ci: fixes for compiler bootstrapping (#17563)

This PR addresses a number of issues related to compiler bootstrapping.

Specifically:
1. Collect compilers to be bootstrapped while queueing in installer
Compiler tasks currently have an incomplete list in their task.dependents,
making those packages fail to install as they think they have not all their
dependencies installed. This PR collects the dependents and sets them on
compiler tasks.

2. allow boostrapped compilers to back off target
Bootstrapped compilers may be built with a compiler that doesn't support
the target used by the rest of the spec.  Allow them to build with less
aggressive target optimization settings.

3. Support for target ranges
Backing off the target necessitates computing target ranges, so make Spack
handle those properly.  Notably, this adds an intersection method for target
ranges and fixes the way ranges are satisfied and constrained on Spec objects.

This PR also:
- adds testing
- improves concretizer handling of target ranges

Co-authored-by: Harmen Stoppels <harmenstoppels@gmail.com>
Co-authored-by: Gregory Becker <becker33@llnl.gov>
Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>
This commit is contained in:
Scott Wittenburg 2020-12-18 03:05:06 -07:00 committed by Tamara Dahlgren
parent d82d2bb2db
commit 18c5f10ae7
7 changed files with 239 additions and 61 deletions

View file

@ -253,8 +253,7 @@ def concretize_architecture(self, spec):
if spec.architecture is None:
spec.architecture = spack.spec.ArchSpec()
if spec.architecture.platform and \
(spec.architecture.os and spec.architecture.target):
if spec.architecture.concrete:
return False
# Get platform of nearest spec with a platform, including spec
@ -294,22 +293,58 @@ def concretize_architecture(self, spec):
# 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)
x.architecture.target and
x.architecture.target != curr_target)
)
if new_target_spec:
new_target = new_target_spec.architecture.target
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))
@ -384,7 +419,7 @@ def concretize_compiler(self, spec):
"""
# Pass on concretizing the compiler if the target or operating system
# is not yet determined
if not (spec.architecture.os and spec.architecture.target):
if not spec.architecture.concrete:
# We haven't changed, but other changes need to happen before we
# continue. `return True` here to force concretization to keep
# running.
@ -482,7 +517,7 @@ def concretize_compiler_flags(self, spec):
"""
# Pass on concretizing the compiler flags if the target or operating
# system is not set.
if not (spec.architecture.os and spec.architecture.target):
if not spec.architecture.concrete:
# We haven't changed, but other changes need to happen before we
# continue. `return True` here to force concretization to keep
# running.

View file

@ -182,7 +182,7 @@ def _do_fake_install(pkg):
dump_packages(pkg.spec, packages_dir)
def _packages_needed_to_bootstrap_compiler(pkg):
def _packages_needed_to_bootstrap_compiler(compiler, architecture, pkgs):
"""
Return a list of packages required to bootstrap `pkg`s compiler
@ -190,7 +190,11 @@ def _packages_needed_to_bootstrap_compiler(pkg):
matches the package spec.
Args:
pkg (Package): the package that may need its compiler installed
compiler (CompilerSpec): the compiler to bootstrap
architecture (ArchSpec): the architecture for which to boostrap the
compiler
pkgs (list of PackageBase): the packages that may need their compiler
installed
Return:
(list) list of tuples, (PackageBase, bool), for concretized compiler-
@ -199,21 +203,27 @@ def _packages_needed_to_bootstrap_compiler(pkg):
(``True``) or one of its dependencies (``False``). The list
will be empty if there are no compilers.
"""
tty.debug('Bootstrapping {0} compiler for {1}'
.format(pkg.spec.compiler, package_id(pkg)))
tty.debug('Bootstrapping {0} compiler'.format(compiler))
compilers = spack.compilers.compilers_for_spec(
pkg.spec.compiler, arch_spec=pkg.spec.architecture)
compiler, arch_spec=architecture)
if compilers:
return []
dep = spack.compilers.pkg_spec_for_compiler(pkg.spec.compiler)
dep.architecture = pkg.spec.architecture
dep = spack.compilers.pkg_spec_for_compiler(compiler)
# Set the architecture for the compiler package in a way that allows the
# concretizer to back off if needed for the older bootstrapping compiler
dep.constrain('platform=%s' % str(architecture.platform))
dep.constrain('os=%s' % str(architecture.os))
dep.constrain('target=%s:' %
architecture.target.microarchitecture.family.name)
# concrete CompilerSpec has less info than concrete Spec
# concretize as Spec to add that information
dep.concretize()
# mark compiler as depended-on by the package that uses it
dep._dependents[pkg.name] = spack.spec.DependencySpec(
pkg.spec, dep, ('build',))
# mark compiler as depended-on by the packages that use it
for pkg in pkgs:
dep._dependents[pkg.name] = spack.spec.DependencySpec(
pkg.spec, dep, ('build',))
packages = [(s.package, False) for
s in dep.traverse(order='post', root=False)]
packages.append((dep.package, True))
@ -647,17 +657,21 @@ def __str__(self):
return '{0}: {1}; {2}; {3}; {4}'.format(
self.pid, requests, tasks, installed, failed)
def _add_bootstrap_compilers(self, pkg, request, all_deps):
def _add_bootstrap_compilers(
self, compiler, architecture, pkgs, request, all_deps):
"""
Add bootstrap compilers and dependencies to the build queue.
Args:
pkg (PackageBase): the package with possible compiler dependencies
compiler: the compiler to boostrap
architecture: the architecture for which to bootstrap the compiler
pkgs (PackageBase): the package with possible compiler dependencies
request (BuildRequest): the associated install request
all_deps (defaultdict(set)): dictionary of all dependencies and
associated dependents
"""
packages = _packages_needed_to_bootstrap_compiler(pkg)
packages = _packages_needed_to_bootstrap_compiler(
compiler, architecture, pkgs)
for (comp_pkg, is_compiler) in packages:
if package_id(comp_pkg) not in self.build_tasks:
self._add_init_task(comp_pkg, request, is_compiler, all_deps)
@ -997,14 +1011,42 @@ def _add_tasks(self, request, all_deps):
'config:install_missing_compilers', False)
install_deps = request.install_args.get('install_deps')
# Bootstrap compilers first
if install_deps and install_compilers:
packages_per_compiler = {}
for dep in request.traverse_dependencies():
dep_pkg = dep.package
compiler = dep_pkg.spec.compiler
arch = dep_pkg.spec.architecture
if compiler not in packages_per_compiler:
packages_per_compiler[compiler] = {}
if arch not in packages_per_compiler[compiler]:
packages_per_compiler[compiler][arch] = []
packages_per_compiler[compiler][arch].append(dep_pkg)
compiler = request.pkg.spec.compiler
arch = request.pkg.spec.architecture
if compiler not in packages_per_compiler:
packages_per_compiler[compiler] = {}
if arch not in packages_per_compiler[compiler]:
packages_per_compiler[compiler][arch] = []
packages_per_compiler[compiler][arch].append(request.pkg)
for compiler, archs in packages_per_compiler.items():
for arch, packages in archs.items():
self._add_bootstrap_compilers(
compiler, arch, packages, request, all_deps)
if install_deps:
for dep in request.traverse_dependencies():
dep_pkg = dep.package
# First push any missing compilers (if requested)
if install_compilers:
self._add_bootstrap_compilers(dep_pkg, request, all_deps)
dep_id = package_id(dep_pkg)
if dep_id not in self.build_tasks:
self._add_init_task(dep_pkg, request, False, all_deps)
@ -1014,13 +1056,9 @@ def _add_tasks(self, request, all_deps):
# of the spec.
spack.store.db.clear_failure(dep, force=False)
# Push any missing compilers (if requested) as part of the
# package dependencies.
if install_compilers:
self._add_bootstrap_compilers(request.pkg, request, all_deps)
install_package = request.install_args.get('install_package')
if install_package and request.pkg_id not in self.build_tasks:
# Be sure to clear any previous failure
spack.store.db.clear_failure(request.spec, force=True)
@ -1752,6 +1790,11 @@ def __init__(self, pkg, request, compiler, start, attempts, status,
# to support tracking of parallel, multi-spec, environment installs.
self.dependents = set(get_dependent_ids(self.pkg.spec))
tty.debug(
'Pkg id {0} has the following dependents:'.format(self.pkg_id))
for dep_id in self.dependents:
tty.debug('- {0}'.format(dep_id))
# Set of dependencies
#
# Be consistent wrt use of dependents and dependencies. That is,
@ -1772,7 +1815,10 @@ def __init__(self, pkg, request, compiler, start, attempts, status,
arch_spec=arch_spec):
# The compiler is in the queue, identify it as dependency
dep = spack.compilers.pkg_spec_for_compiler(compiler_spec)
dep.architecture = arch_spec
dep.constrain('platform=%s' % str(arch_spec.platform))
dep.constrain('os=%s' % str(arch_spec.os))
dep.constrain('target=%s:' %
arch_spec.target.microarchitecture.family.name)
dep.concretize()
dep_id = package_id(dep.package)
self.dependencies.add(dep_id)

View file

@ -1112,6 +1112,12 @@ def target_defaults(self, specs):
self.gen.h2('Target compatibility')
compatible_targets = [uarch] + uarch.ancestors
additional_targets_in_family = sorted([
t for t in archspec.cpu.TARGETS.values()
if (t.family.name == uarch.family.name and
t not in compatible_targets)
], key=lambda x: len(x.ancestors), reverse=True)
compatible_targets += additional_targets_in_family
compilers = self.possible_compilers
# this loop can be used to limit the number of targets
@ -1155,7 +1161,9 @@ def target_defaults(self, specs):
print("TTYPE:", type(platform.target(spec.target.name)))
target = archspec.cpu.TARGETS.get(spec.target.name)
if not target:
raise ValueError("Invalid target: ", spec.target.name)
self.target_ranges(spec, None)
continue
if target not in compatible_targets:
compatible_targets.append(target)
@ -1290,6 +1298,10 @@ def define_target_constraints(self):
def _all_targets_satisfiying(single_constraint):
allowed_targets = []
if ':' not in single_constraint:
return [single_constraint]
t_min, _, t_max = single_constraint.partition(':')
for test_target in archspec.cpu.TARGETS.values():
# Check lower bound

View file

@ -349,16 +349,21 @@ node_target_weight(Package, Weight)
target_weight(Target, Package, Weight).
% compatibility rules for targets among nodes
node_target_match_pref(Package, Target) :- node_target_set(Package, Target).
node_target_match_pref(Dependency, Target)
:- depends_on(Package, Dependency), node_target_match_pref(Package, Target),
:- depends_on(Package, Dependency),
node_target_match_pref(Package, Target),
not node_target_set(Dependency, _).
node_target_match_pref(Dependency, Target)
:- depends_on(Package, Dependency),
node_target_set(Package, Target),
not node_target_match_pref(Package, Target),
not node_target_set(Dependency, _).
node_target_match_pref(Dependency, Target)
:- depends_on(Package, Dependency),
root(Package), node_target(Package, Target),
not node_target_match_pref(Package, _),
not node_target_set(Dependency, _).
not node_target_match_pref(Package, _).
node_target_match(Package, 1)
:- node_target(Package, Target), node_target_match_pref(Package, Target).

View file

@ -359,13 +359,11 @@ def satisfies(self, other, strict=False):
return False
# Check target
return self._satisfies_target(other.target, strict=strict)
return self.target_satisfies(other, strict=strict)
def _satisfies_target(self, other_target, strict):
self_target = self.target
need_to_check = bool(other_target) if strict or self.concrete \
else bool(other_target and self_target)
def target_satisfies(self, other, strict):
need_to_check = bool(other.target) if strict or self.concrete \
else bool(other.target and self.target)
# If there's no need to check we are fine
if not need_to_check:
@ -375,24 +373,68 @@ def _satisfies_target(self, other_target, strict):
if self.target is None:
return False
for target_range in str(other_target).split(','):
t_min, sep, t_max = target_range.partition(':')
return bool(self.target_intersection(other))
# Checking against a single specific target
if not sep and self_target == t_min:
return True
def target_constrain(self, other):
if not other.target_satisfies(self, strict=False):
raise UnsatisfiableArchitectureSpecError(self, other)
if not sep and self_target != t_min:
return False
if self.target_concrete:
return False
elif other.target_concrete:
self.target = other.target
return True
# Check against a range
min_ok = self_target.microarchitecture >= t_min if t_min else True
max_ok = self_target.microarchitecture <= t_max if t_max else True
# Compute the intersection of every combination of ranges in the lists
results = self.target_intersection(other)
# Do we need to dedupe here?
self.target = ','.join(results)
if min_ok and max_ok:
return True
def target_intersection(self, other):
results = []
return False
if not self.target or not other.target:
return results
for s_target_range in str(self.target).split(','):
s_min, s_sep, s_max = s_target_range.partition(':')
for o_target_range in str(other.target).split(','):
o_min, o_sep, o_max = o_target_range.partition(':')
if not s_sep:
# s_target_range is a concrete target
# get a microarchitecture reference for at least one side
# of each comparison so we can use archspec comparators
s_comp = spack.architecture.Target(s_min).microarchitecture
if not o_sep:
if s_min == o_min:
results.append(s_min)
elif (not o_min or s_comp >= o_min) and (
not o_max or s_comp <= o_max):
results.append(s_min)
elif not o_sep:
# "cast" to microarchitecture
o_comp = spack.architecture.Target(o_min).microarchitecture
if (not s_min or o_comp >= s_min) and (
not s_max or o_comp <= s_max):
results.append(o_min)
else:
# Take intersection of two ranges
# Lots of comparisons needed
_s_min = spack.architecture.Target(s_min).microarchitecture
_s_max = spack.architecture.Target(s_max).microarchitecture
_o_min = spack.architecture.Target(o_min).microarchitecture
_o_max = spack.architecture.Target(o_max).microarchitecture
n_min = s_min if _s_min >= _o_min else o_min
n_max = s_max if _s_max <= _o_max else o_max
_n_min = spack.architecture.Target(n_min).microarchitecture
_n_max = spack.architecture.Target(n_max).microarchitecture
if _n_min == _n_max:
results.append(n_min)
elif not n_min or not n_max or _n_min < _n_max:
results.append('%s:%s' % (n_min, n_max))
return results
def constrain(self, other):
"""Projects all architecture fields that are specified in the given
@ -409,16 +451,18 @@ def constrain(self, other):
"""
other = self._autospec(other)
if not self.satisfies(other):
raise UnsatisfiableArchitectureSpecError(self, other)
if not other.satisfies(self):
raise UnsatisfiableArchitectureSpecError(other, self)
constrained = False
for attr in ('platform', 'os', 'target'):
for attr in ('platform', 'os'):
svalue, ovalue = getattr(self, attr), getattr(other, attr)
if svalue is None and ovalue is not None:
setattr(self, attr, ovalue)
constrained = True
self.target_constrain(other)
return constrained
def copy(self):
@ -431,7 +475,13 @@ def copy(self):
def concrete(self):
"""True if the spec is concrete, False otherwise"""
# return all(v for k, v in six.iteritems(self.to_cmp_dict()))
return self.platform and self.os and self.target
return (self.platform and self.os and self.target and
self.target_concrete)
@property
def target_concrete(self):
"""True if the target is not a range or list."""
return ':' not in str(self.target) and ',' not in str(self.target)
def to_dict(self):
d = syaml.syaml_dict([

View file

@ -12,6 +12,7 @@
import pytest
import spack.architecture
import spack.concretize
from spack.spec import Spec
from spack.platforms.cray import Cray
from spack.platforms.linux import Linux
@ -223,3 +224,29 @@ def test_satisfy_strict_constraint_when_not_concrete(
architecture = spack.spec.ArchSpec(architecture_tuple)
constraint = spack.spec.ArchSpec(constraint_tuple)
assert not architecture.satisfies(constraint, strict=True)
@pytest.mark.parametrize('root_target_range,dep_target_range,result', [
(('x86_64:nocona', 'x86_64:core2', 'nocona')), # pref not in intersection
(('x86_64:core2', 'x86_64:nocona', 'nocona')),
(('x86_64:haswell', 'x86_64:mic_knl', 'core2')), # pref in intersection
(('ivybridge', 'nocona:skylake', 'ivybridge')), # one side concrete
(('haswell:icelake', 'broadwell', 'broadwell')),
# multiple ranges in lists with multiple overlaps
(('x86_64:nocona,haswell:broadwell', 'nocona:haswell,skylake:',
'nocona')),
# lists with concrete targets, lists compared to ranges
(('x86_64,haswell', 'core2:broadwell', 'haswell'))
])
@pytest.mark.usefixtures('mock_packages', 'config')
def test_concretize_target_ranges(
root_target_range, dep_target_range, result
):
# use foobar=bar to make the problem simpler for the old concretizer
# the new concretizer should not need that help
spec = Spec('a %%gcc@10 foobar=bar target=%s ^b target=%s' %
(root_target_range, dep_target_range))
with spack.concretize.disable_compiler_existence_check():
spec.concretize()
assert str(spec).count('arch=test-debian6-%s' % result) == 2

View file

@ -450,7 +450,8 @@ def test_packages_needed_to_bootstrap_compiler_none(install_mockery):
spec.concretize()
assert spec.concrete
packages = inst._packages_needed_to_bootstrap_compiler(spec.package)
packages = inst._packages_needed_to_bootstrap_compiler(
spec.compiler, spec.architecture, [spec.package])
assert not packages
@ -468,7 +469,8 @@ def _conc_spec(compiler):
monkeypatch.setattr(spack.compilers, 'pkg_spec_for_compiler', _conc_spec)
monkeypatch.setattr(spack.spec.Spec, 'concretize', _noop)
packages = inst._packages_needed_to_bootstrap_compiler(spec.package)
packages = inst._packages_needed_to_bootstrap_compiler(
spec.compiler, spec.architecture, [spec.package])
assert packages
@ -626,7 +628,7 @@ def test_check_deps_status_upstream(install_mockery, monkeypatch):
def test_add_bootstrap_compilers(install_mockery, monkeypatch):
from collections import defaultdict
def _pkgs(pkg):
def _pkgs(compiler, architecture, pkgs):
spec = spack.spec.Spec('mpi').concretized()
return [(spec.package, True)]
@ -636,7 +638,8 @@ def _pkgs(pkg):
all_deps = defaultdict(set)
monkeypatch.setattr(inst, '_packages_needed_to_bootstrap_compiler', _pkgs)
installer._add_bootstrap_compilers(request.pkg, request, all_deps)
installer._add_bootstrap_compilers(
'fake', 'fake', [request.pkg], request, all_deps)
ids = list(installer.build_tasks)
assert len(ids) == 1