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Fixes #1228.

Reduce the number of data copies of a tensor. Use the Tensor.Copy() method to move contents directly into destination, rather than into a list[T] first, and then destination.

@jignparm jignparm self-assigned this Oct 17, 2018
@jignparm jignparm requested a review from vaeksare October 17, 2018 16:58
@jignparm jignparm changed the title [WIP] Optimize tensor copy - address OnnxTransform freezing OnnxTransform freezing - replace tensor.CopyTo(List<float>) with tensor.CopyTo(float[]). Oct 18, 2018
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    /// Sonoma API only provides CopyTo() functions with overloaded versions

Since this comment is no longer accurate, you should change/remove it.


Refers to: src/Microsoft.ML.OnnxTransform/OnnxUtils.cs:334 in 4cf52d8. [](commit_id = 4cf52d8, deletion_comment = False)

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:shipit:

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@Ivanidzo4ka Ivanidzo4ka left a comment

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:shipit:

@jignparm jignparm merged commit c6d4e62 into dotnet:master Oct 18, 2018
var typedDst = (System.Single[])(object)dst;
tensor.CopyTo(listDst);
listDst.CopyTo(typedDst);
tensor.CopyTo(typedDst);
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You could add a CopyTo(T[] dst) to Sonoma and avoid this method entirely.

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4 participants