Clawpack: AMRClaw Documentation
Adaptive Mesh Refinement
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stepgrid
ΒΆ
Signature:
subroutine
stepgrid(q,
fm,
fp,
gm,
gp,
mitot,
mjtot,
mbc,
dt,
dtnew,
dx,
dy,
nvar,
xlow,
ylow,
time,
mptr,
maux,
aux)
Arguments:
integer,
intent(in)
:
mbc
: Number of ghost cells.
mitot
: Horizontal dimension of grid
mptr
, including ghost cells.
mjtot
: Vertical dimension of grid
mptr
, including ghost cells.
nvar
: Number of solution variables.
mptr
: Pointer to grid being stepped.
maux
: Number of aux variables.
double
precision,
intent(in)
:
dt
: Incoming time step.
dx
: Horizontal cell width of grid
mptr
.
dy
: Vertical cell width of grid
mptr
.
xlow
: Lower
x
-index of grid, including ghost cells.
ylow
: Lower
y
-index of grid, including ghost cells.
double
precision,
intent(inout)
:
q(mitot,mjtot,nvar)
: Solution values on the grid, to be overwritten.
aux(mitot,mjtot,maux)
: Aux variable values on the grid.
double
precision,
intent(out)
:
fm(mitot,mjtot,nvar)
: Fluxes left of cell edges.
fp(mitot,mjtot,nvar)
: Fluxes right of cell edges.
gm(mitot,mjtot,nvar)
: Fluxes below cell edges.
gp(mitot,mjtot,nvar)
: Fluxes above cell edges
dtnew
: Suggested new time step for this grid’s solution.
Description:
Takes a time step on the grid
mptr
.
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