Speeding Up Exact Algorithms for Maximizing Lifetime of WSNs Using Multiple Cores

Algorithm 1

generate_sufficient_subproblems.

Input: graph , sink , desired subproblem number , a feasible decomposition method

Output: a set of subproblems

(1) ;

(2) apply on ;

(3) while   do

(4)let be an arbitrary element of , remove from ;

(5) apply on ;

(6)if   then

//  is a tree

(7)add to ;

(8)else

(9);

(10) ;

(11) return  ;