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Joss Knight

MathWorks

Last seen: ein Tag vor Aktiv seit 2013

Although I cannot be contacted directly, if you would like to ask me a question all you have to do is mention "GPU" somewhere in your MATLAB Answers question.

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  • 36 Month Streak
  • Knowledgeable Level 5
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Beantwortet
Conflicting behaviour of arrayfun() with gpu: example that works and example of error
The function normcdf isn't supported by GPU arrayfun because it accepts varargin. For a list of supported functions see the docu...

16 Tage vor | 0

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Beantwortet
How to initialize a string variable, and pass it to the matlab function using GPU coder
MATLAB and Simulink code generation do not currently support string. Edit: Sorry, my bad, it does support scalar strings, but n...

16 Tage vor | 0

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Beantwortet
need to plot the accuracy vs epoch graph
Add Plots="training-progress" to your training options. FWIW, you shouldn't use ReadFcn for resizing images, it dramatically sl...

16 Tage vor | 1

Beantwortet
Update BatchNorm Layer State in Siamese netwrok with custom loop for triplet and contrastive loss
Interesting question! The purpose of batch norm state is to collect statistics about typical inputs. In a normal Siamese workflo...

24 Tage vor | 0

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Beantwortet
gpu arrayfun don't support linspace or NaN array
You cannot create an array inside a call to GPU arrayfun, only scalars.

25 Tage vor | 0

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GPU Support for RTX 4090
Forgive me for needing to correct Walter, but the last three versions of MATLAB _will_ natively support the 4000 series because,...

etwa ein Monat vor | 1

Beantwortet
mexcuda gives unsupported GNU version error
R2022a uses CUDA 11.2, not 11.7. I suspect that the actual compiler that ends up being used is the version of nvcc shipped with ...

3 Monate vor | 0

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Beantwortet
GPU speed up for pcg() is disappointing
I'm guessing LL' is extremely dense, which will explain why the solver stalls. On the GPU the preconditioning is (currently) per...

3 Monate vor | 0

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Beantwortet
How to implement Siamese network with the two subnetworks not share weights
You can try gathering the weights back from each network after you've used it, as in net = dlupdate(@gather,net). This should sa...

3 Monate vor | 0

Beantwortet
Speed up inference or/and training of a 3D deep neural network (U-net) for a regression task
Have you tried using dlaccelerate? As well as ensuring any Custom Layers are using the Acceleratable mixin?

3 Monate vor | 1

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Beantwortet
Matrix multiplication optimization using GPU parallel computation
The Windows Task Manager lets you track GPU utilization and memory graphically, and the utility nvidia-smi lets you do it in a t...

3 Monate vor | 1

Beantwortet
How to increase MiniBatchSize
It depends on what you're doing. Some ideas: * Get a new GPU with more memory * Use a smaller model * If your model accepts...

4 Monate vor | 0

Beantwortet
Matlab trainNetwork CNN training pauses iterating intermittently at random then continues
Is the pause associated with a validation measurement being added to the training plot? With 7 times as much validation data it ...

4 Monate vor | 0

Beantwortet
problems with @arrayfun on GPU
This is a bug. I have reported it. Thanks for finding it! In the meantime, you can work around the issue by using a local funct...

4 Monate vor | 0

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Beantwortet
A problem when using "multi-gpu" as "ExecutionEnvironment" for training a CNN
Most likely this is this issue, which is fixed in the latest update to R2022a. You can also try downgrading your GPU drivers.

4 Monate vor | 0

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Beantwortet
Perform mldivide between 3x3 matrix M and every RGB pixel in a image in GPU
I feel like I'm missing something - this is just a single backslash with multiple right-hand sides, or to avoid permutation a si...

5 Monate vor | 1

Beantwortet
Library not loaded: @rpath/libcudart.10.2.dylib
This problem should now be fixed at Apple, please reboot and report here if you are still experiencing issues.

5 Monate vor | 0

Beantwortet
Warning: GPU is low on memory
A 3-D U-net is a very large model. Try reducing |patchSize|, |patchPerImage|, |miniBatchSize| and |inputSize|.

5 Monate vor | 0

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Beantwortet
How to run lane detection optimized with GPU coder project on matlab
https://www.mathworks.com/help/gpucoder/ug/lane-detection-optimized-with-gpu-coder.html

6 Monate vor | 0

Beantwortet
Dedicated GPU Memory Usage - Permanently increases every time code is run
This error means you ran out of GPU memory. I can't reproduce any sort of memory leak in R2022a. It's possible that you are perm...

6 Monate vor | 1

Beantwortet
minibatchqueue function cannot generate the expected MiniBatchSize
You've asked your arrayDatastore to iterate over the rows because that's the default. So as far as arrayDatastore is concerned, ...

7 Monate vor | 1

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Beantwortet
RTX 3090 vs A100 in deep learning.
According to the spec as documented on Wikipedia, the RTX 3090 has about 2x the maximum speed at single precision than the A100,...

7 Monate vor | 0

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Beantwortet
GPUCoder does not generate parallelized code
This looks about right to me, because your kernel is too simple and you're transferring data from and to the CPU on every call. ...

7 Monate vor | 1

Beantwortet
Can I run custom Matlab function or gpuArray on another GPU?
You can use parallel syntax to process other arrays on other GPUs at the same time, or to process some data on the CPU at the sa...

7 Monate vor | 0

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Beantwortet
How can run and upload my Deep Learning model in cloud?
<https://uk.mathworks.com/help/deeplearning/ug/deep-learning-in-the-cloud.html Start here>

8 Monate vor | 0

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Beantwortet
Error in minibatchqueue (line 290) numVariables = numel(getPreviewFromDatastore(originalDatastore));
Make sure the accompanying file augmentDataForLD2HDCT.m that comes with this example is on the path when you run your code.

8 Monate vor | 0

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Beantwortet
Reorganizing current data structure in order to take advantage of GPU
Evidently with your nested structure you are not required to have uniform data - every element at each level can have a differen...

8 Monate vor | 1

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Beantwortet
Saving images quickly for huge datasets
It's hard to say what will speed things up, since we don't know which part of the process is slow. Is saving slow? Is computing ...

8 Monate vor | 1

Beantwortet
Help me for this CUDA Error
I see two calls to predict which don't specify ExecutionEnvironment and therefore will be trying to use your college computer's ...

8 Monate vor | 0

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