Implementation differences between regular tall array operations and mapreduce

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Eric Martin
Eric Martin 2019-12-11
回答： Kartheek Akurati 2020-5-22
Hello together,
I have a question regarding the way Matlab processes the data with a tall array, and more specifically what is the difference to mapreduce.
I could of course code the two and compare the performance but I would like to understand the underlying mechanism.
The mechanism for mapreduce is clearly described in the matlab documentation.
https://in.mathworks.com/help/matlab/import_export/getting-started-with-mapreduce.html
This is nonetheless not the case for regular operations on tall array.
So, imagine I have a tall array which is a vector of temperature records and that I want to take the max of it, what will be the difference between taking the max of the tall array and using a mapreduce implementation?
Thanks in advance.

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回答（1 个）

Kartheek Akurati
Kartheek Akurati 2020-5-22
Hello Eric Martin,
Detailed information regarding Tall arrays is here:https://www.mathworks.com/help/matlab/import_export/tall-arrays.html
Thanks and regards,
Kartheek.

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