CUDA kernel failed: no error (pkg/include/cuda/emd.cuh:247)

[fsalmasri]

Could you help me with this error plz ?

CUDA kernel failed: no error (pkg/include/cuda/emd.cuh:247)

[meder411]

Possibly out of of memory on the GPU. What are the dimensions of the data you're using and how much RAM does your GPU have? I'm still trying to figure out the best way to catch CUDA errors with a meaningful message. I've gotten the kernel failure with no error when I've tried to allocate too much memory on the GPU though.

I might be catching the last error too late in the code, which is why the error code suggests no error. I'll take a look when I have some time.

[fsalmasri]

I don't think it is memory problem, I just tested your test code. it worked on TITAN Xp correctly but on TITAN X arose this problem.
is it possible to use it on tensor of this shape (X,Y,Z) ?

[meder411]

I'm not sure what shape that entails. The arguments to the loss should have dimensions (B x N x D) where B is the batch size, N is the number of points, and D is the dimensionality (e.g. [X,Y,Z] is 3 dimensions).

[fsalmasri]

exactly this is what I meant. a 3 dimensions tensor where B is the batch size, N is the number of points or variables for each batch and D could be the histogram values of 10 bins.

[fsalmasri]

Do you have an idea why it worked on Titan Xp and not on Titan X ?

[meder411]

I'm sorry, I don't know

[nsarasua]

Do you have an idea why it worked on Titan Xp and not on Titan X ?

Any news on this? I am getting the same error on my Titan X

[kongsgard]

On a GeForce GTX 1080 with total memory 8117MiB I can calculate the EMDLoss in the script test_emd_loss.py with tensors p1, p2 with a size of up to about [B,N,D] = [32,400,3]. If I increase N further, I get the same error message as commented above.

Ideally, I would like to increase N to about ~2000.

[fsalmasri]

No it works only on Titan Xp. Btw I didn't manage to converge my network using this EMD function. I can't go through the code so I make a comparison with other implementations of EMD.

[meder411]

Hm. Okay. I’ll go through this again when I have some time. I cut it out of a bigger package so something may have broken when I was cleaning it up. Apologies for the issue

[Jmq14]

Modifying BLOCK_SIZE to 1024 solved this issue in my case where the size of input tensors is [B,N,D] = [16, 1024, 3].

[123helloworld123]

No it works only on Titan Xp. Btw I didn't manage to converge my network using this EMD function. I can't go through the code so I make a comparison with other implementations of EMD.

Did you find some other implementations of EMD that can be used to compare two grayscale image?

[louis-cl]

I have the same problem. In my case the error only arises when N > 512.
Doesn't look like a memory error as it works for Bx512x3 (tried up to 100).
Changing BLOCK_SIZE to 1024 as @Jmq14 proposed allows it to N=1024 but 1025 fails...
I am using a Titan Xp.

[noahstier]

I had the same issue and I found that this implementation was able to handle more points:
https://github.com/daerduoCarey/PyTorchEMD

[yikakabu]

@fsalmasri Hi. I met the same error on Titan X with the tensor shape[32, 1024, 4]. Have you solved this issue?