why is 'gather' performance dramatically poor when I evaluate a tall array (105151 Bytes) by an indexing operation
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Hi experts,
I have a tall array from type double (Mx386) containing voltage values in each .
For visualization purposes I want to evaluate the first values of one electrode, but this single process took 5 h.
test1 = gather(test(1:500,3));
Also evaluating the tall array to get size is a time consumpting events
gather(size(test,1))
How can I accelerate the process? What could likely be the issue?
I'm happy about any hint to solve this.
Thank you in advance!
Eva
6 comentarios
Walter Roberson
el 19 de Jul. de 2019
That's why I asked "Is test input data or is it transformed data?"
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