我读过一篇关于采用动态方案拟订方法优化tric产品的文章,我希望看到如何加以推广:uBLAS。
http://www.boost.org/doc/libs/1_47_0/libs/numeric/ublas/doc/operations_overview.htm”rel=“nofollow” (在页末谈论这个问题),但似乎他们处理这一问题。 当你写<代码>R = prod(A, prod(B,C));, 图书馆对<代码>Ax(BxC)或<代码>(AxB)x C,视<代码>/A、B和C>。
如何做到这一点? 图书馆如何“去掉方括号”? 在撰写这一法典时,我认为将评价<编码>prod<>/code>的论点,然后将行使这一职能。
rel=“nofollow”>FAQ提到了表达模板的概念。 是否将其联系起来?
Yes, expression templates (which you may find under the name "expression trees") are involved.
基本上,<代码>prod 结果没有回馈,但操作的包装物(矩阵乘数)和点击器有两种投入。 如果要求<代码>prod,则作为投入的包装,可采用重新排序的优化。
然而,从我对该页的解读来看,没有实行这种优化(它称它为打字结构)。
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