[Mne_analysis] Memory error reading raw files

[Alexandre Gramfort]

        External Email - Use Caution        

hi Karin,

loading the file in memory will double the size as we do computations
in double precision.

I would see if you can use preload=False on read. The only thing that
can be problematic
is filtering which requires preload=True. In this case, I would
process data by chunks. You can
use the raw.crop method for this.

HTH
Alex



On Sun, Dec 16, 2018 at 5:22 PM Karin Westin <karin.westin85 at gmail.com> wrote:
>
>         External Email - Use Caution
>
> Hi!
> I'd like to preload raw-fif files (~40 min recording, sample rate 5000 Hz, 10.2 GB) but it seems I'm running out of memory (RAM 16GB, 2x8 GB). Do I simply need more memory or is there any other way to tweak the loading of the raw files?
>
> Best,
> Karin
> _______________________________________________
> Mne_analysis mailing list
> Mne_analysis at nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis