| #------------------------------------------------------------- |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| #------------------------------------------------------------- |
| |
| # Read command line arguments |
| args <- commandArgs(TRUE) |
| |
| # Set options for numeric precision |
| options(digits=22) |
| |
| # Load required libraries |
| library("Matrix") |
| library("matrixStats") |
| |
| |
| # Read matrices A, B, and C from Matrix Market format files |
| A = as.matrix(readMM(paste(args[1], "A.mtx", sep=""))) |
| B = as.matrix(readMM(paste(args[1], "B.mtx", sep=""))) |
| |
| # Perform the matrix operation |
| R = sum(diag(A %*% B)) |
| rA = A; |
| for(i in 1:nrow(rA)) { |
| rA[,i] = rev(rA[,i]) |
| } |
| R = R + sum(diag(rA)) |
| |
| # Write the result scalar R |
| write(R, paste(args[2], "R" ,sep="")) |
| |
