GFEC Version 3.0 Installation Guide MATTHEW WARD SALVESON

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1 GFEC Version 3.0 Installation Guide MATTHEW WARD SALVESON August 2010

2 Contents 1 Unpacking the Zip File 3 2 External Software Installation GMSH Gnuplot GFEC Installation 7 4 Program Configuration Sample gfec.cfg File Example Problems 11 6 Cygwin Installation 12 7 Visual Studio Installation 16 1

3 List of Figures 2.1 GMSH Gnuplot GFEC Installation External Applications Tab Cygwin Installation Install from Internet Cygwin Installation Download Site Cygwin Installation Select Packages Visual Studio - GFEC

4 Chapter 1 Unpacking the Zip File The GFEC zip file contains the following: The Windows installer for GFEC A directory containing a recent version of GMSH A directory containing a recent version of gnuplot A directory containing the Fortran source code for the GFEC finite element processor A directory containing the.net source code for the GFEC graphical user interface. A directory containing the script file used to generate the Windows installer These files can be unzipped to any convenient location on your computer. The Windows installer will install the actual executable file for you. 3

5 Chapter 2 External Software Installation Required external software packages needed to run GFEC include: GMSH ( gnuplot ( A internet browser such as Mozilla ( A pdf file reader such as Adobe Acrobat( A text editor such as Wordpad Additionally, to modify the user interface and rebuild the Windows installer, you will need: Microsoft Visual studio 2010 Inno Setup IMPORTANT: GFEC is built and tested on a system running Windows 7 and the latest.net 3.5 environment. It may work on older systems, but the author makes no guarantees. 2.1 GMSH GMSH is a freely available finite element pre- and post-processor. The latest source and binary files may be found on the web site listed above. It is also 4

part of many of the Linux repositories. To install GMSH, simply copy the executable and its associated DLL files to a convenient directory. A recent version of GMSH is included in the GFEC zip file.

6 part of many of the Linux repositories. To install GMSH, simply copy the executable and its associated DLL files to a convenient directory. A recent version of GMSH is included in the GFEC zip file. Figure 2.1: GMSH 2.2 Gnuplot Gnuplot is a powerful open-source scientific plotting tool. Source and binaries are available for Windows at the web site listed above. Gnuplot can be found on all Linux repositories. To install gnuplot, simply copy the executable and its associated DLL files to a convenient directory. A recent version of gnuplot is included in the GFEC zip file. 5

7 Figure 2.2: Gnuplot 6

8 Chapter 3 GFEC Installation GFEC (both the graphical user interface and the actual finite element processor) are packaged together using a windows installer, so they can both be installed by simply executing setup.exe in the GFEC zip file. An item will be added to the Windows start menu and an icon will be added to the desktop. 7

9 Figure 3.1: GFEC Installation 8

10 Chapter 4 Program Configuration GFEC must be configured such that the program can correctly locate all of the software packages that are external to the actual GFEC graphical user interface. This can most easily be done by clicking on the External Apps tab of main GFEC window (see Figure 4.1). The user can explicitly specify the location of all external applications within this tab. The pre-processor and post-processor should be specified as the GMSH executable. The finite element processor should be specified as gfec fe.exe located in the GFEC install directory. If the user modifies the finite element source code and compiles it (using Cygwin), the finite element processor should be specified as the new gfec.exe executable instead (located under the home directory in Cygwin). The 2D plotter should be specified as gnuplot (and the wgnuplot.exe file in particular). The text editor should be specified as Wordpad or an equivalent. The author recommends the use of Notepad++. See The web browser should be specified as Internet Explorer, Mozilla, or an equivalent. The PDF viewer should be specified as Adobe Reader or an equivalent. The author recommends the use of Evince. See 9

11 The user should be sure that the full path to each of these external applications is properly specified. The user should save these settings by clicking the Set as Default button on the External Apps tab. This will create (or overwrite) a file called gfec.cfg that is stored in the user s My Documents folder in a directory called GFEC. The Load Default Settings button will load this file and overwrite all external applications settings. The file is in ASCII format and may also be edited directly. A typical gfec.cfg file is shown below. 4.1 Sample gfec.cfg File C:\Documents and Settings\matts\Desktop\gmsh Windows\gmsh. exe C:\cygwin\home\matts\gfec\gfec. exe C:\Documents and Settings\matts\Desktop\gmsh Windows\gmsh. exe C:\Documents and Settings\matts\Desktop\gnuplot\bin\wgnuplot. exe C:\Program Files\Windows NT\Accessories\wordpad. exe C:\Program Files\Mozilla Firefox\firefox. exe C:\Program Files\Adobe\Reader 9.0\Reader\AcroRd32.exe Figure 4.1: External Applications Tab 10

12 Chapter 5 Example Problems Example problems for a number of common finite element are included in GFEC s context sensitive help. After launching GFEC, press F1 to access the help file. 11

13 Chapter 6 Cygwin Installation In order to modify the Fortran finite element processor, it is necessary to install Cygwin on your Windows system. Cygwin offers some of the functionality of a Linux operating system, and the gfortran compiler in particular. InordertoinstallCygwinitisnecessarytodownloadandruntheCygwin setup.exe file from When you launch setup.exe, specify that the program should be installed from the internet. See Figure 6.1. Follow the prompts on the installer until you are prompted to pick a download site (see Figure 6.2). Pick a site that is as close as possible to your geographic location. Finally, you will be prompted to specify which Cygwin applications should be downloaded. Leave everything as default except for Devel and Math group of applications. Single click on the word default and Math and the option will change to install. See Figure 6.3. Follow the remaining prompts and be patient. Cygwin can take quite a while to download and install. Once Cygwin is intalled, make sure that you create a GFEC directory within your Cygwin home directory, and transfer the Fortran source code included in the GFEC zip file. Also, make sure you specify your newly compiled finite element processor under the GFEC external applications tab. Cygwin (and any programs that Cygwin compiles) will need to access specific DLL files. The executable file gfec fe.exe is installed with the appropriate DLL files. These DLL files may or may not correspond to the latest Cygwin DLL files installed with Cygwin on your local machine. To this end, you will need to add the following two directories to your windows path: /cygwin/bin /cygwin/lib/lapack 12

To add these directories to the windows path (in Windows 7), please follow the following steps: 1. From the desktop, right-click My Computer and click Properties. 2.

14 To add these directories to the windows path (in Windows 7), please follow the following steps: 1. From the desktop, right-click My Computer and click Properties. 2. In the System Properties window, click on the Advanced tab. 3. In the Advanced section, click the Environment Variables button. 4. Finally, in the Environment Variables window (as shown below), highlight the Path variable in the Systems Variable section and click the Edit button. Add or modify the path lines with the paths you wish the computer to access. Each different directory is separated with a semicolon. Note that when you execute gfec fe.exe (which is installed with GFEC, you will be utilizing the Cygwin DLL files that were used to create this executable file. When you execute your own custom version of gfec fe.exe, you will be utilizing the Cygwin DLL files that you have just defined on the Windows path. Figure 6.1: Cygwin Installation Install from Internet 13

15 Figure 6.2: Cygwin Installation Download Site 14

16 Figure 6.3: Cygwin Installation Select Packages 15

17 Chapter 7 Visual Studio Installation The user interface is written in VB.net on the Microsoft Visual Studio 2010 platform. The gfec gui.zip can be unzipped to a convenient location. The gfec.sln can be opened directly from Visual Studio. 16

18 Figure 7.1: Visual Studio - GFEC 17

19 Index Cygwin installation, 12 example problems, 11 External Software, 4 GFEC installation, 7 GFEC zip file, 3 GMSH installation, 4 gnuplot installation, 5 program configuration, 9 Visual Studio Installation, 16 18

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