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unknown Torch class <torch.CudaTensor>#129
@bbhushan-ds

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@bbhushan-ds
bbhushan-ds
opened on Aug 3, 2016 · edited by bbhushan-ds

while running NeuralTalk2 demo using the below command. I am getting error.

Command:
th videocaptioning.lua -gpuid -1 -model ~/model_id1-501-1448236541.t7

opengl support available
/home/.../torch/install/bin/luajit: /home/.../torch/install/share/lua/5.1/torch/File.lua:343: unknown Torch class <torch.CudaTensor>
stack traceback:
[C]: in function 'error'
/home/ptcuser/torch/install/share/lua/5.1/torch/File.lua:343: in function 'readObject'
/home/ptcuser/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
/home/ptcuser/torch/install/share/lua/5.1/nn/Module.lua:158: in function 'read'
/home/ptcuser/torch/install/share/lua/5.1/torch/File.lua:351: in function 'readObject'
/home/ptcuser/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
/home/ptcuser/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
/home/ptcuser/torch/install/share/lua/5.1/torch/File.lua:409: in function 'load'
videocaptioning.lua:74: in main chunk
[C]: in function 'dofile'
...user/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
[C]: at 0x00406670

Thanks in Advance!!

Activity

chaonan99

chaonan99 commented on Aug 12, 2016

@chaonan99
chaonan99
on Aug 12, 2016

The model you use (model_id1-501-1448236541.t7) is a GPU model, but you run it with CPU mode (-gpuid -1). You can use convert_checkpoint_gpu_to_cpu.lua to replace CudaTensor with normal Tensor first.

clicman

clicman commented on Oct 3, 2016

@clicman
clicman
on Oct 3, 2016

Is it possible to convert model to CPU without GPU onboard?
On my try it fails with

user@work-lpatop:~/sandbox/neuraltalk2$ luajit convert_checkpoint_gpu_to_cpu.lua -gpuid -1 -model ../model_id1-501-1448236541.t7 
NVIDIA: no NVIDIA devices found
THCudaCheck FAIL file=/tmp/luarocks_cutorch-scm-1-6930/cutorch/lib/THC/THCGeneral.c line=91 error=30 : unknown error
luajit: cuda runtime error (30) : unknown error at /tmp/luarocks_cutorch-scm-1-6930/cutorch/lib/THC/THCGeneral.c:91
stack traceback:
    [C]: at 0x7fbaf22e3d10
    [C]: in function 'require'
    .../sidochenko/torch/install/share/lua/5.1/cutorch/init.lua:2: in main chunk
    [C]: in function 'require'
    convert_checkpoint_gpu_to_cpu.lua:14: in main chunk
    [C]: at 0x00405d50
JiteshPshah

JiteshPshah commented on Jul 3, 2017

@JiteshPshah
JiteshPshah
on Jul 3, 2017

@chaonan99 How to I replace cuda tensor to normal tensor ?

himanshudce

himanshudce commented on Jul 8, 2018

@himanshudce
himanshudce
on Jul 8, 2018

just add -gpuid 1 at the end

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          unknown Torch class <torch.CudaTensor> · Issue #129 · karpathy/neuraltalk2