Monday, July 6, 2009

Google releases open-source Simplex Solver

good news for O.R practitioners. I wish COIN-OR would make their license as friendly as google's simplex solver. We'll have to look into the code to see if it's an efficient and effective implementation (e.g., dual simplex with LU factorization) for large LPs.

Here's the license details cut-and-pasted from the source.

1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 *
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */

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