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Warnings inside of compiled parpool are messy
Thanks for reporting this. We shall endeavour to improve this behaviour in a future release of Parallel Computing Toolbox. Unfor...
28 giorni fa | 2
| accettato
How can I utilize tall arrays for my data structure without it being in a cell array?
You can use UniformRead=true in your fileDatastore to avoid the need for cell2underlying. Like this: dirname = fullfile(tempdir...
3 mesi fa | 1
| accettato
Parfor HPC Cluster - How to Assign Objects to Same Core Consistently?
I think this might be a case for spmd. With spmd, you can ensure you construct the objects on particular workers, and only ever ...
3 mesi fa | 0
Zombie MATLAB Processes Remain After parpool/parfor and delete(gcp('nocreate'))
This is not expected. Please contact MathWorks support who can help get to the bottom of this problem. When you contact them, it...
4 mesi fa | 0
| accettato
Using parallel computing to communicate with device
Firstly, I wonder if you should be using the function-handle constructor to make the parallel.pool.Constant, like this: Scale_C...
4 mesi fa | 0
How to perform the inverse operation of "spmdCat" in parallel computing
A "scatter" method isn't exposed directly, but you can achieve the same thing using the codistributed constructor, like this: s...
7 mesi fa | 0
parallel computing for an image stack
I'm not sure exactly what you're after here, but note that the gpuArray implementation of fft2 automatically applies to "pages" ...
8 mesi fa | 0
| accettato
How do I import cluster profiles without access to a GUI?
You can use parallel.importProfile to do exactly this from within MATLAB on the server. You can't currently run cluster profile ...
8 mesi fa | 0
| accettato
MATLAB 2024 default number of threads
You can change the maximum number of workers to use with a thread pool by modifying the NumWorkers property in the "Cluster Prof...
8 mesi fa | 0
How can I create a singleton object that is processed in parallel threads and processes?
I think your solution is heading in the right direction. Using a DataQueue is exactly what I'd suggest for getting the log messa...
8 mesi fa | 1
| accettato
Error message in the console when using batch
As mentioned by @Walter Roberson you can use the Diary property of the job to view this information. Another (more intrusive) op...
9 mesi fa | 0
saving a job.parallel object
It is not supported to save job / task objects themselves - the expected workflow is that you use parcluster to get back your jo...
9 mesi fa | 0
| accettato
Setting global variables independently on each worker for parallel computation
You can modify the global workspace of a parallel pool worker, but you cannot do it directly within the body of an spmd block or...
9 mesi fa | 0
| accettato
Error using Parfor "Unable to classify the variable 'Sort'"
I just came here to mention that we tried to improve the error reporting for this case. Here's what happens now, hopefully it ma...
9 mesi fa | 1
parfor unable to classify, why?
By the way, just wanted to mention that we attempted to improve the message for this particular error case. Hope it makes sense....
9 mesi fa | 1
Distributed and spmd not running faster
You're not missing anything. If you're only using the cores on your local machine, distributed is unlikely to be much use to you...
9 mesi fa | 1
| accettato
Li-ion battery calibration - Not able to disable parallel computing
The doc page you reference https://uk.mathworks.com/help/autoblks/ref/battery.pulsesequence.estimateparameters.html states that ...
10 mesi fa | 0
Displaying a struct containing gpuArray fields takes an extremely long time in R2024b
Thanks for reporting this, I can reproduce the problem here (though not so severely). For now I'm afraid the only workaround is ...
10 mesi fa | 0
| accettato
Is there a faster method than parfor?
There's quite a bit going on here, and without seeing the details of modifyArray, it's hard to know exactly what to suggest to m...
11 mesi fa | 0
How does a local parpool manage path per worker?
Workers in a local parallel pool inherit their MATLAB path (and current working directory) from the MATLAB client. However, if y...
11 mesi fa | 0
| accettato
Did the default NumWorkers change for a local pool in R2024a?
Check the answer here: https://uk.mathworks.com/matlabcentral/answers/2062522-how-does-parallel-computing-toolbox-handle-perform...
oltre un anno fa | 0
| accettato
parpool memory allocation per worker
Further to the other suggestions here, using parpool("Threads") will use less memory than parpool("Processes"), but not everythi...
oltre un anno fa | 0
How to resolve warning message about broadcast variable while using 'parfor'?
I think you should ignore this message in this case. It looks like you really need all the values of males for each iteration of...
oltre un anno fa | 0
| accettato
parfor problems (structure, reduction assignment, etc)
The problem here is that you're trying to extend the arrays like Ball by assigning off the end of the current size of the array....
oltre un anno fa | 0
| accettato
Cancel parfeval causes workers to throw errors
My guess is that whatever myFunc is doing is not safe against being interrupted with CTRL-C. When you cancel a parallel.Future, ...
oltre un anno fa | 0
How to run multiple functions simultaneously and communicate with each other?
Your spmd block as written instructs each worker to run first aData() and then bData(). This is the general pattern of spmd - al...
oltre un anno fa | 1
Error when running function with batch()
This is nothing to do with batch, and everything to do with workspace transparency. Basically when a parfor loop exists inside a...
oltre un anno fa | 0
| accettato
FFT is suddenly slow down for repeated operations.
This is due to the asynchronous nature of gpuArray operations. Where possible, operations on the GPU are queued up and run in th...
oltre un anno fa | 2
| accettato
generalizedInverseKinematics in a nested parforloop
You haven't given us a lot to go on there, but the form of assignment you mention is only valid if qWaypoints is a parfor "tempo...
oltre un anno fa | 0
| accettato
How can I know which worker performs each iteration of the parfor loop?
You can use getCurrentTask (if you're using a process pool rather than a thread pool). This has a field ID which tells you which...
oltre un anno fa | 0
