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Step-by-step Instructions for compiling
TOUGH2 using DIGITAL/Compaq Visual Fortran
S. Finsterle, April 6, 2001
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This file complements the TOUGH2 read.me file.
It provides step-by-step instructions for compiling and linking, 
TOUGH2 on a PC using the DIGITAL/Compaq Visual Fortran compiler.

1. Preparation
--------------
Following the instructions in the read.me file,
copy all TOUGH2 source files into an installation directory,
for example: C:\tough2

2. Developer Studio
------------------- 
Start DIGITAL/Compaq Visual Fortran's Developer Studio.

3. Create new Project
---------------------
Select <File>, <New...>
Select <Projects>, <Win32 Console Application>, 
<Project name:> tough2
<Location:> C:\tough2
Check <Create new workspace>, <Platforms:> Win32, <OK>

4. Add source files
-------------------
Select <Project>, <Add to project>, <Files...>
Select the following source files (hold Ctrl-key):

t2cg2.f (or t2cg22.f, if available)
meshm.f
eos3.f (or other EOS module)
ma28.f
t2f.f
t2solv.f

(t2cg1.f can be used in place of t2cg2.f and t2solv.f)
<Insert into:> tough2
<OK>

5. Compiler settings
--------------------
Select <Project>, <Settings...>
<Settings for>: Win32 Release

<General>, <Not Using MFC>
<Intermediate:> blank
<Output files:> blank

<Fortran>
<Category>: General
<Optimization level:> Optimize for Speed
In the <Project option> window, add the following options:

/alignment:dcommons
/real_size:64

and delete

/check:bounds

Leave all other settings unchanged

<Link>
<Output File Name:> tough2.exe (or other convenient name for executable)
<OK>

6. Compile and Link
-------------------
<Build>, <Build tough2.exe>


7. Miscellaneous
----------------
A new executable must be built for each EOS module. For some 
modules, certain subroutines must be renamed to avoid duplicate
entries (see instructions in read.me file).

To redimension TOUGH2, adjust parameter statements in file T2:
<File>, <Open...>
<File name:> T2
Modify parameter statements, save file, and rebuild TOUGH2

The configuration can be saved and reopened as a workspace.