Changes between Version 3 and Version 4 of AstroBearStandardOut

Timestamp:

01/20/14 12:55:17 (11 years ago)

Author:

Erica Kaminski

Comment:

—

AstroBearStandardOut

@@ -130 +130 @@
   * Likewise the global sweep allocations should be 0 or '------'
 
-* The next line gives you the filling fractions of every level.  This is the ratio of the number of cells refined to the total number of cells on that level.  If you want the volume filling fraction of level n you would multiply the filling fractions of level 0 to the filling fractions of level n-1
+* The next line gives you the filling fractions of every level.  This is the ratio of the number of cells refined to the total number of cells on that level. So in this case, the entries go like, f(0) = 0.033, f(1)=0.741, f(2)=0.744, f(3)=0.748. This means that ~3% of level 0 's grid is refined to level 1, ~74% of level 1's grid is refined to level 2, and so on. To get the percentage of the grid's volume that is refined to level n, you then would multiply the filling fractions of all the levels less than n together (note this is strictly for n>1). This gives you the total fraction of the grid refined to that level. For example, the volume filling fraction of level 2 is vf(2) = f(0)*f(1). Similarly, vf(4)=f(0)*f(1)*f(2)*f(3). Note that the volume filling fraction doesn't make sense for level 0, and that vf(1)=f(0).
 
 * The next line tells you the current efficiency of advances - that is what fraction of the walltime cpu's are spending in the hyperbolic advance stage.  This doesn't include elliptic updates - or any other amr related maintenance (restriction/prolongation/flux-synchronization/regridding etc...)