Fast copy of Matlab array to .NET array

2016 5 29
1 个回答
更新时间：2016 5 30
6 次查看（30 天）

0 个投票

On a modern machine NET.convertArray takes about 1.5 second to convert a 1GB Matlab uint8 1D array... Why is it so slow? Is there a faster way to transfer data from Matlab to a .NET array?

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Sébastien Tosi
Sébastien Tosi 2016-5-29
Actually my aim is to pass read only data to a C# class loaded in Matlab. Hence ideally it would be faster not to duplicate data but create a .NET array pointing to the Matlab array... is this possible?

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Walter Roberson
Walter Roberson 2016-5-29

0 个投票

"Hence ideally it would be faster not to duplicate data but create a .NET array pointing to the Matlab array... is this possible?"
No. The array data is in-line with some overhead data about bounds and type.
http://stackoverflow.com/questions/487202/memory-layout-of-a-net-array

2 个评论
显示 无 隐藏 无

Sébastien Tosi
Sébastien Tosi 2016-5-30
Then is there a way to convert/cast a C# array? I noticed that conversion of larger type arrays (e.g. int) of same size in memory is significantly faster. Probably since there are less iterations in the loop and the process is not memory bound.
Walter Roberson
Walter Roberson 2016-5-30
I do not know about C# arrays.

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 .NET Methods in MATLAB 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by