def set_port_endogenous_values(self, pc_coeffs, germ, portid):
"""
Sample polynomial chaos expansion for endogenous values at germ
Assign those values to the nodes on the exodus mesh
"""
endo_map = self.get_endogenous_data()
with Suppressor():
e = exodus.exodus(self.outfile, mode='a')
ss_ids = e.get_side_set_ids()
ss_names = e.get_side_set_names()
dictionary = dict(zip(ss_names, ss_ids))
# Get list of nodes
ssname = self.endogenous_output_ports[portid].ssname
varname = self.endogenous_output_ports[portid].varname
side_set_node_ids = e.get_side_set_node_list(dictionary[ssname])[1]
for timestep, node_map in enumerate(endo_map):
nodal_values = e.get_node_variable_values(varname, timestep + 1)
ssid = e.get_side_set_node_list(dictionary[ssname])[1]
side_set_unique_node_ids = set(ssid)
for nid in side_set_unique_node_ids:
index = timestep * self.num_endogenous_nodes + node_map.keys(
).index(nid)
endo_val = self.evaluate_pce(pc_coeffs[index, ...], germ)
nodal_values[nid - 1] = endo_val
e.put_node_variable_values(varname, timestep + 1, nodal_values)
with Suppressor():
e.close()
def save_nodal_fields_from_structured(meshfilename, outputfilename, fieldnames,
fielddata):
if os.path.isfile(outputfilename): os.remove(outputfilename)
with Suppressor():
e = exodus.exodus(meshfilename, array_type='numpy', mode='r')
x, y, z = e.get_coords()
e.close()
ux = np.unique(x.round(decimals=6))
uy = np.unique(y.round(decimals=6))
dx = ux[1] - ux[0]
dy = uy[1] - uy[0]
i = np.rint((x - min(x)) / dx)
j = np.rint((y - min(y)) / dy)
with Suppressor():
e = exodus.copy_mesh(meshfilename, outputfilename)
e.close()
e = exodus.exodus(outputfilename, mode='a', array_type="numpy")
exodus.add_variables(e, nodal_vars=fieldnames)
for vidx, name in enumerate(fieldnames):
for ts in range(fielddata.shape[0]):
e.put_node_variable_values(
name, ts + 1, fielddata[ts, vidx,
i.astype(int),
j.astype(int)])
e.put_time(ts + 1, ts)
e.close()
def set_all_endogenous_values(self, pc_coeffs, germ):
"""
Sample polynomial chaos expansion for endogenous values at germ
Assign those values to the nodes on the exodus mesh
"""
endo_map = self.get_endogenous_data()
with Suppressor():
e = exodus.exodus(self.outfile, mode='a')
ss_ids = e.get_side_set_ids()
ss_names = e.get_side_set_names()
dictionary = dict(zip(ss_names, ss_ids))
index = 0
for timestep in range(self.num_timesteps):
for portid, port in enumerate(self.endogenous_output_ports):
node_map = endo_map[timestep *
len(self.endogenous_output_ports) + portid]
nodal_values = e.get_node_variable_values(
port.varname, timestep + 1)
ssid = e.get_side_set_node_list(dictionary[port.ssname])[1]
side_set_unique_node_ids = set(ssid)
for nid in side_set_unique_node_ids:
idx = index + node_map.keys().index(nid)
endo_val = self.evaluate_pce(pc_coeffs[idx, ...], germ)
nodal_values[nid - 1] = endo_val
index += len(side_set_unique_node_ids)
e.put_node_variable_values(port.varname, timestep + 1,
nodal_values)
with Suppressor():
e.close()
def get_QoI_data(self):
with Suppressor():
e = exodus.exodus(self.outfile, mode='r')
QoI_vals = {}
for QoI in self.QoIs:
QoI_vals[QoI] = e.get_global_variable_values(QoI)
with Suppressor():
e.close()
return QoI_vals
def set_times(filename, times):
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='a')
assert len(times) == e.num_times()
for i, t in enumerate(times):
e.put_time(i + 1, t)
with Suppressor():
e.close()
def get_coords(filename):
"""
Returns the spatial coordinates of nodes in all blocks
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
x, y, z = e.get_coords()
e.close()
return x, y, z
def isin_sideset(filename, ssname):
with Suppressor():
e = exodus.exodus(filename, mode='r')
ss_ids = e.get_side_set_ids()
ss_names = e.get_side_set_names()
dictionary = dict(zip(ss_names, ss_ids))
vals = np.zeros(e.num_nodes())
ssid = e.get_side_set_node_list(dictionary[ssname])[1]
side_set_unique_node_ids = set(ssid)
for nid in side_set_unique_node_ids:
vals[nid - 1] = 1
with Suppressor():
e.close()
return vals
def get_num_nodes(filename):
"""
Returns the total number of nodes in all blocks
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
n = e.num_nodes()
e.close()
return n
def get_nodal_variable_names(filename):
"""
Returns list of nodal variables present in exodus file
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
names = e.get_node_variable_names()
e.close()
return names
def get_times(filename):
"""
Returns list of times corresponding to time planes in the exodus file
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
t = e.get_times()
e.close()
return t
def get_nodal_variable_values(filename, varname, step=1):
"""
Extracts nodal field data from exodus file and returns a numpy array of nodal values
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
vals = e.get_node_variable_values(varname, step)
e.close()
return vals
def get_num_globals(filename):
"""
Returns number of global variables in the exodus file
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
n = e.get_global_variable_number()
e.close()
return n
def get_node_id_map(filename):
"""
Returns mapping between node index and node id from exodus file
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
nid = e.get_node_id_map()
e.close()
return nid
def get_combined_timeline(filenames):
times = []
for filename in filenames:
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
times.append(e.get_times())
e.close()
times = [item for sublist in times for item in sublist]
return sorted(set(times))
def add_QoI(self, varname):
"""
Specify global variables from exodus output to be treated at QoIs
"""
with Suppressor():
e = exodus.exodus(self.outfile, mode='r')
gnames = e.get_global_variable_names()
e.close()
assert varname in gnames, "%s not a global variable in %s." % (
varname, self.outfile)
self.QoIs.append(varname)
def get_solution_times(self):
if self.output_times:
print("using self.output_times")
times = self.output_times
else:
print("no output times found, reading from exodus")
with Suppressor():
e = exodus.exodus(self.outfile, mode='r')
times = e.get_times()
e.close()
return times
def save_nodal_fields(meshfilename, outputfilename, fieldnames, fielddata):
if os.path.isfile(outputfilename): os.remove(outputfilename)
with Suppressor():
e = exodus.copy_mesh(meshfilename, outputfilename)
e.close()
e = exodus.exodus(outputfilename, mode='a', array_type="numpy")
exodus.add_variables(e, nodal_vars=fieldnames)
for i, name in enumerate(fieldnames):
e.put_node_variable_values(name, 1, fielddata[i])
e.close()
def add_endogenous_port(self, ssname, varname):
"""
Add an endogenous port between two aria_component instances
Port is specified on the *sending* component
"""
with Suppressor():
e = exodus.exodus(self.outfile, mode='r')
ssnames = e.get_side_set_names()
e.close()
assert ssname in ssnames, "%s not a sideset in %s." % (ssname,
self.outfile)
my_port = endogenous_port(ssname, varname)
self.endogenous_output_ports.append(my_port)
def add_global_variable(filename, name, vals):
"""
Adds global variable and fills with values
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='a')
num_gvars = e.get_global_variable_number()
e.set_global_variable_number(num_gvars + 1)
e.put_global_variable_name(name, num_gvars + 1)
for i, val in enumerate(vals):
e.put_global_variable_value(name, i + 1, val)
e.close()
def get_endogenous_data(self):
"""
Retreive my output data at endogenous nodes
"""
if self.output_times:
sync_times.interpolate_to_timeline(self.outfile,
self.outfile + ".tmp",
self.output_times)
os.rename(self.outfile + ".tmp", self.outfile)
with Suppressor():
e = exodus.exodus(self.outfile, mode='r')
ss_ids = e.get_side_set_ids()
ss_names = e.get_side_set_names()
dictionary = dict(zip(ss_names, ss_ids))
# Get list of time steps for which to provide data
times = e.get_times()
self.num_timesteps = len(times)
vals = []
for timestep in range(self.num_timesteps):
self.num_endogenous_nodes = 0
for port in self.endogenous_output_ports:
endogenous_vals = {}
ssid = e.get_side_set_node_list(dictionary[port.ssname])[1]
nodal_values = e.get_node_variable_values(
port.varname, timestep + 1)
side_set_unique_node_ids = set(ssid)
for nid in side_set_unique_node_ids:
endogenous_vals[nid] = nodal_values[nid - 1]
vals.append(endogenous_vals)
self.num_endogenous_nodes += len(endogenous_vals)
with Suppressor():
e.close()
return vals
def save_nodal_fields_transient(meshfilename, outputfilename, fieldnames,
fielddata):
# assert len(fieldnames) == fielddata.shape[1]
# assert get_num_nodes(meshfilename) == fielddata.shape[2]
if os.path.isfile(outputfilename): os.remove(outputfilename)
with Suppressor():
e = exodus.copy_mesh(meshfilename, outputfilename)
e.close()
e = exodus.exodus(outputfilename, mode='a', array_type="numpy")
exodus.add_variables(e, nodal_vars=fieldnames)
for i, name in enumerate(fieldnames):
for ts in range(fielddata.shape[0]):
e.put_node_variable_values(name, ts + 1, fielddata[ts, i, :])
e.put_time(ts + 1, ts)
e.close()
def get_all_global_variable_values(filename):
"""
Returns global variable values for all times
"""
with Suppressor():
e = exodus.exodus(filename, array_type='numpy', mode='r')
if e.get_global_variable_number() > 0:
global_data = np.zeros(
(e.num_times(), e.get_global_variable_number()))
for timestep in range(e.num_times()):
global_data[timestep, :] = e.get_all_global_variable_values(
timestep + 1)
return global_data
else:
return None
def append_exodus(filenamelist,
outputfilename="joined-output.e",
skip_first=0,
skip_last=0):
if os.path.isfile(outputfilename): os.remove(outputfilename)
with Suppressor():
# Copy Mesh
e = exodus.copy_mesh(filenamelist[0], outputfilename)
e.close()
e = exodus.exodus(outputfilename, mode='a', array_type="numpy")
# Add Variable Names
var_names = []
gvar_names = []
for f in filenamelist:
exo = exodus.exodus(f, mode='r', array_type="numpy")
var_names.extend(exo.get_node_variable_names())
gvar_names.extend(exo.get_global_variable_names())
exo.close()
var_names = list(set(var_names))
gvar_names = list(set(gvar_names))
exodus.add_variables(e, nodal_vars=var_names)
e.set_global_variable_number(len(gvar_names))
for i, gvar in enumerate(gvar_names):
e.put_global_variable_name(gvar, i + 1)
# Add Variable Data
ts = 1
for f in filenamelist:
exo = exodus.exodus(f, mode='r', array_type="numpy")
for step in range(skip_first, exo.num_times() - skip_last):
for var in exo.get_node_variable_names():
e.put_node_variable_values(
var, ts, exo.get_node_variable_values(var, step + 1))
if len(gvar_names) > 0:
gvar_vals = []
for gvar in exo.get_global_variable_names():
gvar_vals.append(
exo.get_global_variable_values(gvar)[step])
e.put_all_global_variable_values(ts, gvar_vals)
e.put_time(ts, ts - 1)
ts += 1
exo.close()
e.close()
def get_all_data(self, varname, filename=None):
"""
Retreive my output data at all nodes
"""
if filename == None:
filename = self.outfile
with Suppressor():
e = exodus.exodus(filename, mode='r')
# Get list of time steps for which to provide data
times = e.get_times()
self.num_timesteps = len(times)
vals = []
for timestep in range(self.num_timesteps):
nodal_values = e.get_node_variable_values(
varname, timestep + 1)
vals.append(nodal_values)
e.close()
return vals
def interpolate_to_timeline(input_filename, output_filename, output_times):
with Suppressor():
e = exodus.copy_mesh(input_filename, output_filename)
e.close()
exo_in = exodus.exodus(input_filename, mode='r', array_type="numpy")
exo_out = exodus.exodus(output_filename, mode='a', array_type="numpy")
input_times = exo_in.get_times()
#if list(input_times) == output_times:
# print("skip")
# return
#print("interpolating %d input times to %d output times..." % (len(input_times), len(output_times)))
node_varnames = exo_in.get_node_variable_names()
global_varnames = exo_in.get_global_variable_names()
exodus.add_variables(exo_out,
nodal_vars=node_varnames,
global_vars=global_varnames)
for step, time in enumerate(output_times):
idx = np.searchsorted(input_times, time)
if idx == 0:
left_idx = idx
else:
left_idx = idx - 1
if idx == len(input_times):
right_idx = idx - 1
else:
right_idx = idx
for varname in node_varnames:
left_data = exo_in.get_node_variable_values(varname, left_idx + 1)
if left_idx == right_idx:
exo_out.put_node_variable_values(varname, step + 1, left_data)
else:
right_data = exo_in.get_node_variable_values(
varname, right_idx + 1)
alpha = (time - input_times[left_idx]) / (
input_times[right_idx] - input_times[left_idx])
interp_data = left_data + alpha * (right_data - left_data)
exo_out.put_node_variable_values(varname, step + 1,
interp_data)
for varname in global_varnames:
left_data = exo_in.get_global_variable_value(varname, left_idx + 1)
if left_idx == right_idx:
exo_out.put_global_variable_value(varname, step + 1, left_data)
else:
right_data = exo_in.get_global_variable_value(
varname, right_idx + 1)
alpha = (time - input_times[left_idx]) / (
input_times[right_idx] - input_times[left_idx])
interp_data = left_data + alpha * (right_data - left_data)
exo_out.put_global_variable_value(varname, step + 1,
interp_data)
exo_out.put_time(step + 1, time)
with Suppressor():
exo_in.close()
exo_out.close()
def append_exodus_ss(filenamelist,
outputfilename="joined-output.e",
labels=None):
if os.path.isfile(outputfilename): os.remove(outputfilename)
with Suppressor():
# Copy Mesh
e = exodus.copy_mesh(filenamelist[0], outputfilename)
e.close()
e = exodus.exodus(outputfilename, mode='a', array_type="numpy")
# Add Variable Names
nvar_names = []
gvar_names = []
evar_names = []
for f in filenamelist:
exo = exodus.exodus(f, mode='r', array_type="numpy")
nvar_names.extend(exo.get_node_variable_names())
gvar_names.extend(exo.get_global_variable_names())
evar_names.extend(exo.get_element_variable_names())
exo.close()
if labels:
gvar_names.extend(labels.keys())
nvar_names = list(set(nvar_names))
gvar_names = list(set(gvar_names))
evar_names = list(set(evar_names))
exodus.add_variables(e, nodal_vars=nvar_names, element_vars=evar_names)
e.set_global_variable_number(len(gvar_names))
for i, gvar in enumerate(gvar_names):
e.put_global_variable_name(gvar, i + 1)
gvar_vals = {}
for gvar in gvar_names:
gvar_vals[gvar] = []
ts = 1
for f in filenamelist:
exo = exodus.exodus(f, mode='r', array_type="numpy")
step = exo.num_times()
e.put_time(ts, ts)
for var in exo.get_node_variable_names():
e.put_node_variable_values(
var, ts, exo.get_node_variable_values(var, step))
for evar in exo.get_element_variable_names():
# TODO: only works for 1 block
e.put_element_variable_values(
1, evar, ts,
exo.get_element_variable_values(1, evar, step))
for gvar in exo.get_global_variable_names():
val = exo.get_global_variable_value(gvar, step)
gvar_vals[gvar].append(val)
if labels:
for key in labels:
val = labels[key][ts - 1]
gvar_vals[key].append(val)
ts += 1
exo.close()
for ts in range(1, e.num_times() + 1):
vals = []
for gvar in e.get_global_variable_names():
vals.append(gvar_vals[gvar][ts - 1])
e.put_all_global_variable_values(ts, vals)
e.close()
