Compiling in Linux

This page explains several methods to compile code engines in Linux systems.

Introduction

The nairn-mpm-fea code engines can easily be compiled on any Linux system with a C++ compiler and with xerces already installed. Below are details on specific systems that are already set up for compilation, already have xerces, and are currently in use for OSParticulas, NairnMPM, and NairnFEA. See the section on ][#Other Linux Systems|other systems]] for compilation on other Linux/Unix systems.

In brief, each system simply requires a custom argument to the make command. After compilation is over see below for generic details that apply to all system.

Carbon/Hedera Cluster (Oregon State University)

If you are using the Carbon/Hedera cluster in the Oregon State University, Wood Science & Engineering Department, use a simple make command. This system is the default system from compiling the code. The commands for OSParticulas and NairnMPM are:

cd nairn-mpm-fea/NairnMPM/build
make

and for NairnFEA are:

cd nairn-mpm-fea/NairnFEA/build
make

MPM Workstation (Oregon State University)

If you are using mpm in the Oregon State University, Wood Science & Engineering Department, the commands for OSParticulas and NairnMPM are:

cd nairn-mpm-fea/NairnMPM/build
make SYSTEM=mpm

and for NairnFEA are:

 cd nairn-mpm-fea/NairnFEA/build
 make SYSTEM=mpm

Zia Workstation (CISRO)

If you are using Zia Linux system, the commands for OSParticulas and NairnMPM are:

cd nairn-mpm-fea/NairnMPM/build
make SYSTEM=zia

and for NairnFEA are:

 cd nairn-mpm-fea/NairnFEA/build
 make SYSTEM=zia

Inferno (University of Utah)

If you are using Inferno in the University or Utah, CSAFE Group, the commands for OSParticulas and NairnMPM are:

cd nairn-mpm-fea/NairnMPM/build
make SYSTEM=inferno

and for NairnFEA are:

 cd nairn-mpm-fea/NairnFEA/build
 make SYSTEM=inferno

Compilation on Supported Linux Systems

The commands for the above system will compile all source code and install the executables in nairn-mpm-fea/NairnMPM/input or nairn-mpm-fea/NairnFEA/input, respectively.

Other Linux Systems

Compiling on any Linux/Unix system should be straightforward, with the most difficult step usually being installing and linking to the xerces library. The key steps needed for successful compilation:

1. Use a compatible C++ compiler. The code has been tested with at least gcc 3.2 through gcc 4.3.1). It is possible other compilers will need minor changes for compilation.
2. Validation and parsing of the XML files are handled using free third party software from the <a href="http://www.apache.org/">Apache Software Foundation</a> called the <a href="http://xml.apache.org/xerces-c/index.html">xerces validating XML parser</a>. You will need to download xerces and install it on your system. It is available in <a href="http://xml.apache.org/xerces-c/install.html">binary installs</a> for some systems (e.g., Linux and Windows). For others systems (e.g., MacOS X) you need to download the source code and <a href="http://xml.apache.org/xerces-c/build.html">build</a> it. Since revision 274 of the nairn-mpm-fea project, the codes require xerces 3.0 or newer. Prior to this revision, the codes requied xerces 2.8 or older. Unfortunately, the new versions of xerces are not compatible with the older ones.
3. Compiling of NairnMPM or NairnFEA needs access to all the xerces header files. These are provided in the xerces source code downloads. Even iff your system has the xerces binary installed, it may not have the header files. You can get them by <a href="http://xml.apache.org/dist/xerces-c/stable/">downloading the xerces source code</a>, even though you will not need to build it.

Once a suitable compiler, the xerces binary, and xerces header files are installed, compilation may require editing the makefiles in the nairn-mpm-fea folders. Specifically, you will need to edit the makefiles in the build directories (NairnMPM and NairnFEA) and set the following variables:

1. The variable CC: set it to the desired C++ compiler.
2. The variable xercesSo: set it to the path name to the xerces library binary file.
3. The variable headersPath: set it to the path name to the folder containing the xercesc folder of header files.

After setting the variables, use a standard make command to compile the code. Once the code is compiled, do a <a href="../running/index.html">test run</a> to verify it worked. If it compiles, but will not load the xerces library at runtime, you will have to find the system-dependent method to provide the path to the xerces library and make sure the system can find the xerces library.

If you successfully get the code compiled and running on a system that is not listed above, please send email to <a href="mailto:John.Nairn@oregonstate.edu">John.Nairn@oregonstate.edu</a> with the system name and step-by-step instructions for compiling and running the code.