本征密稀疏矩阵乘积是带螺纹的吗? [英] is eigen dense-sparse matrix product threaded?

问题描述

我知道稀疏产品是根据文档编写的:

I know that sparse-dense product is threaded according to the documentation:

https://eigen.tuxfamily.org/dox/TopicMultiThreading.html

那么稀疏呢?

推荐答案

更精确地说，仅当左侧稀疏矩阵是行优先的时，稀疏稠积才是多线程的.相反，如果右侧的稀疏矩阵是列大的，则稠密的稀疏乘积是多线程的.

To be more precise, sparse-dense product is multithreaded only if the left-hand-side sparse matrix is row-major. Conversely, dense-sparse products is multithreaded if the right-hand-side sparse matrix is column-major.

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