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cannot run torch code on gpu

原文 2016-09-30 09:55:34 0 2 lua/ torch

I tried to run the code in torch tutorial, but when i wanna run it on gpu using :cuda() , I keep receiving the following error

/opt/zbstudio/bin/linux/x64/lua: /home/andybug/torch/install/share/lua/5.1/nn/THNN.lua:110: bad argument #3 to 'v' (cannot convert 'struct THCudaTensor *' to 'struct THCudaLongTensor *') stack traceback: [C]: in function 'v' /home/andybug/torch/install/share/lua/5.1/nn/THNN.lua:110: in function 'ClassNLLCriterion_updateOutput' ...bug/torch/install/share/lua/5.1/nn/ClassNLLCriterion.lua:41: in function 'forward' ...ug/torch/install/share/lua/5.1/nn/StochasticGradient.lua:35: in function 'train' /home/andybug/Documents/NLP/lua torch/torch-prac/main.lua:74: in main chunk [C]: at 0x00404f08

googled this problem but no valid answers, tried reinstall nn, cunn, .etc, which didn't work.

2 answers

I've experienced the same problem while loading Coco data as Cuda tensors. As loading Pascal2012 data was fine, I thought I had an issue with data loaders or the iterator (I am using torchnet's parallel dataset iterator). On reinstalling cutorch I found something is wrong. Then reinstalled Cuda (8 in my case) as it was colliding with other versions (7.5) and finally installed torch from scratch. Now everything works like a charm.

传递给ClassNLLCriterion的目标（正向第二个参数）需要是CudaTensor。

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Related Question Torch: RNN clones run out of GPU memory Lua and Torch issues with GPu Error when running torch prediction model on GPU How to deal with GPU memory leakage issues in Torch? Set GPU usage in Torch Machine Learning Framework Torch linear model forward pass 4 times slower on GPU then CPU How to limit/round elements of a tensor to 4 decimal places on GPU in Torch? When using opencl with torch, lua uses integrated graphics not dedicated gpu Clear variable to release memory (GPU or CPU) in Lua / Torch Torch: Unable to free gpu memory after moving tensors to cpu

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cannot run torch code on gpu

Question

2 answers

solution1
0 2016-10-13 10:29:59

solution2
-1 2016-09-30 20:46:03

cannot run torch code on gpu

Question

2 answers

solution1 0 2016-10-13 10:29:59

solution2 -1 2016-09-30 20:46:03

solution1
0 2016-10-13 10:29:59

solution2
-1 2016-09-30 20:46:03