ThirdParty-ASL

This is an autotools-based build system to build and install the Ampl Solver Library (ASL) as it is used by some COIN-OR projects. The build system is based on COIN-OR BuildTools.

Installation steps

1. Obtain the ASL source code.

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   Note: It is YOUR RESPONSIBILITY to ensure that you are entitled to download and use this third party package.

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   The shell script get.ASL can be used to automatically download and extract the ASL source code. The script will first try to download a specific ASL version from https://coin-or-tools.github.io/ThirdParty-ASL. If this fails, it will attempt to download the latest version published by AMPL: https://ampl.com/netlib/ampl/solvers.tgz

   The script requires wget, curl, or fetch to be available on the system and in the shells search path ($PATH).

2. Run ./configure. Use ./configure --help to see available options.

3. Run make to build the ASL library.

4. Run make install to install the ASL library and header files.

Jacobians with for more than 2^31 nonzeros

If selecting configure option --with-intsize=64, a define for ASL_big_goff will be enabled. This allows ASL to compute Jacobians with more than 2^31 entries. Some solvers may be able to make use of this.

The name of the configure option is chosen to be compatible with some other projects, in particular, ThirdParty-Mumps and Ipopt. However, in the context of ASL it actually changes the type of some index variables from int to ssize_t. On many common 64-bit systems, int has a size of 32 bit and ssize_t has a size of 64 bit.