| #------------------------------------------------------------- |
| # |
| # 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=20000, cols=300, seed=42); |
| X2 = rand(rows=20000, cols=ncol(X)/2, seed=42); |
| R = matrix(0, 1, ncol(X)); |
| |
| for (i in 1:ncol(X)) { |
| tmp = cbind(X2, X[,i]); |
| Res1 = t(tmp) %*% tmp; |
| while(FALSE) {} |
| R[1,i] = sum(Res1); |
| } |
| |
| write(R, $1, format="text"); |
| |
