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Raymond Norris

Last seen: Today Active since 2003

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Answered
"parfeval" and "backgroundPool" to create background progress bar
There are a couple of issues parfeval requires other input arguments and you need to pass in the function handle to DBWaitGUI2....

8 days ago | 0

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Answered
Could not load Matlab parallel parpool.m in a C# wrapper
What is line #14 in driver_evaluate_callibration? And have you been able to successfully run this in MATLAB (not compiled)?

12 days ago | 0

Answered
How to run Simulink and Matlab script run sequentially.
How are you running the Simulink model, interactively or with the sim command? If you run the model with the sim command, that ...

12 days ago | 0

Answered
Is it possible to assign specific nodes in a batch job?
I'm gathering you're using the MATLAB job scheduler (MJS). If so, then no, MJS doesn't provide a way to specify which node(s) t...

12 days ago | 0

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Answered
Parallel Computing Toolbox - Limit of number of workers - R2021a
Based on what your stating, I'm gather it's a single motherboard, with 32 sockets, each socket with 4 physical cores. Is that r...

13 days ago | 0

Answered
Using parfor eliminates use of multithreading
Check the cluster objects' NumThreads property. For instance local = parcluster('local'); local.NumThreads = <set-number-of-th...

16 days ago | 2

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Answered
Transparency violation error for cvx
It doesn't appear so. cvx_begin is calling assignin on line 41. This would be akin to calling local = parcluster('local'); p...

21 days ago | 0

Answered
Worker unable to find mex file
I'm assuming you are using parpool? How are you setting the worker's path on the Linux cluster to find the MEX-file? One optio...

25 days ago | 0

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Answered
Specify the parallel pool job timeout
So you doing something like the following cluster = parcluster; job = cluster.batch(@mycode,...., 'Pool',size); Then what you...

26 days ago | 0

Answered
Restriction of functions run under parfeval
fprintf isn't inactive/not working, as much backgroundPool doesn't capture the "diary" of parfeval. This has the same behaviour...

1 month ago | 0

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Answered
Please suggest me to write the parallel loop in MATLAB without the workers getting aborted during the course of execution? Thanks
The entire pool idles out, not a single worker. My guess is that a worker is crashing because of memory. Tell us a bit more t...

1 month ago | 0

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Answered
Parallel pool hangs on startup for all versions of Matlab
Not sure why this would happen with every version of MATLAB. First try clearing out all the job files (this will destroy past j...

1 month ago | 0

Answered
parfor slower than for
There are several considerations How many dedicated workers? Most often, more workers, the lower the amount of time. Amount of...

1 month ago | 0

Answered
unrecognized function or variable in parfor
I don't have much time to look at this closer, so I'll give a couple of quick thoughts For starters, I would suggest going thro...

1 month ago | 1

Answered
Parallel pool error, automatically clear jobstoragelocation
Look at my answer here for an option: https://www.mathworks.com/matlabcentral/answers/1440039-how-to-prevent-parpool-error#answe...

1 month ago | 1

Answered
How to use All cores
To increase the number of permissible local workers, you could run local = parcluster('local'); local.NumWorkers = 44; pool =...

1 month ago | 0

Answered
How can i run multiple callback functions based on a single event?
If you have the Parallel Computing Toolbox, then this might not be exactly what you're looking for, but it might get you started...

2 months ago | 0

Answered
MATLAB crashes with only two lines in crash dump stack trace
This post isn't getting stack traces, but it might point you in the right direction: https://www.mathworks.com/matlabcentral/ans...

2 months ago | 0

Answered
Parallelization in MATLAB R2018b
Please include how you're starting the parpool and how mex is being called. I suspect the issue is that the files required when...

2 months ago | 0

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Answered
How to run a MATLAB file in for loop in batch file step by step
Try using the -wait switch. E.g. @echo off for /l %%x in (1, 1, 2) do ( call matlab -wait -nosplash -r "cd('H:\EngFiles\A...

2 months ago | 0

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Answered
How to prevent parpool Error
There's a slight change it's because multiple jobs are running at the same time, all contending for the same subfolder. If so, ...

2 months ago | 1

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Answered
Is there a way to start a parellel pool with maximum available workers as the cores on the machine?
pool = parpool('local',maxNumCompThreads); Alternatively, if you're running this through a scheduler (e.g. PBS), you could quer...

2 months ago | 0

Answered
Batch jobs of similar data size and function files are taking different times for job completion, though all are started at same time.
Not sure why the 1st task isn't finishing, but here's another approach. Keep what you have, but rather than using batch, use pa...

2 months ago | 1

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Solved


Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

2 months ago

Answered
Running two loop together at the same time
Try using parfeval, such as the following pseudo code function start_Callback(hObject, eventdata, handles) pool = gcp('nocreat...

2 months ago | 0

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Answered
How to opening 1 instance of MATLAB from MATLAB, but accessing it multiple times
Using the Parallel Computing Toolbox, look at parpool and parfeval. parpool will start a N number of "workers" (i.e. headless i...

2 months ago | 0

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Answered
Cannot start parallel pool R2020a
Do you have other versions of MATLAB installed? If so, which? Had your run parpool successfully on those version(s)? One sugg...

2 months ago | 0

Answered
parFor Worker unable to find file. Unrecognized function or variable 'parameters'
As Edric mentioned, this is/may not parallizable. But if it were, you'd need to make modifications to the for-loop. You've inc...

3 months ago | 0

Answered
Parfor general question and thought
A parfor is run synchoneously. That is, the parfor is blocking until complete. By that logic, two parfor loops can only run se...

3 months ago | 0

Answered
Error using Parfor "Unable to classify the variable 'Sort'"
Try this refactoring the for-loop a bit parfor k=1:Np flag = 0; %#ok<PFTUSW> for i=1:(Nu-1) for j=(i+1):Nu ...

3 months ago | 0

| accepted

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