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version (3.37 KB) by Stuart McGarrity
Detect and Diagnose MATLAB® Memory Fragmentation Problems

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Updated 01 Sep 2016

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Editor's Note: This file was selected as MATLAB Central Pick of the Week

This utility measures the size of the largest contiguous block of virtual memory available to MATLAB® (after startup), then recommends solutions to increase its size should it be smaller than typical. The recommended solutions can help to reduce the occurrence of 'Out of Memory' errors. If results do not make sense, please email the author of this submission, sending output of command 'feature dumpmem' after startup.

Cite As

Stuart McGarrity (2020). chkmem (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (7)

No. The problem of MATLAB memory fragmentation (which is all the utility can help with) mostly goes away in 64-bit. What problem are you seeing?

Is there a version for 64-bit windows?



Grisha Lerner

Great add


Updated license

Copyright work.

Added trademarks.

Added trademark

Fixed a URL

MATLAB Release Compatibility
Created with R14
Compatible with any release
Platform Compatibility
Windows macOS Linux