高性能C ++多维数组

问题描述

我正在寻找有关高性能多维数组库/ C ++的建议。我真正需要的是：

• 动态分配在运行时确定大小的数组的能力

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• 能够访问和修改单个数组值（快速）




• 算术如 array1 = array2 + 2 * array3

我遇到过各种图书馆，包括：

• ，它看起来正是我所需要的，但似乎维护得不是很好（最新的稳定版本是5年前）




• ，它不支持数组算术，并且与Blitz ++相比显得相当缓慢。




• Jonn Bowman的，没有文档。

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解决方案 div>

维护得非常好（现在，至少，每个月都有新版本），并支持您需要的其他操作。




I am looking for advice regarding high performance multi-dimensional array libraries/classes for C++. What I really need is:

• the ability to dynamically allocate arrays with a size determined at run-time

• the ability to access and modify single array values (fast)

• to be able to use simple array arithmetic such as array1 = array2 + 2 * array3

• a well-maintained library

I have come across various libraries, including:

• Blitz++, which looks exactly what I need, but which doesn't seem very well maintained (latest stable release was 5 years ago)

• Boost, which doesn't support array arithmetic, and appears to be a quite slow compared to say Blitz++.

• Jonn Bowman's array.h which has no documentation.

Does anyone have any other suggestions or comments about the above options?

解决方案

Eigen is extremely well-maintained (right now, at least, there are new versions coming out every month) and supports the other operations you need.

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