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Madeline Lawrence
@lawrencemadeline 22, Aug 2023 12:00 AM
break a loop iteration
How can you break a loop iteration, if it takes a long time?
answers 2
Answer 1
Chance Boorman
@boormanchance 31, Aug 2023 10:42 AM
In case of placing multiple breakpoints it is vital to identify them e.g. by printing breakpoint info. It is crucial to design breakpoints in a way allowing to resume computations from the point it was disrupted. Sometimes instead of a command break it is better to put a message and a debugger breakpoint which will give you command-line access while the program is paused. Then you can continue from this exact point in code.
Answer 2
Chance Boorman
@boormanchance 31, Aug 2023 10:41 AM
One way is performing a time control with the tic and toc functions. For example, if code takes an hour, then break the loop:
% for loop
time0 = tic;
timeLimit = 60*60*1; % 1 hour == 3600 seconds
for ...
...
if toc(time0)>timeLimit
break
end
end
or using while loop:
time0 = tic;
timeLimit = 60*60*1; % 1 hour == 3600 seconds
while conds && toc(time0)<timeLimit
...
end