[Mne_analysis] Filtering and ICA memory issues

[Mads Jensen]

Hi all,

I would like to hear what people do to filter and run ICA and if there 
is any advise.

We usually have around an hour of recording which gives ~4.5 to 5GB of 
raw fiff files. First filtering and then running ICA in MNE-python 
requires a lot of memory, sometimes as much as 50GB. So, I fairly often 
get a memory error.

I would prefer not to downsample at this stage in the process. So, I 
kindly ask if anybody has any thoughts and/or practises to avoid very 
heavy memory use.

best wishes,
mads