NAME
Grid_computeVarDiff
SYNOPSIS
call Grid_computeVarDiff(integer(in) :: level,
integer(in) :: gr_iRefSoln,
integer(in) :: gr_iSoln,
integer(in) :: ires)
DESCRIPTION
Compute the current difference of two variables. If level is -1, only the leaf block residuals are calculated; otherwise, residuals are computed for all blocks of the given level.
ARGUMENTS
level - the level of blocks to take the residual for, or -1
for all LEAF blocks.
gr_iRefSoln - the "reference solution" variable
gr_iSoln - "the solution" variable
ires - the residual variable
RESULT
The difference between the reference solution and solution in the blocks (either selected by level, or all LEAF blocks) is placed in the variable ires.