from __future__ import absolute_import
from os.path import splitext
import logging
from dune.perftool.options import (get_form_option,
get_option,
option_switch)
from dune.perftool.generation import (backend,
base_class,
class_basename,
class_member,
constructor_parameter,
domain,
dump_accumulate_timer,
end_of_file,
function_mangler,
generator_factory,
get_backend,
get_global_context_value,
global_context,
iname,
include_file,
initializer_list,
post_include,
retrieve_cache_functions,
retrieve_cache_items,
template_parameter,
)
from dune.perftool.cgen.clazz import (AccessModifier,
BaseClass,
ClassMember,
)
from dune.perftool.ufl.modified_terminals import Restriction
import dune.perftool.loopy.mangler
from pymbolic.primitives import Variable
import pymbolic.primitives as prim
from pytools import Record, ImmutableRecord
import ufl.classes as uc
import loopy as lp
import cgen
@template_parameter(classtag="operator")
def lop_template_ansatz_gfs():
name = "GFSU"
constructor_parameter("const {}&".format(name), name_ansatz_gfs_constructor_param(), classtag="operator")
return name
def name_ansatz_gfs_constructor_param():
return "gfsu"
@template_parameter(classtag="operator")
def lop_template_test_gfs():
name = "GFSV"
constructor_parameter("const {}&".format(name), name_test_gfs_constructor_param(), classtag="operator")
return name
def name_test_gfs_constructor_param():
return "gfsv"
@template_parameter(classtag="operator")
def lop_template_range_field():
return "RF"
@class_member(classtag="operator")
def lop_domain_field(name):
# TODO: Rethink for not Galerkin Method
gfs = lop_template_ansatz_gfs()
return "using {} = typename {}::Traits::GridView::ctype;".format(name, gfs)
def name_domain_field():
name = "DF"
lop_domain_field(name)
return name
def lop_template_gfs(ma):
from ufl.classes import Argument, Coefficient
if isinstance(ma.argexpr, Argument):
if ma.argexpr.number() == 0:
return lop_template_test_gfs()
if ma.argexpr.number() == 1:
return lop_template_ansatz_gfs()
if isinstance(ma.argexpr, Coefficient):
# Index 0 is reserved for trialfunction, index 1 is reserved for jacobian apply function
assert ma.argexpr.count() < 2
return lop_template_ansatz_gfs()
assert False
def name_initree_constructor_param():
return "iniParams"
@class_member(classtag="operator")
def define_initree(name):
param_name = name_initree_constructor_param()
include_file('dune/common/parametertree.hh', filetag="operatorfile")
constructor_parameter("const Dune::ParameterTree&", param_name, classtag="operator")
initializer_list(name, [param_name], classtag="operator")
return "const Dune::ParameterTree& {};".format(name)
@class_member(classtag="operator")
def _enum_pattern(which):
return "enum {{ doPattern{} = true }};".format(which)
def enum_pattern():
from dune.perftool.generation import get_global_context_value
integral_type = get_global_context_value("integral_type")
from dune.perftool.pdelab.signatures import ufl_measure_to_pdelab_measure
return _enum_pattern(ufl_measure_to_pdelab_measure(integral_type))
def _pattern_baseclass(measure):
return base_class('Dune::PDELab::Full{}Pattern'.format(measure), classtag="operator")
def pattern_baseclass():
from dune.perftool.generation import get_global_context_value
integral_type = get_global_context_value("integral_type")
from dune.perftool.pdelab.signatures import ufl_measure_to_pdelab_measure
return _pattern_baseclass(ufl_measure_to_pdelab_measure(integral_type))
@class_member(classtag="operator")
def _enum_alpha(which):
return "enum {{ doAlpha{} = true }};".format(which)
def enum_alpha():
from dune.perftool.generation import get_global_context_value
integral_type = get_global_context_value("integral_type")
from dune.perftool.pdelab.signatures import ufl_measure_to_pdelab_measure
return _enum_alpha(ufl_measure_to_pdelab_measure(integral_type))
def name_initree_member():
define_initree("_iniParams")
return "_iniParams"
@class_basename(classtag="operator")
def localoperator_basename(form_ident):
return get_form_option("classname", form_ident)
def class_type_from_cache(classtag):
from dune.perftool.generation import retrieve_cache_items
# get the basename
basename = [i for i in retrieve_cache_items(condition="{} and basename".format(classtag))]
assert len(basename) == 1
basename = basename[0]
# get the template parameters
tparams = [i for i in retrieve_cache_items(condition="{} and template_param".format(classtag))]
tparam_str = ''
if len(tparams) > 0:
tparam_str = '<{}>'.format(', '.join(t for t in tparams))
return basename, basename + tparam_str
class AccumulationSpace(Record):
def __init__(self,
lfs=None,
index=None,
restriction=None,
element=None,
):
Record.__init__(self,
lfs=lfs,
index=index,
restriction=restriction,
element=element,
)
def get_args(self):
if self.lfs is None:
return ()
else:
return (self.lfs, self.index)
def get_restriction(self):
if self.restriction is None:
return ()
else:
return (self.restriction,)
# TODO maybe move this onto the visitor as a helper function?
def determine_accumulation_space(info, number):
if info is None:
return AccumulationSpace()
assert info is not None
element = info.element
subel = element
from ufl import MixedElement
if isinstance(element, MixedElement):
subel = element.extract_component(info.element_index)[1]
# And generate a local function space for it!
from dune.perftool.pdelab.spaces import name_lfs, name_lfs_bound, lfs_iname
lfs = name_lfs(element, info.restriction, info.element_index)
from dune.perftool.generation import valuearg
from loopy.types import NumpyType
valuearg(lfs, dtype=NumpyType("str"))
if get_form_option("blockstructured"):
from dune.perftool.blockstructured.tools import micro_index_to_macro_index
from dune.perftool.blockstructured.spaces import lfs_inames
lfsi = micro_index_to_macro_index(subel, lfs_inames(subel, info.restriction, count=number)[0])
else:
from dune.perftool.pdelab.spaces import lfs_inames
lfsi = Variable(lfs_iname(subel, info.restriction, count=number))
# If the LFS is not yet a pymbolic expression, make it one
from pymbolic.primitives import Expression
if not isinstance(lfs, Expression):
lfs = Variable(lfs)
return AccumulationSpace(lfs=lfs,
index=lfsi,
restriction=info.restriction,
)
def boundary_predicates(expr, measure, subdomain_id):
predicates = frozenset([])
if subdomain_id not in ['everywhere', 'otherwise']:
# We need to reconstruct the subdomain_data parameter of the measure
# I am *totally* confused as to why this information is not at hand anyway,
# but conversation with Martin pointed me to dolfin.fem.assembly where this
# is done in preprocessing with the limitation of only one possible type of
# modified measure per integral type.
# Get the original form and inspect the present measures
from dune.perftool.generation import get_global_context_value
data = get_global_context_value("data")
original_form = data.object_by_name[get_form_option("form")]
sd = original_form.subdomain_data()
assert len(sd) == 1
subdomains, = list(sd.values())
domain, = list(sd.keys())
for k in list(subdomains.keys()):
if subdomains[k] is None:
del subdomains[k]
# Finally extract the original subdomain_data (which needs to be present!)
assert measure in subdomains
subdomain_data = subdomains[measure]
from ufl.classes import Expr
if isinstance(subdomain_data, Expr):
visitor = get_visitor(measure, subdomain_id)
cond = visitor(subdomain_data, do_predicates=True)
else:
raise NotImplementedError("Only UFL expressions allowed in subdomain_data right now.")
predicates = predicates.union([prim.Comparison(cond, '==', subdomain_id)])
return predicates
class PDELabAccumulationInfo(ImmutableRecord):
def __init__(self,
element=None,
element_index=0,
restriction=None,
inames=(),
):
ImmutableRecord.__init__(self,
element=element,
element_index=element_index,
restriction=restriction,
inames=inames,
)
def __eq__(self, other):
return type(self) == type(other) and self.element_index == other.element_index and self.restriction == other.restriction
def __hash__(self):
return (self.element_index, self.restriction)
def _list_infos(expr, number, visitor):
from dune.perftool.ufl.modified_terminals import extract_modified_arguments
ma = extract_modified_arguments(expr, argnumber=number)
if len(ma) == 0:
if number == 1:
yield None
return
element = ma[0].argexpr.ufl_element()
from dune.perftool.ufl.modified_terminals import Restriction
if visitor.measure == "cell":
restrictions = (Restriction.NONE,)
elif visitor.measure == "exterior_facet":
restrictions = (Restriction.NEGATIVE,)
elif visitor.measure == "interior_facet":
restrictions = (Restriction.NEGATIVE, Restriction.POSITIVE)
for res in restrictions:
for ei in range(element.value_size()):
yield PDELabAccumulationInfo(element_index=ei, restriction=res)
def list_accumulation_infos(expr, visitor):
testgen = _list_infos(expr, 0, visitor)
trialgen = _list_infos(expr, 1, visitor)
import itertools
return itertools.product(testgen, trialgen)
def get_accumulation_info(expr, visitor):
element = expr.ufl_element()
leaf_element = element
element_index = 0
from ufl import MixedElement
if isinstance(expr.ufl_element(), MixedElement):
element_index = visitor.indices[0]
leaf_element = element.extract_component(element_index)[1]
restriction = visitor.restriction
if visitor.measure == 'exterior_facet':
from dune.perftool.pdelab.restriction import Restriction
restriction = Restriction.NEGATIVE
inames = visitor.interface.lfs_inames(leaf_element,
restriction,
expr.number()
)
return PDELabAccumulationInfo(element=expr.ufl_element(),
element_index=element_index,
restriction=restriction,
inames=inames,
)
def generate_accumulation_instruction(expr, visitor):
# Collect the lfs and lfs indices for the accumulate call
test_lfs = determine_accumulation_space(visitor.test_info, 0)
# In the jacobian case, also determine the space for the ansatz space
ansatz_lfs = determine_accumulation_space(visitor.trial_info, 1)
# Collect the lfs and lfs indices for the accumulate call
from dune.perftool.pdelab.argument import name_accumulation_variable
accumvar = name_accumulation_variable(test_lfs.get_restriction() + ansatz_lfs.get_restriction())
predicates = boundary_predicates(expr, visitor.measure, visitor.subdomain_id)
rank = 1 if ansatz_lfs.lfs is None else 2
from dune.perftool.pdelab.argument import PDELabAccumulationFunction
from pymbolic.primitives import Call
accexpr = Call(PDELabAccumulationFunction(accumvar, rank),
(test_lfs.get_args() + ansatz_lfs.get_args() + (expr,))
)
from dune.perftool.generation import instruction
from dune.perftool.options import option_switch
quad_inames = visitor.interface.quadrature_inames()
lfs_inames = frozenset(visitor.test_info.inames)
if visitor.trial_info:
lfs_inames = lfs_inames.union(visitor.trial_info.inames)
instruction(assignees=(),
expression=accexpr,
forced_iname_deps=lfs_inames.union(frozenset(quad_inames)),
forced_iname_deps_is_final=True,
predicates=predicates
)
def get_visitor(measure, subdomain_id):
# Get a transformer instance for this kernel
if get_form_option('sumfact'):
from dune.perftool.sumfact import SumFactInterface
interface = SumFactInterface()
elif get_form_option('blockstructured'):
from dune.perftool.blockstructured import BlockStructuredInterface
interface = BlockStructuredInterface()
else:
from dune.perftool.pdelab import PDELabInterface
interface = PDELabInterface()
from dune.perftool.ufl.visitor import UFL2LoopyVisitor
return UFL2LoopyVisitor(interface, measure, subdomain_id)
def visit_integral(integral):
integrand = integral.integrand()
measure = integral.integral_type()
subdomain_id = integral.subdomain_id()
# Start the visiting process!
visitor = get_visitor(measure, subdomain_id)
visitor.accumulate(integrand)
def generate_kernel(integrals):
logger = logging.getLogger(__name__)
# Visit all integrals once to collect information (dry-run)!
logger.debug('generate_kernel: visit_integrals (dry run)')
with global_context(dry_run=True):
for integral in integrals:
visit_integral(integral)
# Now perform some checks on what should be done
from dune.perftool.sumfact.vectorization import decide_vectorization_strategy
logger.debug('generate_kernel: decide_vectorization_strategy')
decide_vectorization_strategy()
# Delete the cache contents and do the real thing!
logger.debug('generate_kernel: visit_integrals (no dry run)')
from dune.perftool.generation import delete_cache_items
delete_cache_items("kernel_default")
for integral in integrals:
visit_integral(integral)
knl = extract_kernel_from_cache("kernel_default")
delete_cache_items("kernel_default")
# Reset the quadrature degree
from dune.perftool.sumfact.tabulation import set_quadrature_points
set_quadrature_points(None)
# Clean the cache from any data collected after the dry run
delete_cache_items("dryrundata")
return knl
@backend(interface="generate_kernels_per_integral")
def generate_kernels_per_integral(integrals):
yield generate_kernel(integrals)
def extract_kernel_from_cache(tag, wrap_in_cgen=True):
# Now extract regular loopy kernel components
from dune.perftool.loopy.target import DuneTarget
domains = [i for i in retrieve_cache_items("{} and domain".format(tag))]
if not domains:
domains = ["{[stupid] : 0<=stupid<1}"]
instructions = [i for i in retrieve_cache_items("{} and instruction".format(tag))]
substrules = [i for i in retrieve_cache_items("{} and substrule".format(tag)) if i is not None]
temporaries = {i.name: i for i in retrieve_cache_items("{} and temporary".format(tag))}
arguments = [i for i in retrieve_cache_items("{} and argument".format(tag))]
silenced = [l for l in retrieve_cache_items("{} and silenced_warning".format(tag))]
transformations = [t for t in retrieve_cache_items("{} and transformation".format(tag))]
# Construct an options object
from loopy import Options
opt = Options(ignore_boostable_into=True,
check_dep_resolution=False,
)
# Find a name for the kernel
if wrap_in_cgen:
from dune.perftool.pdelab.signatures import kernel_name
name = kernel_name()
else:
name = "constructor_kernel"
# Create the kernel
from loopy import make_kernel, preprocess_kernel
kernel = make_kernel(domains,
instructions + substrules,
arguments,
temporary_variables=temporaries,
target=DuneTarget(),
options=opt,
silenced_warnings=silenced,
name=name,
)
from loopy import make_reduction_inames_unique
kernel = make_reduction_inames_unique(kernel)
from dune.perftool.loopy.transformations.disjointgroups import make_groups_conflicting
kernel = make_groups_conflicting(kernel)
# Apply the transformations that were gathered during tree traversals
for trafo in transformations:
kernel = trafo[0](kernel, *trafo[1])
# Precompute all the substrules
for sr in kernel.substitutions:
tmpname = "precompute_{}".format(sr)
kernel = lp.precompute(kernel,
sr,
temporary_name=tmpname,
)
# Vectorization strategies are actually very likely to eliminate the
# precomputation temporary. To avoid the temporary elimination warning
# we need to explicitly disable it.
kernel = kernel.copy(silenced_warnings=kernel.silenced_warnings + ["temp_to_write({})".format(tmpname)])
from dune.perftool.loopy import heuristic_duplication
kernel = heuristic_duplication(kernel)
# Maybe apply vectorization strategies
if get_form_option("vectorization_quadloop"):
if get_form_option("sumfact"):
from dune.perftool.loopy.transformations.vectorize_quad import vectorize_quadrature_loop
kernel = vectorize_quadrature_loop(kernel)
else:
raise NotImplementedError("Only vectorizing sumfactorized code right now!")
# Now add the preambles to the kernel
preambles = [(i, p) for i, p in enumerate(retrieve_cache_items("{} and preamble".format(tag)))]
kernel = kernel.copy(preambles=preambles)
# Remove inames that have become obsolete
kernel = lp.remove_unused_inames(kernel)
# Do the loopy preprocessing!
kernel = preprocess_kernel(kernel)
# *REALLY* ignore boostability. This is - so far - necessary due to a mystery bug.
kernel = kernel.copy(instructions=[i.copy(boostable=False, boostable_into=frozenset()) for i in kernel.instructions])
from dune.perftool.loopy.transformations.matchfma import match_fused_multiply_add
kernel = match_fused_multiply_add(kernel)
if wrap_in_cgen:
# Wrap the kernel in something which can generate code
from dune.perftool.pdelab.signatures import assembly_routine_signature
signature = assembly_routine_signature()
kernel = LoopyKernelMethod(signature, kernel)
return kernel
def name_time_dumper_os():
return "os"
def name_time_dumper_reset():
return "reset"
def name_time_dumper_ident():
return "ident"
@generator_factory(item_tags=("cached",), cache_key_generator=lambda **kw: None)
def name_example_kernel(name=None):
return name
class TimerMethod(ClassMember):
def __init__(self):
os = name_time_dumper_os()
reset = name_time_dumper_reset()
ident = name_time_dumper_ident()
knl = name_example_kernel()
assert(knl is not None)
content = ["template <typename Stream>",
"void dump_timers(Stream& {}, std::string {}, bool {})".format(os, ident, reset),
"{"]
dump_timers = [i for i in retrieve_cache_items(condition='dump_timers')]
content.extend(map(lambda x: ' ' + x, dump_timers))
content.append("}")
ClassMember.__init__(self, content)
class LoopyKernelMethod(ClassMember):
def __init__(self, signature, kernel, add_timings=True, initializer_list=[]):
from loopy import generate_body
from cgen import LiteralLines, Block
content = signature
# Add initializer list if this is a constructor
if initializer_list:
content[-1] = content[-1] + " :"
for init in initializer_list[:-1]:
content.append(" " * 4 + init + ",")
content.append(" " * 4 + initializer_list[-1])
content.append('{')
if kernel is not None:
# Start timer
if add_timings and get_option('instrumentation_level') >= 3:
from dune.perftool.pdelab.signatures import assembler_routine_name
timer_name = assembler_routine_name() + '_kernel'
name_example_kernel(name=timer_name)
post_include('HP_DECLARE_TIMER({});'.format(timer_name), filetag='operatorfile')
content.append(' ' + 'HP_TIMER_START({});'.format(timer_name))
dump_accumulate_timer(timer_name)
if add_timings and get_option("instrumentation_level") >= 4:
setuptimer = '{}_kernel_setup'.format(assembler_routine_name())
post_include('HP_DECLARE_TIMER({});'.format(setuptimer), filetag='operatorfile')
content.append(' HP_TIMER_START({});'.format(setuptimer))
dump_accumulate_timer(setuptimer)
# Add kernel preamble
for i, p in kernel.preambles:
content.append(' ' + p)
# Add kernel body
content.extend(l for l in generate_body(kernel).split('\n')[1:-1])
# Stop timer
if add_timings and get_option('instrumentation_level') >= 3:
content.append(' ' + 'HP_TIMER_STOP({});'.format(timer_name))
content.append('}')
ClassMember.__init__(self, content)
def cgen_class_from_cache(tag, members=[]):
from dune.perftool.generation import retrieve_cache_items
# Generate the name by concatenating basename and template parameters
basename, fullname = class_type_from_cache(tag)
base_classes = [bc for bc in retrieve_cache_items('{} and baseclass'.format(tag))]
constructor_params = [bc for bc in retrieve_cache_items('{} and constructor_param'.format(tag))]
il = [i for i in retrieve_cache_items('{} and initializer'.format(tag))]
pm = [m for m in retrieve_cache_items('{} and member'.format(tag))]
tparams = [i for i in retrieve_cache_items('{} and template_param'.format(tag))]
# Construct the constructor
constructor_knl = extract_kernel_from_cache(tag, wrap_in_cgen=False)
from dune.perftool.loopy.target import DuneTarget
constructor_knl = constructor_knl.copy(target=DuneTarget(declare_temporaries=False))
signature = "{}({})".format(basename, ", ".join(next(iter(p.generate(with_semicolon=False))) for p in constructor_params))
constructor = LoopyKernelMethod([signature], constructor_knl, add_timings=False, initializer_list=il)
# Take any temporary declarations from the kernel and make them class members
target = DuneTarget()
from loopy.codegen import CodeGenerationState
codegen_state = CodeGenerationState(kernel=constructor_knl,
implemented_data_info=None,
implemented_domain=None,
implemented_predicates=frozenset(),
seen_dtypes=frozenset(),
seen_functions=frozenset(),
seen_atomic_dtypes=frozenset(),
var_subst_map={},
allow_complex=False,
is_generating_device_code=True,
)
decls = [cgen.Line("\n " + next(iter(d.generate()))) for d in target.get_device_ast_builder().get_temporary_decls(codegen_state, 0)]
from dune.perftool.cgen import Class
return Class(basename, base_classes=base_classes, members=[constructor] + members + pm + decls, tparam_decls=tparams)
def generate_localoperator_kernels(operator):
logger = logging.getLogger(__name__)
data = get_global_context_value("data")
original_form = data.object_by_name[get_form_option("form")]
from dune.perftool.ufl.preprocess import preprocess_form
form = preprocess_form(original_form).preprocessed_form
# Reset the generation cache
from dune.perftool.generation import delete_cache_items
delete_cache_items()
# Manage includes and base classes that we always need
include_file('dune/pdelab/gridfunctionspace/gridfunctionspace.hh', filetag="operatorfile")
include_file('dune/pdelab/localoperator/idefault.hh', filetag="operatorfile")
include_file('dune/pdelab/localoperator/flags.hh', filetag="operatorfile")
include_file('dune/pdelab/localoperator/pattern.hh', filetag="operatorfile")
post_include("#pragma GCC diagnostic push", filetag="operatorfile")
post_include("#pragma GCC diagnostic ignored \"-Wsign-compare\"", filetag="operatorfile")
post_include("#pragma GCC diagnostic ignored \"-Wunused-variable\"", filetag="operatorfile")
post_include("#pragma GCC diagnostic ignored \"-Wunused-but-set-variable\"", filetag="operatorfile")
end_of_file("#pragma GCC diagnostic pop", filetag="operatorfile")
# Trigger this one once early on to assure that template
# parameters are set in the right order
localoperator_basename(operator)
lop_template_ansatz_gfs()
lop_template_test_gfs()
lop_template_range_field()
# Make sure there is always the same constructor arguments (even if parameter class is empty)
from dune.perftool.pdelab.localoperator import name_initree_member
name_initree_member()
# Set some options!
from dune.perftool.pdelab.driver import isQuadrilateral
if isQuadrilateral(form.coefficients()[0].ufl_element().cell()):
from dune.perftool.options import set_form_option
# For Yasp Grids the jacobian of the transformation is diagonal and constant on each cell
set_form_option('diagonal_transformation_matrix', True)
set_form_option('constant_transformation_matrix', True)
# Add right base classes for stationary/instationary operators
base_class('Dune::PDELab::LocalOperatorDefaultFlags', classtag="operator")
from dune.perftool.pdelab.driver import is_stationary
if not is_stationary():
rf = lop_template_range_field()
base_class('Dune::PDELab::InstationaryLocalOperatorDefaultMethods<{}>'
.format(rf), classtag="operator")
# Have a data structure collect the generated kernels
operator_kernels = {}
logger.info("generate_localoperator_kernels: create residual methods")
with global_context(form_type='residual'):
# Generate the necessary residual methods
for measure in set(i.integral_type() for i in form.integrals()):
logger.info("generate_localoperator_kernels: measure {}".format(measure))
with global_context(integral_type=measure):
enum_pattern()
pattern_baseclass()
enum_alpha()
from dune.perftool.pdelab.signatures import assembler_routine_name
with global_context(kernel=assembler_routine_name()):
kernel = [k for k in get_backend(interface="generate_kernels_per_integral")(form.integrals_by_type(measure))]
# Maybe add numerical differentiation
if get_form_option("numerical_jacobian"):
# Include headers for numerical methods
include_file("dune/pdelab/localoperator/defaultimp.hh", filetag="operatorfile")
# Numerical jacobian base class
_, loptype = class_type_from_cache("operator")
from dune.perftool.pdelab.signatures import ufl_measure_to_pdelab_measure
which = ufl_measure_to_pdelab_measure(measure)
base_class("Dune::PDELab::NumericalJacobian{}<{}>".format(which, loptype), classtag="operator")
# Numerical jacobian initializer list
ini = name_initree_member()
ini_constructor = name_initree_constructor_param()
initializer_list("Dune::PDELab::NumericalJacobian{}<{}>".format(which, loptype),
["{}.get<double>(\"numerical_epsilon.{}\", 1e-9)".format(ini_constructor, ini, which.lower())],
classtag="operator",
)
# In the case of matrix free operator evaluation we need jacobian apply methods
if get_form_option("matrix_free"):
from dune.perftool.pdelab.driver import is_linear
if is_linear(original_form):
# Numeical jacobian apply base class
base_class("Dune::PDELab::NumericalJacobianApply{}<{}>".format(which, loptype), classtag="operator")
# Numerical jacobian apply initializer list
initializer_list("Dune::PDELab::NumericalJacobianApply{}<{}>".format(which, loptype),
["{}.get<double>(\"numerical_epsilon.{}\", 1e-9)".format(ini_constructor, ini, which.lower())],
classtag="operator",
)
else:
# Numerical nonlinear jacobian apply base class
base_class("Dune::PDELab::NumericalNonlinearJacobianApply{}<{}>".format(which, loptype), classtag="operator")
# Numerical nonlinear jacobian apply initializer list
initializer_list("Dune::PDELab::NumericalNonlinearJacobianApply{}<{}>".format(which, loptype),
["{}.get<double>(\"numerical_epsilon.{}\", 1e-9)".format(ini_constructor, ini, which.lower())],
classtag="operator",
)
operator_kernels[(measure, 'residual')] = kernel
# Generate the necessary jacobian methods
if not get_form_option("numerical_jacobian"):
logger.info("generate_localoperator_kernels: create jacobian methods")
from ufl import derivative
jacform = derivative(original_form, original_form.coefficients()[0])
from dune.perftool.ufl.preprocess import preprocess_form
jacform = preprocess_form(jacform).preprocessed_form
with global_context(form_type="jacobian"):
if get_form_option("generate_jacobians"):
for measure in set(i.integral_type() for i in jacform.integrals()):
logger.info("generate_localoperator_kernels: measure {}".format(measure))
with global_context(integral_type=measure):
with global_context(kernel=assembler_routine_name()):
kernel = [k for k in get_backend(interface="generate_kernels_per_integral")(jacform.integrals_by_type(measure))]
operator_kernels[(measure, 'jacobian')] = kernel
# Generate dummy functions for those kernels, that vanished in the differentiation process
# We *could* solve this problem by using lambda_* terms but we do not really want that, so
# we use empty jacobian assembly methods instead
alpha_measures = set(i.integral_type() for i in form.integrals())
jacobian_measures = set(i.integral_type() for i in jacform.integrals())
for it in alpha_measures - jacobian_measures:
with global_context(integral_type=it):
from dune.perftool.pdelab.signatures import assembly_routine_signature
operator_kernels[(it, 'jacobian')] = [LoopyKernelMethod(assembly_routine_signature(), kernel=None)]
# Jacobian apply methods for matrix-free computations
if get_form_option("matrix_free"):
# The apply vector has reserved index 1 so we directly use Coefficient class from ufl
from ufl import Coefficient
apply_coefficient = Coefficient(form.coefficients()[0].ufl_element(), 1)
# Create application of jacobian on vector
from ufl import action
jac_apply_form = action(jacform, apply_coefficient)
# Create kernel for jacobian application
with global_context(form_type="jacobian_apply"):
for measure in set(i.integral_type() for i in jac_apply_form.integrals()):
with global_context(integral_type=measure):
with global_context(kernel=assembler_routine_name()):
kernel = [k for k in get_backend(interface="generate_kernels_per_integral")(jac_apply_form.integrals_by_type(measure))]
operator_kernels[(measure, 'jacobian_apply')] = kernel
# Generate dummy functions for those kernels, that vanished in the differentiation process
# We *could* solve this problem by using lambda_* terms but we do not really want that, so
# we use empty jacobian assembly methods instead
alpha_measures = set(i.integral_type() for i in form.integrals())
jacobian_apply_measures = set(i.integral_type() for i in jac_apply_form.integrals())
for it in alpha_measures - jacobian_apply_measures:
with global_context(integral_type=it):
from dune.perftool.pdelab.signatures import assembly_routine_signature
operator_kernels[(it, 'jacobian_apply')] = [LoopyKernelMethod(assembly_routine_signature(), kernel=None)]
# Return the set of generated kernels
return operator_kernels
def generate_localoperator_file(kernels, filename):
operator_methods = []
for k in kernels.values():
operator_methods.extend(k)
if get_option('instrumentation_level') >= 3:
include_file('dune/perftool/common/timer.hh', filetag='operatorfile')
operator_methods.append(TimerMethod())
elif get_option('opcounter'):
include_file('dune/perftool/common/timer.hh', filetag='operatorfile')
# Write the file!
from dune.perftool.file import generate_file
# TODO take the name of this thing from the UFL file
lop = cgen_class_from_cache("operator", members=operator_methods)
generate_file(filename, "operatorfile", [lop])