| #------------------------------------------------------------- |
| # |
| # 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. |
| # |
| #------------------------------------------------------------- |
| |
| # Increase k for better performance gains |
| |
| X = rand(rows=1024, cols=1024, seed=42); |
| R = matrix(0, 1024, 1024); |
| k = 10 |
| |
| for(i in 1:k) { |
| tmp = t(X) %*% X; |
| tmp = tmp + 1; |
| tmp1 = X %*% tmp; |
| } |
| |
| if (sum(t(X) %*% X) > 1) { |
| tmp = t(X) %*% X; |
| tmp = tmp + 1; |
| tmp1 = X %*% tmp; |
| } |
| |
| R = t(tmp1) %*% tmp1; |
| |
| write(R, $1, format="text"); |
| |