def _eval_opts(self, opts, default=None):
# Boundary conditions, much like initial conditions, can be
# parameterized by values in [constants] so we must bring these
# into scope when evaluating the boundary conditions
cc = self.cfg.items_as('constants', float)
cfg, sect = self.cfg, self.cfgsect
# Evaluate any BC specific arguments from the config file
if default is not None:
return [npeval(cfg.getexpr(sect, k, default), cc) for k in opts]
else:
return [npeval(cfg.getexpr(sect, k), cc) for k in opts]
def _eval_opts(self, opts, default=None):
# Boundary conditions, much like initial conditions, can be
# parameterized by values in [constants] so we must bring these
# into scope when evaluating the boundary conditions
cc = self.cfg.items_as('constants', float)
cfg, sect = self.cfg, self.cfgsect
# Evaluate any BC specific arguments from the config file
if default is not None:
return [npeval(cfg.getexpr(sect, k, default), cc) for k in opts]
else:
return [npeval(cfg.getexpr(sect, k), cc) for k in opts]
def set_ics_from_cfg(self):
# Bring simulation constants into scope
vars = self._cfg.items_as('constants', float)
if any(d in vars for d in 'xyz'):
raise ValueError('Invalid constants (x, y, or z) in config file')
# Construct the physical location operator matrix
plocop = self._basis.sbasis.nodal_basis_at(self._basis.upts)
# Apply the operator to the mesh elements and reshape
plocupts = np.dot(plocop, self._eles.reshape(self.nspts, -1))
plocupts = plocupts.reshape(self.nupts, self.neles, self.ndims)
# Extract the components of the mesh coordinates
coords = np.rollaxis(plocupts, 2)
vars.update(dict(zip('xyz', coords)))
# Evaluate the ICs from the config file
ics = [npeval(self._cfg.get('soln-ics', dv), vars)
for dv in self._privarmap[self.ndims]]
# Allocate
self._scal_upts = np.empty((self.nupts, self.nvars, self.neles))
# Convert from primitive to conservative form
for i, v in enumerate(self._process_ics(ics)):
self._scal_upts[:,i,:] = v
def _eval_acc_exprs(self, intg):
exprs = []
# Get the primitive variable names
pnames = self.elementscls.privarmap[self.ndims]
# Iterate over each element type in the simulation
for idx, etype, rgn in self._ele_regions:
soln = intg.soln[idx][..., rgn].swapaxes(0, 1)
# Convert from conservative to primitive variables
psolns = self.elementscls.con_to_pri(soln, self.cfg)
# Prepare the substitutions dictionary
subs = dict(zip(pnames, psolns))
# Prepare any required gradients
if self._gradpinfo:
# Compute the gradients
grad_soln = np.rollaxis(intg.grad_soln[idx], 2)[..., rgn]
# Transform from conservative to primitive gradients
pgrads = self.elementscls.grad_con_to_pri(soln, grad_soln,
self.cfg)
# Add them to the substitutions dictionary
for pname, idx in self._gradpinfo:
for dim, grad in zip('xyz', pgrads[idx]):
subs[f'grad_{pname}_{dim}'] = grad
# Evaluate the expressions
exprs.append([npeval(v, subs) for v in self.aexprs])
# Stack up the expressions for each element type and return
return [np.dstack(exs).swapaxes(1, 2) for exs in exprs]
def set_ics_from_cfg(self):
# Bring simulation constants into scope
vars = self._cfg.items_as('constants', float)
if any(d in vars for d in 'xyz'):
raise ValueError('Invalid constants (x, y, or z) in config file')
# Construct the physical location operator matrix
plocop = self._basis.sbasis.nodal_basis_at(self._basis.upts)
# Apply the operator to the mesh elements and reshape
plocupts = np.dot(plocop, self._eles.reshape(self.nspts, -1))
plocupts = plocupts.reshape(self.nupts, self.neles, self.ndims)
# Extract the components of the mesh coordinates
coords = np.rollaxis(plocupts, 2)
vars.update(dict(zip('xyz', coords)))
# Evaluate the ICs from the config file
ics = [
npeval(self._cfg.get('soln-ics', dv), vars)
for dv in self._dynvarmap[self.ndims]
]
# Allocate
self._scal_upts = np.empty((self.nupts, self.nvars, self.neles))
# Convert from primitive to conservative form
for i, v in enumerate(self._process_ics(ics)):
self._scal_upts[:, i, :] = v
def set_ics_from_cfg(self):
# Bring simulation constants into scope
vars = self._cfg.items_as('constants', float)
if any(d in vars for d in 'xyz'):
raise ValueError('Invalid constants (x, y, or z) in config file')
# Construct the physical location operator matrix
plocop = np.asanyarray(self._basis.sbasis_at(self._basis.upts),
dtype=np.float)
# Apply the operator to the mesh elements and reshape
plocupts = np.dot(plocop, self._eles.reshape(self.nspts, -1))
plocupts = plocupts.reshape(self.nupts, self.neles, self.ndims)
# Extract the components of the mesh coordinates
coords = np.rollaxis(plocupts, 2)
vars.update(dict(zip('xyz', coords)))
# Evaluate the ICs from the config file
ics = [npeval(self._cfg.get('soln-ics', dv), vars)
for dv in self._dynvarmap[self.ndims]]
# Allow subclasses to process these ICs
ics = np.dstack(self._process_ics(ics))
# Handle the case of uniform (scalar) ICs
if ics.shape[:2] == (1, 1):
ics = ics*np.ones((self.nupts, self.neles, 1))
self._scal_upts = ics
def _eval_fun_exprs(self, intg, accex):
exprs = []
# Iterate over each element type our averaging region
for avals in accex:
# Prepare the substitution dictionary
subs = dict(zip(self.anames, avals.swapaxes(0, 1)))
exprs.append([npeval(v, subs) for v in self.fexprs])
# Stack up the expressions for each element type and return
return [np.dstack(exs).swapaxes(1, 2) for exs in exprs]
def _eval_exprs(self, intg):
intvals = np.zeros(len(self.exprs))
# Get the primitive variable names
pnames = self.elementscls.privarmap[self.ndims]
# Iterate over each element type in the simulation
for i, (soln, eleinfo) in enumerate(zip(intg.soln, self.eleinfo)):
plocs, wts, m0, eset, emask = eleinfo
# Subset and transpose the solution
soln = soln[..., eset].swapaxes(0, 1)
# Interpolate the solution to the quadrature points
if m0 is not None:
soln = m0 @ soln
# Convert from conservative to primitive variables
psolns = self.elementscls.con_to_pri(soln, self.cfg)
# Prepare the substitutions dictionary
subs = dict(zip(pnames, psolns))
subs.update(zip('xyz', plocs), t=intg.tcurr)
# Prepare any required gradients
if self._gradpinfo:
# Compute the gradients
grad_soln = np.rollaxis(intg.grad_soln[i], 2)[..., eset]
# Interpolate the gradients to the quadrature points
if m0 is not None:
grad_soln = m0 @ grad_soln
# Transform from conservative to primitive gradients
pgrads = self.elementscls.grad_con_to_pri(
soln, grad_soln, self.cfg)
# Add them to the substitutions dictionary
for pname, idx in self._gradpinfo:
for dim, grad in zip('xyz', pgrads[idx]):
subs[f'grad_{pname}_{dim}'] = grad
for j, v in enumerate(self.exprs):
# Evaluate the expression at each point
iex = wts * npeval(v, subs)
# Accumulate
intvals[j] += np.sum(iex) - np.sum(iex[emask])
return intvals
def _eval_exprs(self, intg):
intvals = np.zeros(len(self.exprs))
# Get the primitive variable names
pnames = self.elementscls.privarmap[self.ndims]
# Iterate over each element type in the simulation
for i, (soln, eleinfo) in enumerate(zip(intg.soln, self.eleinfo)):
plocs, wts, eset, emask = eleinfo
# Subset and transpose the solution
soln = soln[..., eset].swapaxes(0, 1)
# Convert from conservative to primitive variables
psolns = self.elementscls.con_to_pri(soln, self.cfg)
# Prepare the substitutions dictionary
subs = dict(zip(pnames, psolns))
subs.update(zip('xyz', plocs))
# Compute any required gradients
if self._gradpnames:
# Gradient operator and J^-T matrix
gradop, rcpjact = self._gradop[i], self._rcpjact[i]
nupts = gradop.shape[1]
for pname in self._gradpnames:
psoln = subs[pname]
# Compute the transformed gradient
tgradpn = gradop @ psoln
tgradpn = tgradpn.reshape(self.ndims, nupts, -1)
# Untransform this to get the physical gradient
gradpn = np.einsum('ijkl,jkl->ikl', rcpjact, tgradpn)
gradpn = gradpn.reshape(self.ndims, nupts, -1)
for dim, grad in zip('xyz', gradpn):
subs[f'grad_{pname}_{dim}'] = grad
for j, v in enumerate(self.exprs):
# Evaluate the expression at each point
iex = wts * npeval(v, subs)
# Accumulate
intvals[j] += np.sum(iex) - np.sum(iex[emask])
return intvals
def _eval_exprs(self, intg):
exprs = []
# Iterate over each element type in the simulation
for soln, ploc in zip(intg.soln, self.plocs):
# Get the primitive variable names and solutions
pnames = self.elementscls.privarmap[self.ndims]
psolns = self.elementscls.con_to_pri(soln.swapaxes(0, 1), self.cfg)
# Prepare the substitutions dictionary
ploc = dict(zip('xyz', ploc.swapaxes(0, 1)))
subs = dict(zip(pnames, psolns), t=intg.tcurr, **ploc)
# Evaluate the expressions
exprs.append([npeval(v, subs) for k, v in self.exprs])
# Stack up the expressions for each element type and return
return [np.dstack(exs).swapaxes(1, 2) for exs in exprs]
def _eval_exprs(self, intg):
exprs = []
# Iterate over each element type in the simulation
for soln, ploc in zip(intg.soln, self.plocs):
# Get the primitive variable names and solutions
pnames = self.elementscls.privarmap[self.ndims]
psolns = self.elementscls.con_to_pri(soln.swapaxes(0, 1),
self.cfg)
# Prepare the substitutions dictionary
ploc = dict(zip('xyz', ploc.swapaxes(0, 1)))
subs = dict(zip(pnames, psolns), t=intg.tcurr, **ploc)
# Evaluate the expressions
exprs.append([npeval(v, subs) for k, v in self.exprs])
# Stack up the expressions for each element type and return
return [np.dstack(exs).swapaxes(1, 2) for exs in exprs]
def _eval_exprs(self, intg):
exprs = []
# Get the primitive variable names
pnames = self.elementscls.privarmap[self.ndims]
# Iterate over each element type in the simulation
for i, (soln, ploc) in enumerate(zip(intg.soln, self.plocs)):
# Convert from conservative to primitive variables
psolns = self.elementscls.con_to_pri(soln.swapaxes(0, 1),
self.cfg)
# Prepare the substitutions dictionary
subs = dict(zip(pnames, psolns))
subs.update(zip('xyz', ploc.swapaxes(0, 1)))
# Compute any required gradients
if self._gradpnames:
# Gradient operator and J^-T matrix
gradop, rcpjact = self._gradop[i], self._rcpjact[i]
nupts = gradop.shape[1]
for pname in self._gradpnames:
psoln = subs[pname]
# Compute the transformed gradient
tgradpn = gradop @ psoln
tgradpn = tgradpn.reshape(self.ndims, nupts, -1)
# Untransform this to get the physical gradient
gradpn = np.einsum('ijkl,jkl->ikl', rcpjact, tgradpn)
gradpn = gradpn.reshape(self.ndims, nupts, -1)
for dim, grad in zip('xyz', gradpn):
subs['grad_{0}_{1}'.format(pname, dim)] = grad
# Evaluate the expressions
exprs.append([npeval(v, subs) for k, v in self.exprs])
# Stack up the expressions for each element type and return
return [np.dstack(exs).swapaxes(1, 2) for exs in exprs]
def set_ics_from_cfg(self):
# Bring simulation constants into scope
vars = self.cfg.items_as('constants', float)
if any(d in vars for d in 'xyz'):
raise ValueError('Invalid constants (x, y, or z) in config file')
# Get the physical location of each solution point
coords = self.ploc_at_np('upts').swapaxes(0, 1)
vars.update(dict(zip('xyz', coords)))
# Evaluate the ICs from the config file
ics = [npeval(self.cfg.get('soln-ics', dv), vars)
for dv in self.privarmap[self.ndims]]
# Allocate
self._scal_upts = np.empty((self.nupts, self.nvars, self.neles))
# Convert from primitive to conservative form
for i, v in enumerate(self.pri_to_conv(ics, self.cfg)):
self._scal_upts[:, i, :] = v
def set_ics_from_cfg(self):
# Bring simulation constants into scope
vars = self.cfg.items_as('constants', float)
if any(d in vars for d in 'xyz'):
raise ValueError('Invalid constants (x, y, or z) in config file')
# Get the physical location of each solution point
coords = self.ploc_at_np('upts').swapaxes(0, 1)
vars.update(dict(zip('xyz', coords)))
# Evaluate the ICs from the config file
ics = [npeval(self.cfg.getexpr('soln-ics', dv), vars)
for dv in self.privarmap[self.ndims]]
# Allocate
self._scal_upts = np.empty((self.nupts, self.nvars, self.neles))
# Convert from primitive to conservative form
for i, v in enumerate(self.pri_to_con(ics, self.cfg)):
self._scal_upts[:, i, :] = v
