Joss Knight
MathWorks
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Contribute at least one answer each month for 36 consecutive months
Awarded to Joss Knight on 03 Aug 2018
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Awarded to Joss Knight on 19 May 2018
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Content Feed
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...
alrededor de 8 horas ago | 0
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...
13 días ago | 0
| accepted
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...
16 días ago | 0
| accepted
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...
23 días ago | 0
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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 ...
alrededor de 1 mes ago | 0
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...
alrededor de 1 mes ago | 0
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...
alrededor de 2 meses ago | 0
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...
alrededor de 2 meses ago | 0
| accepted
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...
alrededor de 2 meses ago | 0
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 ...
alrededor de 2 meses ago | 0
| accepted
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...
2 meses ago | 0
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...
2 meses ago | 0
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...
2 meses ago | 0
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 meses ago | 0
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 meses ago | 0
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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 meses ago | 0
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 meses ago | 0
How much can a graphics card make a difference in neural networks?
Yes, it could make things run 10x faster maybe.
4 meses ago | 0
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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 meses ago | 1
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 meses ago | 0
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 meses ago | 0
| accepted
Is R2021a configured to automatically use Apple M1 chip for GPU and Neural Engine?
No. MATLAB only supports NVIDIA GPUs for computation.
6 meses ago | 1
| accepted
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 meses ago | 0
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 meses ago | 0
Cellarray in a dlarray
dlCell = cellfun(@dlarray, myCell, 'UniformOutput', false);
7 meses ago | 0
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.
7 meses ago | 1
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 meses ago | 1
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 meses ago | 0
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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 meses ago | 0
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 meses ago | 0
