Question regarding computation time of Temporal Generalization

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Hi,
I'm interested in computing the Temporal generalization so I followed this
guide
(
https://mne.tools/0.17/auto_tutorials/plot_sensors_decoding.html#temporal-generalization
)
I'm using the exact same code as in the example. In my case, I have X being
a 30x256x4000 matrix and y is a 30x1 array (since I have 30 trials, 256
channels and 4000 time samples)
The thing is that processing this code takes a long time, around 60 hs. My
pc specs are: Intel Core i7-7700 CPU @ 3.60 Hz x 8 and 32 GB of RAM.
Is this normal? Am I doing something wrong?

Thank you!
Gabriel
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2

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Hello Gabriel,

I think it is normal: you are training 4000 classifiers!
Any chance you can downsample a bit? 125Hz resolution might be good enough
already.
Also, it is very useful to use parallel jobs e.g. to try: n_jobs=*-1*

Good luck!

Giulia

3

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Okay, that makes sense. I didn't know you could parallelize so easily!

Thanks Giulia!

El vie., 2 de oct. de 2020 a la(s) 12:29, Giulia Gennari (
giulia.gennari1991 at gmail.com) escribi?:

        External Email - Use Caution

Hello Gabriel,

I think it is normal: you are training 4000 classifiers!
Any chance you can downsample a bit? 125Hz resolution might be good enough
already.
Also, it is very useful to use parallel jobs e.g. to try: n_jobs=*-1*

Good luck!

Giulia

        External Email - Use Caution

Hi,
I'm interested in computing the Temporal generalization so I followed
this guide
(
https://mne.tools/0.17/auto_tutorials/plot_sensors_decoding.html#temporal-generalization
)
I'm using the exact same code as in the example. In my case, I have X
being a 30x256x4000 matrix and y is a 30x1 array (since I have 30 trials,
256 channels and 4000 time samples)
The thing is that processing this code takes a long time, around 60 hs.
My pc specs are: Intel Core i7-7700 CPU @ 3.60 Hz x 8 and 32 GB of RAM.
Is this normal? Am I doing something wrong?

Thank you!
Gabriel
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