multik in andriod14 ，the transpose funtion is too slow

Kotlin / multik

Multidimensional array library for Kotlin

https://kotlin.github.io/multik/

Apache License 2.0

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multik in andriod14 ，the transpose funtion is too slow #204

Open CiChina opened 2 months ago

CiChina commented 2 months ago

in andriod13，my app with multik run a ndarray only use about 100ms to transpose a ndarray，but in andriod 14，this process needs 2000+ms

devcrocod commented 2 months ago

Oh, this is very strange. Matrix transposition is in multik-core and isn't tied to platforms or android versions.

Does the code differ from the version?

What is the size of the ndarrays?

Transposition, as far as I remember, is a view/lazy operation. We don't directly copy the data itself, we only change its representation. Copying occurs if data consistency is required for a subsequent operation.