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Joss Knight

MathWorks

Last seen: 1 jour ago Active since 2013

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  • 36 Month Streak
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Answered
What is different between AvailableMemory and FreeMemory?
Both are valid and supported, but FreeMemory was replaced many years ago by AvailableMemory as the documented way to determine h...

3 jours ago | 0

Answered
Loadlibrary C library (dll) changing Matrix in place?
MATLAB is being exception safe and preserving your workspace by not silently modifying variables as a side effect. The only cert...

16 jours ago | 0

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Answered
gpu memory cannot be released
This memory contains device binaries, i.e. program code, as well as workspace set aside for the CUDA libraries and not available...

19 jours ago | 0

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Answered
sparse in cuda matlab shows bad performance
It is often slower. The problem is that sparse factorizations create dense matrices...basically, it's hard to parallelize. We...

25 jours ago | 0

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Answered
Using multi-gpu in minibatchqueue
https://uk.mathworks.com/help/deeplearning/ug/train-network-in-parallel-with-custom-training-loop.html will show you how to use ...

environ un mois ago | 0

Answered
How to use multiple gpu on CGAN?
SPMD wraps the whole epoch loop. After you open it you partition the data and then start looping. See https://uk.mathworks.com/h...

environ un mois ago | 0

Answered
Memory increases on GPU while performing modification inplace
MATLAB cannot perform this operation in place because |data| is a workspace variable. MATLAB has no way of knowing there won't b...

environ 2 mois ago | 0

Answered
Frame per second computingfor GPU code generation
This is a smoothing filter to eliminate noise, to ensure it gives a good result from the first frame you could set it to |1/newt...

environ 2 mois ago | 0

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Answered
Error Message: Brace indexing is not supported for variables of this type. during TrainNetwork
You can definitely use your GPU on multiple MATLAB workers in an SPMD block. You should show your code, looks like you have a sy...

environ 2 mois ago | 0

Answered
Doesn't the GPU Coder support singleton expansion of ARRAYFUN?
Support for dimension expansion is actually restricted to the GPU version of arrayfun, and GPU Coder supports the CPU version's ...

environ 2 mois ago | 0

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Answered
From CPU code to GPU
You need to vectorize your code. The GPU is not intended for performing this kind of looping series of operations on scalar vari...

3 mois ago | 0

Answered
I have a problem about " out of memory" for running VGG16 for image classification
It doesn't look as though you're setting the MiniBatchSize on the call to activations which means it's using the default value o...

3 mois ago | 0

Answered
Error using gpuArray/subsasgn An unexpected error occurred during CUDA execution. The CUDA error was: CUDA_ERROR_LAUNCH_FAILED
What version of MATLAB are you using, what GPU and what platform? This sounds like a problem seen before with workstation 'Slee...

3 mois ago | 0

Answered
predict fucntion in deep learning toolbox does not use gpu
That is the documentation for DAGNetwork, not dlnetwork. dlnetwork does not have an ExecutionEnvironment, it chooses its environ...

4 mois ago | 0

Answered
What algorithm does matlab use when solving linear system A\b on GPU?
The same as for the CPU, MATLAB uses LU with pivoting for general square matrices and QR for general rectangular matrices. Perfo...

4 mois ago | 0

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Answered
How to use lsqr with GPU?
solution = lsqr(@afun,gpuArray(b)); Or alternatively, move the data to the GPU inside your afun operation. The problem is, usin...

4 mois ago | 0

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Compatibility Matlab & GPU coder Compute Capability 8.6 RTX 3070
Regarding the gpuBench results: no, MATLAB is definitely not only using half the cores! What you are seeing is the raw performan...

4 mois ago | 0

Answered
How much can a graphics card make a difference in neural networks?
Yes, it could make things run 10x faster maybe.

4 mois ago | 0

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Answered
Can MATLAB ResNet50 be run on Google Colab Pro?
I'm not sure how in-guidelines it is to be asking about running Octave as a substitute for MATLAB on this forum! I'm pretty sure...

4 mois ago | 1

Answered
BiCGStab is slower on R2021a using GPUs
There is a MATLAB bug report on this known issue: https://www.mathworks.com/support/bugreports/details/2438221 You should make...

5 mois ago | 0

Answered
Optimization of loops with deep learning functions
dlconv is designed to work in batch with multiple input channels, multiple filters, and multiple input observations in a single ...

5 mois ago | 0

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Answered
Is R2021a configured to automatically use Apple M1 chip for GPU and Neural Engine?
No. MATLAB only supports NVIDIA GPUs for computation.

6 mois ago | 1

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Answered
Why is pagemtimes slower on GPU than a CPU?
This might be simply because you are running double-precision math on a device designed for single precision operations. gpuBenc...

6 mois ago | 0

Answered
Problems in defining a custom Neural network layer
Your custom layer doesn't work for input sequences, and it needs to. So the particular error that is happening (which you can se...

7 mois ago | 0

Answered
Cellarray in a dlarray
dlCell = cellfun(@dlarray, myCell, 'UniformOutput', false);

7 mois ago | 0

Answered
MATLAB : find a way with GPU NVIDIA to inverse quickly a large matrix of symbolic variables
Sorry, but Symbolic Math in MATLAB does not have GPU support.

8 mois ago | 1

Answered
Which version of MATLAB will provide functional (i.e. working) GUI interactions?
You made a pre-emptive request that any response not be evasive and I wanted to make an attempt to answer your original question...

8 mois ago | 1

Answered
NVIDIA QUADRO CUDA® Toolkit Version
MATLAB R2021a supports all NVIDIA GPUs as of this date, so feel free to get any card you want! The fastest Quadro I know of righ...

8 mois ago | 0

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Answered
Parallel Computing Toolbox (parfor slower than for, GPU slower than CPU)
1) CPU/parfor: How can I measure the time transfer when doing parfor (since parfor is slower than for when calling to a part of ...

8 mois ago | 0

Answered
GPU Coder vs. ONNXRuntime, is there a difference in inference speed?
You can compile your network for TensorRT using GPU Coder if that's your intended target, no need to go through ONNX. I don't b...

8 mois ago | 0

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