I Recursive Halving and Doubling What about adding vectors? That is, how do you add several vectors component-wise to get a new vector? The answer is, you employ the method discussed earlier in a component-wise fashion This fascinating way to reduce the communications and to avoid abundant summations is described next. this method utilizes the recursive halving and doubling technique and is illustrated in Figure 13.3Recursive Halving and Doubling • What about adding vectors? That is, how do you add several vectors component-wise to get a new vector? The answer is, you employ the method discussed earlier in a component-wise fashion. This fascinating way to reduce the communications and to avoid abundant summations is described next. This method utilizes the recursive halving and doubling technique and is illustrated in Figure 13.3