MATLAB Answers

Carlos
0

Is there a way to free RAM consumed by Matlab without closing Matlab?

Asked by Carlos
on 20 Feb 2013
Latest activity Commented on by Jo Blo
on 18 May 2019
Hi,I am working with a program which is consuming a huge amount of RAM memory, and I would like to know if it is possible to free RAM memory consumed by Matlab(64 bit Windows Matlab)after executing this program and without closing matlab or using the clear command( which does not work in this case).
I have been going through some previous answers, and I cannot find a clear answer to my question. So any input is interesting for me.
Thank you in advance.

  0 Comments

Sign in to comment.

5 Answers

Answer by Walter Roberson
on 20 Feb 2013

"clear" and "pack" are the only two commands that have a chance of working.

  1 Comment

My conclusion from my previous experience in Matlab was that "clear" and "pack" are the only two commands that could help in my case(even though I knew they did not work in my particular case because I had used those commands previously without any success), however in some answers I read some confusing answers andI wanted some expert advice. Thank you Walter.

Sign in to comment.


Answer by Matt J
on 20 Feb 2013
Edited by Matt J
on 20 Feb 2013

You might try setting the big variables to [], to see if that makes a difference.
Or, overwrite the old big variables with the new big ones.
new=old; clear old
new(index)=...

  0 Comments

Sign in to comment.


Answer by Michael Melnychuk on 29 Dec 2018

I am blown away at how bad MatLab is at handling memory. I have gone through what you have all gone through (many times) and there are no solutions to something so basic. One of the main devs went so far as to blame it on Mac OS. Amazing how every other app on my computer can manage memory effectively but somehow MatLab can't. The only solution I've found is to save all the figures and variables you've been working on and restart the program. Great solution. My advice would be if you're not overly invested to start using Python.

  1 Comment

@Michael: You did not mention what your actual problem is. The general claim, that Matlab is "bad" at handling memory is neither useful nor clear.

Sign in to comment.


Answer by André Brás on 27 Nov 2017

Hey there!
Did you find solution for your problem? I'm fighting with the same error...
Best regards.

  0 Comments

Sign in to comment.


Answer by Michael Melnychuk on 30 Dec 2018

This comment is not meant for you Jan, it's meant for all the people that search this same issue with no solution to be found. It's a distant early warning to avoid MatLab. I've used MatLab only becuase is has previously been standard in my academic department, but there is a massive movement away from MatLab and toward Python and I'm letting new people know that this is a dying platform that inhibits research and that Python is free, and that if you are just learning to code don't waste your time with it, learn python. It has all the same funcstionality, massive developer support, and much much better graphics.. All the best to you.

  1 Comment

Matlab is as bad as other programs when it comes to freeing memory. Chrome, Firefox, MathCAD, Eclipse, name it! They all don't give a s**t.
Python being a programming language, it allows you to mishandle the memory as you wish. Sooner or later, the IDEs and libraries and toolkit will be plagued by memory leaks as well, if that's not already the case.
I'm not taking any side here. Just doing a reality check.

Sign in to comment.