"]:1: in main chunk
[C]: in function 'xpcall'
/home/leo/torch/install/share/lua/5.1/trepl/init.lua:651: in function 'repl'
...leo/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:199: in main chunk
[C]: at 0x00406670
I don't know what to do. Thanks for helping.
You need to run opts.lua before running donkey.lua using
th> dofile("opts.lua")
Check main.lua and make sure, you are not missing any other dependencies.
Related
I started using LOVE yesterday and I'm trying to code a basic quit function with LUA.
Here's my code
if function love.keyboard.getKey("q")
function love.event.quit()
end
I've tried it with and without the functions.
When I run it, it gives me this error
Error
Syntax error: main.lua:1: '(' expected near 'love'
Traceback
[C]: at 0x7ff9037828f0
[C]: in function 'require'
[C]: in function 'xpcall'
[C]: in function 'xpcall'
if function love.keyboard.getKey("q")
function love.event.quit()
end
Is invalid Lua syntax.
function is a keyword that is used to define function value. It is not part of the if statement and not used in function calls.
an if statement looks like
if condition then
-- block
end
love.keyboard.getKey("q") is not part of the love2d API.
What you want to do would probably be achieved by implementing a keypressed event handler.
Computer programs are not written by guessing some syntax and then asking for help.
Do a tutorial and read the Lua manual if you want to do anything useful with Lua.
loadstring("
\45\45\32\80\117\116\32\115\99\114\105\112\116\32\104\101\114\101\10\112\114\105\110\116\40\34\104\105\34\41\10")()
I keep getting an error stating this:
lua: /tmp/044957038/main.lua:12: attempt to call a nil value (global 'loadstring')
stack traceback:
/tmp/044957038/main.lua:12: in main chunk
[C]: in ?
Can anyone help me? (I’m using glot.io to run my script.)
Based on the comments and some testing in glot, this should work (the print() is just for reference):
print("\45\45\32\80\117\116\32\115\99\114\105\112\116\32\104\101\114\101\10\112\114\105\110\116\40\34\104\105\34\41\10")
load("\45\45\32\80\117\116\32\115\99\114\105\112\116\32\104\101\114\101\10\112\114\105\110\116\40\34\104\105\34\41\10")()
Output
-- Put script here
print("hi")
hi
This is a follow-up to my earlier question Lua: Semantic Similarity using Neural Networks.
For Semantic similarity I've execute the following code,
include('Conv.lua')
modelTrained = torch.load("download_local_location/modelSTS.trained.th", 'ascii')
modelTrained.convModel:evaluate()
modelTrained.softMaxC:evaluate()
local linputs = torch.zeros(rigth_sentence_length, emd_dimension)
linpus = XassignEmbeddingValuesX
local rinputs = torch.zeros(left_sentence_length, emd_dimension)
rinpus = XassignEmbeddingValuesX
local part2 = modelTrained.convModel:forward({linputs, rinputs})
local output = modelTrained.softMaxC:forward(part2)
local val = torch.range(0, 5, 1):dot(output:exp())
return val/5
And Execute it using the following command in terminal,
> th similarity.lua
But the error it displays is,
while creating metatable similarityMeasure.Conv: bad argument #1 (similarityMeasure is an invalid module name)
stack traceback:
[C]: in function 'newmetatable'
/torch/install/share/lua/5.2/torch/init.lua:102: in function 'class'
.../textSimilarityConvNet-master/Conv.lua:1: in main chunk
[C]: in function 'dofile'
/torch/install/share/lua/5.2/paths/init.lua:84: in function 'dofile'
/torch/install/share/lua/5.2/torch/init.lua:49: in function 'include'
similarity.lua:1: in main chunk
[C]: in function 'dofile'
.../torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
[C]: in ?
First few lines in Conv.lua is,
local Conv = torch.class('similarityMeasure.Conv')
function Conv:__init(config)
self.mem_dim = config.mem_dim or 150
self.learning_rate = config.learning_rate or 0.01
self.batch_size = config.batch_size or 1 --25
self.num_layers = config.num_layers or 1
self.reg = config.reg or 1e-4
self.structure = config.structure or 'lstm' -- {lstm, bilstm}
self.sim_nhidden = config.sim_nhidden or 150
self.task = config.task or 'sic' -- or 'vid'
-- word embedding
self.emb_vecs = config.emb_vecs
self.emb_dim = config.emb_vecs:size(2)
Please guide me to solve this.
You are missing the similarityMeasure module (and likely other modules as well). I'm guessing that the things you are missing are dependencies that are not included with the default Torch installation. The installation instructions in the Github respository's readme file say the following:
Please install Torch deep learning library. We recommend this local
installation which includes all required packages our tool needs,
simply follow the instructions here: https://github.com/torch/distro
If you installed Torch some other way, try doing it using the linked distro instead and see if that fixes the problem.
It should work. Also the repo has been recently updated.
https://github.com/castorini/MP-CNN-Torch
Once you installed the torch library properly, then you can check and see the newly added/provided testDeployment.lua file, as an example to see how to use the trained model properly.
I tried to create a image-to-image model by pix2pix (https://github.com/phillipi/pix2pix) and followed Getting Started instruction.
Then, downloaded facades dataset by bash ./datasets/download_dataset.sh facades
and run DATA_ROOT=./datasets/facades name=facades_generation which_direction=BtoA th train.lua
but I got the following error.
~/torch-cl/install/bin/luajit: ./models.lua:69: internal error in
__sub: no metatable stack traceback: [C]: in function '__sub' ./models.lua:69: in function 'defineG_unet' train.lua:110: in
function 'defineG' train.lua:146: in main chunk [C]: in function
'dofile'
...i/torch-cl/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in
main chunk [C]: at 0x010ec81ce0
Does anyone know how I can fix this?
I'm new to Lua and Torch, so have no idea how to fix this.
Thank you
this is run on Mac OSX
python2.7
I get a problem when playing Torch 7 code. I have a shared library libhashnn.so file, and I want to load the functions in Torch 7 script, so I use this expression: require 'libhashnn', but the trepl gives an error.
However, if I use package.loadlibfunction, it does work. Here are the results, but I don't know why I can't use require, how can I use require to load lib successfully?
require'libhashnn'
/home/dazhen/torch/install/share/lua/5.1/trepl/init.lua:383: bad argument #1 to '?' (table expected, got string)
stack traceback:
[C]: in function 'error'
/home/dazhen/torch/install/share/lua/5.1/trepl/init.lua:383: in function 'require'
[string "_RESULT={require'libhashnn'}"]:1: in main chunk
[C]: in function 'xpcall'
/home/dazhen/torch/install/share/lua/5.1/trepl/init.lua:650: in function 'repl'
...zhen/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:199: in main chunk
and
f=package.loadlib('libhashnn.so' ,'luaopen_libhashnn')
[0.0195s]
th> f
function: 0x41630f38
Try calling the function that package.loadlib gives you. I bet you will then get the same error that you get when you use require.
To understand why: require does the equivalent of package.loadlib and then calls that function so that the module that you are loading can initialize itself. With just package.loadlib, this initialization is not done and so the error that occurs during initialization does not show up.
I don't know what hashnn is and so I cannot tell you why it is broken, but looking at /home/dazhen/torch/install/share/lua/5.1/trepl/init.lua line 383 might be a good start to figure out what is going on.