# memory usage in dmrg (julia)

**URL:** <https://itensor.discourse.group/t/memory-usage-in-dmrg-julia/562>\
**Category:** ITensor Julia Questions\
**Created:** [December 17, 2022, 8:27am UTC](https://itensor.discourse.group/t/memory-usage-in-dmrg-julia/562 "2022-12-17T08:27:38Z")\
**Posts on this page:** 1\
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**Author:** ![Kristin](https://avatars.discourse-cdn.com/v4/letter/k/2bfe46/32.png) [@Kristin](https://itensor.discourse.group/u/Kristin)\
**Post date:** [December 17, 2022, 8:27am UTC](https://itensor.discourse.group/t/memory-usage-in-dmrg-julia/562/1 "2022-12-17T08:27:38Z")

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Dear there,  
I’ve a quick question. I wonder is there a way to know the memory usage for each sweep? (like some built-in function in itensor that can be used to extracted how much RAM is used in a sweep or sweep with different bonddim etc.) because I met some out-of-memory problem… I find a possible useful function called “write-to-disk” in itensor (didn’t try yet), but still want to know my actual RAM usage.  
Thank you so much!

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