def _adjust_target(self, spec): """Assumes that the architecture and the compiler have been set already and checks if the current target microarchitecture is the default and can be optimized by the compiler. If not, downgrades the microarchitecture until a suitable one is found. If none can be found raise an error. Args: spec: spec to be concretized Returns: True if any modification happened, False otherwise """ import archspec.cpu # Try to adjust the target only if it is the default # target for this platform current_target = spec.architecture.target current_platform = spack.architecture.get_platform( spec.architecture.platform ) default_target = current_platform.target('default_target') if PackagePrefs.has_preferred_targets(spec.name): default_target = self.target_from_package_preferences(spec) if current_target != default_target or ( self.abstract_spec and self.abstract_spec.architecture and self.abstract_spec.architecture.concrete): return False try: current_target.optimization_flags(spec.compiler) except archspec.cpu.UnsupportedMicroarchitecture: microarchitecture = current_target.microarchitecture for ancestor in microarchitecture.ancestors: candidate = None try: candidate = spack.architecture.Target(ancestor) candidate.optimization_flags(spec.compiler) except archspec.cpu.UnsupportedMicroarchitecture: continue if candidate is not None: msg = ('{0.name}@{0.version} cannot build optimized ' 'binaries for "{1}". Using best target possible: ' '"{2}"') msg = msg.format(spec.compiler, current_target, candidate) tty.warn(msg) spec.architecture.target = candidate return True else: raise return False
def concretize_architecture(self, spec): """If the spec is empty provide the defaults of the platform. If the architecture is not a string type, then check if either the platform, target or operating system are concretized. If any of the fields are changed then return True. If everything is concretized (i.e the architecture attribute is a namedtuple of classes) then return False. If the target is a string type, then convert the string into a concretized architecture. If it has no architecture and the root of the DAG has an architecture, then use the root otherwise use the defaults on the platform. """ # ensure type safety for the architecture if spec.architecture is None: spec.architecture = spack.spec.ArchSpec() if spec.architecture.platform and \ (spec.architecture.os and spec.architecture.target): return False # Get platform of nearest spec with a platform, including spec # If spec has a platform, easy if spec.architecture.platform: new_plat = spack.architecture.get_platform( spec.architecture.platform) else: # Else if anyone else has a platform, take the closest one # Search up, then down, along build/link deps first # Then any nearest. Algorithm from compilerspec search platform_spec = find_spec( spec, lambda x: x.architecture and x.architecture.platform) if platform_spec: new_plat = spack.architecture.get_platform( platform_spec.architecture.platform) else: # If no platform anywhere in this spec, grab the default new_plat = spack.architecture.platform() # Get nearest spec with relevant platform and an os # Generally, same algorithm as finding platform, except we only # consider specs that have a platform if spec.architecture.os: new_os = spec.architecture.os else: new_os_spec = find_spec( spec, lambda x: (x.architecture and x.architecture.platform == str(new_plat) and x.architecture.os)) if new_os_spec: new_os = new_os_spec.architecture.os else: new_os = new_plat.operating_system('default_os') # Get the nearest spec with relevant platform and a target # Generally, same algorithm as finding os if spec.architecture.target: new_target = spec.architecture.target else: new_target_spec = find_spec( spec, lambda x: (x.architecture and x.architecture.platform == str(new_plat) and x.architecture.target)) if new_target_spec: new_target = new_target_spec.architecture.target else: # To get default platform, consider package prefs if PackagePrefs.has_preferred_targets(spec.name): target_prefs = PackagePrefs(spec.name, 'target') target_specs = [ spack.spec.Spec('target=%s' % tname) for tname in cpu.targets ] def tspec_filter(s): # Filter target specs by whether the architecture # family is the current machine type. This ensures # we only consider x86_64 targets when on an # x86_64 machine, etc. This may need to change to # enable setting cross compiling as a default target = cpu.targets[str(s.architecture.target)] arch_family_name = target.family.name return arch_family_name == platform.machine() # Sort filtered targets by package prefs target_specs = list(filter(tspec_filter, target_specs)) target_specs.sort(key=target_prefs) new_target = target_specs[0].architecture.target else: new_target = new_plat.target('default_target') # Construct new architecture, compute whether spec changed arch_spec = (str(new_plat), str(new_os), str(new_target)) new_arch = spack.spec.ArchSpec(arch_spec) spec_changed = new_arch != spec.architecture spec.architecture = new_arch return spec_changed
def concretize_architecture(self, spec): """If the spec is empty provide the defaults of the platform. If the architecture is not a string type, then check if either the platform, target or operating system are concretized. If any of the fields are changed then return True. If everything is concretized (i.e the architecture attribute is a namedtuple of classes) then return False. If the target is a string type, then convert the string into a concretized architecture. If it has no architecture and the root of the DAG has an architecture, then use the root otherwise use the defaults on the platform. """ # ensure type safety for the architecture if spec.architecture is None: spec.architecture = spack.spec.ArchSpec() if spec.architecture.concrete: return False # Get platform of nearest spec with a platform, including spec # If spec has a platform, easy if spec.architecture.platform: new_plat = spack.architecture.get_platform( spec.architecture.platform) else: # Else if anyone else has a platform, take the closest one # Search up, then down, along build/link deps first # Then any nearest. Algorithm from compilerspec search platform_spec = find_spec( spec, lambda x: x.architecture and x.architecture.platform ) if platform_spec: new_plat = spack.architecture.get_platform( platform_spec.architecture.platform) else: # If no platform anywhere in this spec, grab the default new_plat = spack.architecture.platform() # Get nearest spec with relevant platform and an os # Generally, same algorithm as finding platform, except we only # consider specs that have a platform if spec.architecture.os: new_os = spec.architecture.os else: new_os_spec = find_spec( spec, lambda x: (x.architecture and x.architecture.platform == str(new_plat) and x.architecture.os) ) if new_os_spec: new_os = new_os_spec.architecture.os else: new_os = new_plat.operating_system('default_os') # Get the nearest spec with relevant platform and a target # Generally, same algorithm as finding os curr_target = None if spec.architecture.target: curr_target = spec.architecture.target if spec.architecture.target and spec.architecture.target_concrete: new_target = spec.architecture.target else: new_target_spec = find_spec( spec, lambda x: (x.architecture and x.architecture.platform == str(new_plat) and x.architecture.target and x.architecture.target != curr_target) ) if new_target_spec: if curr_target: # constrain one target by the other new_target_arch = spack.spec.ArchSpec( (None, None, new_target_spec.architecture.target)) curr_target_arch = spack.spec.ArchSpec( (None, None, curr_target)) curr_target_arch.constrain(new_target_arch) new_target = curr_target_arch.target else: new_target = new_target_spec.architecture.target else: # To get default platform, consider package prefs if PackagePrefs.has_preferred_targets(spec.name): new_target = self.target_from_package_preferences(spec) else: new_target = new_plat.target('default_target') if curr_target: # convert to ArchSpec to compare satisfaction new_target_arch = spack.spec.ArchSpec( (None, None, str(new_target))) curr_target_arch = spack.spec.ArchSpec( (None, None, str(curr_target))) if not new_target_arch.satisfies(curr_target_arch): # new_target is an incorrect guess based on preferences # and/or default valid_target_ranges = str(curr_target).split(',') for target_range in valid_target_ranges: t_min, t_sep, t_max = target_range.partition(':') if not t_sep: new_target = t_min break elif t_max: new_target = t_max break elif t_min: # TODO: something better than picking first new_target = t_min break # Construct new architecture, compute whether spec changed arch_spec = (str(new_plat), str(new_os), str(new_target)) new_arch = spack.spec.ArchSpec(arch_spec) spec_changed = new_arch != spec.architecture spec.architecture = new_arch return spec_changed
def concretize_architecture(self, spec): """If the spec is empty provide the defaults of the platform. If the architecture is not a string type, then check if either the platform, target or operating system are concretized. If any of the fields are changed then return True. If everything is concretized (i.e the architecture attribute is a namedtuple of classes) then return False. If the target is a string type, then convert the string into a concretized architecture. If it has no architecture and the root of the DAG has an architecture, then use the root otherwise use the defaults on the platform. """ # ensure type safety for the architecture if spec.architecture is None: spec.architecture = spack.spec.ArchSpec() if spec.architecture.platform and \ (spec.architecture.os and spec.architecture.target): return False # Get platform of nearest spec with a platform, including spec # If spec has a platform, easy if spec.architecture.platform: new_plat = spack.architecture.get_platform( spec.architecture.platform) else: # Else if anyone else has a platform, take the closest one # Search up, then down, along build/link deps first # Then any nearest. Algorithm from compilerspec search platform_spec = find_spec( spec, lambda x: x.architecture and x.architecture.platform) if platform_spec: new_plat = spack.architecture.get_platform( platform_spec.architecture.platform) else: # If no platform anywhere in this spec, grab the default new_plat = spack.architecture.platform() # Get nearest spec with relevant platform and an os # Generally, same algorithm as finding platform, except we only # consider specs that have a platform if spec.architecture.os: new_os = spec.architecture.os else: new_os_spec = find_spec( spec, lambda x: (x.architecture and x.architecture.platform == str(new_plat) and x.architecture.os)) if new_os_spec: new_os = new_os_spec.architecture.os else: new_os = new_plat.operating_system('default_os') # Get the nearest spec with relevant platform and a target # Generally, same algorithm as finding os if spec.architecture.target: new_target = spec.architecture.target else: new_target_spec = find_spec( spec, lambda x: (x.architecture and x.architecture.platform == str(new_plat) and x.architecture.target)) if new_target_spec: new_target = new_target_spec.architecture.target else: # To get default platform, consider package prefs if PackagePrefs.has_preferred_targets(spec.name): new_target = self.target_from_package_preferences(spec) else: new_target = new_plat.target('default_target') # Construct new architecture, compute whether spec changed arch_spec = (str(new_plat), str(new_os), str(new_target)) new_arch = spack.spec.ArchSpec(arch_spec) spec_changed = new_arch != spec.architecture spec.architecture = new_arch return spec_changed