Remove call to VecOps::Combinations in query 6 #19
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VecOps::Combinations creates a jets.size()x3 matrix. Moreover, this newly created matrix is used only as index, such as jets[c[0][i]]. It makes sense to get rid of this matrix and access the elements directly. In this case, we have contiguous memory access only. Hence, improved performance of the find_triject function. Analogous to root-project/rootbench#266.
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VecOps::Combinations creates a jets.size()x3 matrix. Moreover, this newly created matrix is used only as index, such as jets[c[0][i]]. It makes sense to get rid of this matrix and access the elements directly. In this case, we have contiguous memory access only. Hence, improved performance of the find_triject function.
Analogous to root-project/rootbench#266.