How to terminate any sub function's execution within the main function?
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When I am running a MATLAB function that time if I don’t want to wait for the any sub function result and I want to terminate the running of that sub function but at the same time my others sub function should give me the result and graph .
As a example :
function [………output………]= mainfun (input)
[…..output ….]=subfun1(input)
[…….output….]=subfun2(input)
#some plot
end
maybe for me my subfun2 is taking more time to give me the result that time I want to terminate this function after certain period of time and want to get the other functions result .
8 Comments
Akash Pal
on 27 Jun 2022
Edric Ellis
on 27 Jun 2022
I think parfeval might be a better fit. That allows you to terminate things cleanly. Something like this:
fcns = {@subfun1, @subfun2, @subfun3};
for i = 1:numel(fcns)
fut(i) = parfeval(fcns{i}, 1, input);
end
for i = 1:numel(fut)
[idx, output] = fetchNext(fut);
if checkStuff(output)
% Got the output needed
cancel(fut);
break
end
end
Akash Pal
on 27 Jun 2022
Walter Roberson
on 27 Jun 2022
Is it the sub-functions that are invoking the graphs, or does the main function do the graphing based on the results of the sub-functions ?
parfeval() and related functions cannot do graphics. If you need to do graphics with them, you need to set up parallel data queues to send information back to the main function to do the plotting on its behalf.
Akash Pal
on 27 Jun 2022
Walter Roberson
on 27 Jun 2022
https://www.mathworks.com/help/parallel-computing/parallel.pool.dataqueue.html
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