saving mat files >2gb

I was trying to save my variables which greater than 2gb, as per the previous error using -v7.3, It was taking considerably long time and in between my laptop blanked out, so I had to restart it again, my lap is 8gb ram,i5 8thgen, is it a ram problem(do i need to expand) or is there any better version of saving the variable larger than 2gb?

[KSSV]

Is it a single variable? single matrix?

[Raj]

Which version of MATLAB are you using? See if this helps:

https://in.mathworks.com/matlabcentral/answers/381308-bigger-than-2gb-data-storage?s_tid=answers_rc1-3_p3_MLT

https://in.mathworks.com/help/matlab/ref/save.html#inputarg_version

[Guillaume]

Since you must have had the variables in memory in order to save them to a mat file, you clearly have enough RAM.

How much larger than 2GB are you variables?

What does my laptop blanked out mean? If it went to sleep, then a) do the saving when you're plugged in, and b) change your power options so it doesn't go to sleep.

[Stephen23]

Keerthi Sasikumar's "Answer" moved here:

There were 2 variables which I had to save, and since it showed error: 'unable to save due to size greater than 2gb,use matfile v7.3', i used the command save('final_lan.mat', 'newdata','newdata_2', '-v7.3') The variable is daily sst anomaly lanczos filtered data which hasn size 1440*720*365. Now it resolved when I tried to save each variable seperatly in the same way.

[Keerthi Sasikumar]

Thank you Guillaume , I mean, while the code was running. my laptop just crashed and went black screen, I had to shut down entirely and restart the system again.

Answer 1

[Jalaj Gambhir]

Hi,

Try saving the variable in an HDF5 dataset using ‘h5write’.