GfsBox

From Gerris

Revision as of 16:39, 24 July 2012 GeordieMcBain (Talk | contribs) (new page) ← Previous diff		Current revision Popinet (Talk | contribs)
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	The syntax in parameter input files is:		The syntax in parameter input files is:
-	[[GfsBox]] {	+	[[GfsBox]] {
-	pid = 0	+	pid = 0
-	left = [ [[GfsBoundary]] ]	+	left = [ [[GfsBoundary]] ]
-	right = [ [[GfsBoundary]] ]	+	right = [ [[GfsBoundary]] ]
-	top = [ [[GfsBoundary]] ]	+	top = [ [[GfsBoundary]] ]
-	bottom = [ [[GfsBoundary]] ]	+	bottom = [ [[GfsBoundary]] ]
-	}	+	}
-	The <code>pid</code> is the unsigned integer (starting from zero) that identifies the processor to which the box is assigned in a parallel run.	+	The <code>pid</code> is the unsigned integer (starting from zero) that identifies the processor to which the box is assigned in a parallel run (the ''rank'' in MPI terms).
	In parameter files produced by [[GfsOutputSimulation]], it may also contain:		In parameter files produced by [[GfsOutputSimulation]], it may also contain:

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Current revision

GfsBoxes are the square or cubes (in two or three dimensions, respectively) of which the domain (for a GfsSimulation, etc) is built. They are also the basic element of domain decomposition for running Gerris in parallel.

The syntax in parameter input files is:

GfsBox { 
  pid = 0 
  left = [ GfsBoundary ]
  right = [ GfsBoundary ]
  top = [ GfsBoundary ]
  bottom = [ GfsBoundary ]
}

The pid is the unsigned integer (starting from zero) that identifies the processor to which the box is assigned in a parallel run (the rank in MPI terms).

In parameter files produced by GfsOutputSimulation, it may also contain:

id

an unsigned integer identifier

size

number of cells

x, y, z

the Cartesian coordinates of the centre