Changes between Version 21 and Version 22 of ModulesOnAstroBear

Timestamp:

07/13/11 15:40:01 (14 years ago)

Author:

ehansen

Comment:

—

ModulesOnAstroBear

@@ -85 +85 @@
 }}}
 
-Note that {{{i, j, k, x, y, z, xlower, ylower, zlower, and dx}}} are user defined variables and are explained in further detail below. The variable {{{half}}} is used since the data is in the center of the cell, and {{{xPrec}}} is a type of precision.  {{{half}}} and {{{xPrec}}} are already defined elsewhere and can be used if the following statement is at the beginning of {{{problem.f90}}}:
+Note that {{{i, j, k, x, y, z, xlower, ylower, zlower,}}} and {{{dx}}} are user defined variables and are explained in further detail below. The variable {{{half}}} is used since the data is in the center of the cell, and {{{xPrec}}} is a type of precision.   {{{half}}} and {{{xPrec}}} are already defined elsewhere and can be used if the following statement is at the beginning of {{{problem.f90}}}:
 {{{
 USE GlobalDeclarations
@@ -218 +218 @@
 
 [[BR]]
+
+==== Summary ====
+
+Writing a problem module can be extremely complicated, but for first time users writing relatively simple modules, here are a few helpful tips:
+* Understand what the five main subroutines are for, especially {{{ProblemModuleInit}}} and {{{ProblemGridInit}}}
+* Know which variables come with {{{DataDeclarations}}}, {{{GlobalDeclarations}}}, and {{{PhysicsDeclarations}}} and which variables have to be defined by the user
+* Understand the form of the {{{q}}} array
+* Make sure data is scaled so that only computational units are stored in the data arrays
+* It is often helpful to write a module that can run in 2D or 3D so pay close attention to how {{{nDim}}} affects variables
 
 === Additional Physics ===