A Consideration on an Implementation of Directive of “Reduction” in Parallel Computing

Abstract

  This paper treats with an implementation of directive of “reduction” for calculation of inner product in parallel computing. The accuracy of calculation of inner product depends delicately on the order of data because of rounding errors occured by the finite arithmetics. Therefore, we propose an implementation for inner product without directive of “reduction”. we verify effectiveness of the proposed implementation of calculation of inner products in parallel computing.