Cherry-picking virtual dependencies (#35322)

This PR makes it possible to select only a subset of virtual dependencies from a spec that _may_ provide more. To select providers, a syntax to specify edge attributes is introduced:
```
hdf5 ^[virtuals=mpi] mpich
```
With that syntax we can concretize specs like:
```console
$ spack spec strumpack ^[virtuals=mpi] intel-parallel-studio+mkl ^[virtuals=lapack] openblas
```

On `develop` this would currently fail with:
```console
$ spack spec strumpack ^intel-parallel-studio+mkl ^openblas
==> Error: Spec cannot include multiple providers for virtual 'blas'
    Requested 'intel-parallel-studio' and 'openblas'
```

In package recipes, virtual specs that are declared in the same `provides` directive need to be provided _together_. This means that e.g. `openblas`, which has:
```python
provides("blas", "lapack")
```
needs to provide both `lapack` and `blas` when requested to provide at least one of them.

## Additional notes

This capability is needed to model compilers. Assuming that languages are treated like virtual dependencies, we might want e.g. to use LLVM to compile C/C++ and Gnu GCC to compile Fortran. This can be accomplished by the following[^1]:
```
hdf5 ^[virtuals=c,cxx] llvm ^[virtuals=fortran] gcc
```

[^1]: We plan to add some syntactic sugar around this syntax, and reuse the `%` sigil to avoid having a lot of boilerplate around compilers.

Modifications:
- [x] Add syntax to interact with edge attributes from spec literals
- [x] Add concretization logic to be able to cherry-pick virtual dependencies
- [x] Extend semantic of the `provides` directive to express when virtuals need to be provided together
- [x] Add unit-tests and documentation
This commit is contained in:
Massimiliano Culpo 2023-11-02 07:35:23 +01:00 committed by GitHub
parent 6cd2241e49
commit 16fa3b9f07
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29 changed files with 1123 additions and 150 deletions

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@ -1526,6 +1526,30 @@ any MPI implementation will do. If another package depends on
error. Likewise, if you try to plug in some package that doesn't
provide MPI, Spack will raise an error.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Explicit binding of virtual dependencies
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
There are packages that provide more than just one virtual dependency. When interacting with them, users
might want to utilize just a subset of what they could provide, and use other providers for virtuals they
need.
It is possible to be more explicit and tell Spack which dependency should provide which virtual, using a
special syntax:
.. code-block:: console
$ spack spec strumpack ^[virtuals=mpi] intel-parallel-studio+mkl ^[virtuals=lapack] openblas
Concretizing the spec above produces the following DAG:
.. figure:: images/strumpack_virtuals.svg
:scale: 60 %
:align: center
where ``intel-parallel-studio`` *could* provide ``mpi``, ``lapack``, and ``blas`` but is used only for the former. The ``lapack``
and ``blas`` dependencies are satisfied by ``openblas``.
^^^^^^^^^^^^^^^^^^^^^^^^
Specifying Specs by Hash
^^^^^^^^^^^^^^^^^^^^^^^^

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@ -0,0 +1,534 @@
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After

Width:  |  Height:  |  Size: 58 KiB

View file

@ -2974,6 +2974,33 @@ The ``provides("mpi")`` call tells Spack that the ``mpich`` package
can be used to satisfy the dependency of any package that
``depends_on("mpi")``.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Providing multiple virtuals simultaneously
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Packages can provide more than one virtual dependency. Sometimes, due to implementation details,
there are subsets of those virtuals that need to be provided together by the same package.
A well-known example is ``openblas``, which provides both the ``lapack`` and ``blas`` API in a single ``libopenblas``
library. A package that needs ``lapack`` and ``blas`` must either use ``openblas`` to provide both, or not use
``openblas`` at all. It cannot pick one or the other.
To express this constraint in a package, the two virtual dependencies must be listed in the same ``provides`` directive:
.. code-block:: python
provides('blas', 'lapack')
This makes it impossible to select ``openblas`` as a provider for one of the two
virtual dependencies and not for the other. If you try to, Spack will report an error:
.. code-block:: console
$ spack spec netlib-scalapack ^[virtuals=lapack] openblas ^[virtuals=blas] atlas
==> Error: concretization failed for the following reasons:
1. Package 'openblas' needs to provide both 'lapack' and 'blas' together, but provides only 'lapack'
^^^^^^^^^^^^^^^^^^^^
Versioned Interfaces
^^^^^^^^^^^^^^^^^^^^

View file

@ -573,17 +573,21 @@ def _execute_extends(pkg):
return _execute_extends
@directive("provided")
def provides(*specs, **kwargs):
"""Allows packages to provide a virtual dependency. If a package provides
'mpi', other packages can declare that they depend on "mpi", and spack
can use the providing package to satisfy the dependency.
@directive(dicts=("provided", "provided_together"))
def provides(*specs, when: Optional[str] = None):
"""Allows packages to provide a virtual dependency.
If a package provides "mpi", other packages can declare that they depend on "mpi",
and spack can use the providing package to satisfy the dependency.
Args:
*specs: virtual specs provided by this package
when: condition when this provides clause needs to be considered
"""
def _execute_provides(pkg):
import spack.parser # Avoid circular dependency
when = kwargs.get("when")
when_spec = make_when_spec(when)
if not when_spec:
return
@ -591,15 +595,18 @@ def _execute_provides(pkg):
# ``when`` specs for ``provides()`` need a name, as they are used
# to build the ProviderIndex.
when_spec.name = pkg.name
spec_objs = [spack.spec.Spec(x) for x in specs]
spec_names = [x.name for x in spec_objs]
if len(spec_names) > 1:
pkg.provided_together.setdefault(when_spec, []).append(set(spec_names))
for string in specs:
for provided_spec in spack.parser.parse(string):
if pkg.name == provided_spec.name:
raise CircularReferenceError("Package '%s' cannot provide itself." % pkg.name)
for provided_spec in spec_objs:
if pkg.name == provided_spec.name:
raise CircularReferenceError("Package '%s' cannot provide itself." % pkg.name)
if provided_spec not in pkg.provided:
pkg.provided[provided_spec] = set()
pkg.provided[provided_spec].add(when_spec)
if provided_spec not in pkg.provided:
pkg.provided[provided_spec] = set()
pkg.provided[provided_spec].add(when_spec)
return _execute_provides

View file

@ -528,10 +528,15 @@ def node_entry(self, node):
def edge_entry(self, edge):
colormap = {"build": "dodgerblue", "link": "crimson", "run": "goldenrod"}
label = ""
if edge.virtuals:
label = f" xlabel=\"virtuals={','.join(edge.virtuals)}\""
return (
edge.parent.dag_hash(),
edge.spec.dag_hash(),
f"[color=\"{':'.join(colormap[x] for x in dt.flag_to_tuple(edge.depflag))}\"]",
f"[color=\"{':'.join(colormap[x] for x in dt.flag_to_tuple(edge.depflag))}\""
+ label
+ "]",
)

View file

@ -6,7 +6,7 @@
Here is the EBNF grammar for a spec::
spec = [name] [node_options] { ^ node } |
spec = [name] [node_options] { ^[edge_properties] node } |
[name] [node_options] hash |
filename
@ -14,7 +14,8 @@
[name] [node_options] hash |
filename
node_options = [@(version_list|version_pair)] [%compiler] { variant }
node_options = [@(version_list|version_pair)] [%compiler] { variant }
edge_properties = [ { bool_variant | key_value } ]
hash = / id
filename = (.|/|[a-zA-Z0-9-_]*/)([a-zA-Z0-9-_./]*)(.json|.yaml)
@ -64,6 +65,7 @@
from llnl.util.tty import color
import spack.deptypes
import spack.error
import spack.spec
import spack.version
@ -126,6 +128,8 @@ class TokenType(TokenBase):
"""
# Dependency
START_EDGE_PROPERTIES = r"(?:\^\[)"
END_EDGE_PROPERTIES = r"(?:\])"
DEPENDENCY = r"(?:\^)"
# Version
VERSION_HASH_PAIR = rf"(?:@(?:{GIT_VERSION_PATTERN})=(?:{VERSION}))"
@ -280,16 +284,15 @@ def next_spec(
initial_spec = initial_spec or spack.spec.Spec()
root_spec = SpecNodeParser(self.ctx).parse(initial_spec)
while True:
if self.ctx.accept(TokenType.DEPENDENCY):
dependency = SpecNodeParser(self.ctx).parse()
if dependency is None:
msg = (
"this dependency sigil needs to be followed by a package name "
"or a node attribute (version, variant, etc.)"
)
raise SpecParsingError(msg, self.ctx.current_token, self.literal_str)
if self.ctx.accept(TokenType.START_EDGE_PROPERTIES):
edge_properties = EdgeAttributeParser(self.ctx, self.literal_str).parse()
edge_properties.setdefault("depflag", 0)
edge_properties.setdefault("virtuals", ())
dependency = self._parse_node(root_spec)
root_spec._add_dependency(dependency, **edge_properties)
elif self.ctx.accept(TokenType.DEPENDENCY):
dependency = self._parse_node(root_spec)
root_spec._add_dependency(dependency, depflag=0, virtuals=())
else:
@ -297,6 +300,18 @@ def next_spec(
return root_spec
def _parse_node(self, root_spec):
dependency = SpecNodeParser(self.ctx).parse()
if dependency is None:
msg = (
"the dependency sigil and any optional edge attributes must be followed by a "
"package name or a node attribute (version, variant, etc.)"
)
raise SpecParsingError(msg, self.ctx.current_token, self.literal_str)
if root_spec.concrete:
raise spack.spec.RedundantSpecError(root_spec, "^" + str(dependency))
return dependency
def all_specs(self) -> List["spack.spec.Spec"]:
"""Return all the specs that remain to be parsed"""
return list(iter(self.next_spec, None))
@ -438,6 +453,41 @@ def parse(self, initial_spec: "spack.spec.Spec") -> "spack.spec.Spec":
return initial_spec
class EdgeAttributeParser:
__slots__ = "ctx", "literal_str"
def __init__(self, ctx, literal_str):
self.ctx = ctx
self.literal_str = literal_str
def parse(self):
attributes = {}
while True:
if self.ctx.accept(TokenType.KEY_VALUE_PAIR):
name, value = self.ctx.current_token.value.split("=", maxsplit=1)
name = name.strip("'\" ")
value = value.strip("'\" ").split(",")
attributes[name] = value
if name not in ("deptypes", "virtuals"):
msg = (
"the only edge attributes that are currently accepted "
'are "deptypes" and "virtuals"'
)
raise SpecParsingError(msg, self.ctx.current_token, self.literal_str)
# TODO: Add code to accept bool variants here as soon as use variants are implemented
elif self.ctx.accept(TokenType.END_EDGE_PROPERTIES):
break
else:
msg = "unexpected token in edge attributes"
raise SpecParsingError(msg, self.ctx.next_token, self.literal_str)
# Turn deptypes=... to depflag representation
if "deptypes" in attributes:
deptype_string = attributes.pop("deptypes")
attributes["depflag"] = spack.deptypes.canonicalize(deptype_string)
return attributes
def parse(text: str) -> List["spack.spec.Spec"]:
"""Parse text into a list of strings

View file

@ -3,7 +3,6 @@
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
"""Classes and functions to manage providers of virtual dependencies"""
import itertools
from typing import Dict, List, Optional, Set
import spack.error
@ -11,33 +10,6 @@
import spack.util.spack_json as sjson
def _cross_provider_maps(lmap, rmap):
"""Return a dictionary that combines constraint requests from both input.
Args:
lmap: main provider map
rmap: provider map with additional constraints
"""
# TODO: this is pretty darned nasty, and inefficient, but there
# TODO: are not that many vdeps in most specs.
result = {}
for lspec, rspec in itertools.product(lmap, rmap):
try:
constrained = lspec.constrained(rspec)
except spack.error.UnsatisfiableSpecError:
continue
# lp and rp are left and right provider specs.
for lp_spec, rp_spec in itertools.product(lmap[lspec], rmap[rspec]):
if lp_spec.name == rp_spec.name:
try:
const = lp_spec.constrained(rp_spec, deps=False)
result.setdefault(constrained, set()).add(const)
except spack.error.UnsatisfiableSpecError:
continue
return result
class _IndexBase:
#: This is a dict of dicts used for finding providers of particular
#: virtual dependencies. The dict of dicts looks like:
@ -81,29 +53,6 @@ def providers_for(self, virtual_spec):
def __contains__(self, name):
return name in self.providers
def satisfies(self, other):
"""Determine if the providers of virtual specs are compatible.
Args:
other: another provider index
Returns:
True if the providers are compatible, False otherwise.
"""
common = set(self.providers) & set(other.providers)
if not common:
return True
# This ensures that some provider in other COULD satisfy the
# vpkg constraints on self.
result = {}
for name in common:
crossed = _cross_provider_maps(self.providers[name], other.providers[name])
if crossed:
result[name] = crossed
return all(c in result for c in common)
def __eq__(self, other):
return self.providers == other.providers

View file

@ -1501,6 +1501,17 @@ def package_provider_rules(self, pkg):
)
self.gen.newline()
for when, sets_of_virtuals in pkg.provided_together.items():
condition_id = self.condition(
when, name=pkg.name, msg="Virtuals are provided together"
)
for set_id, virtuals_together in enumerate(sets_of_virtuals):
for name in virtuals_together:
self.gen.fact(
fn.pkg_fact(pkg.name, fn.provided_together(condition_id, set_id, name))
)
self.gen.newline()
def package_dependencies_rules(self, pkg):
"""Translate 'depends_on' directives into ASP logic."""
for _, conditions in sorted(pkg.dependencies.items()):
@ -1902,6 +1913,15 @@ class Body:
clauses.append(fn.attr("package_hash", spec.name, spec._package_hash))
clauses.append(fn.attr("hash", spec.name, spec.dag_hash()))
edges = spec.edges_from_dependents()
virtuals = [x for x in itertools.chain.from_iterable([edge.virtuals for edge in edges])]
if not body:
for virtual in virtuals:
clauses.append(fn.attr("provider_set", spec.name, virtual))
else:
for virtual in virtuals:
clauses.append(fn.attr("virtual_on_incoming_edges", spec.name, virtual))
# add all clauses from dependencies
if transitive:
# TODO: Eventually distinguish 2 deps on the same pkg (build and link)
@ -3124,10 +3144,11 @@ def __init__(self, provided, conflicts):
msg = (
"Spack concretizer internal error. Please submit a bug report and include the "
"command, environment if applicable and the following error message."
f"\n {provided} is unsatisfiable, errors are:"
f"\n {provided} is unsatisfiable"
)
msg += "".join([f"\n {conflict}" for conflict in conflicts])
if conflicts:
msg += ", errors are:" + "".join([f"\n {conflict}" for conflict in conflicts])
super(spack.error.UnsatisfiableSpecError, self).__init__(msg)

View file

@ -113,10 +113,11 @@ unification_set(SetID, VirtualNode)
multiple_nodes_attribute("node_flag_source").
multiple_nodes_attribute("depends_on").
multiple_nodes_attribute("virtual_on_edge").
multiple_nodes_attribute("provider_set").
% Map constraint on the literal ID to facts on the node
attr(Name, node(min_dupe_id, A1)) :- literal(LiteralID, Name, A1), solve_literal(LiteralID).
attr(Name, node(min_dupe_id, A1), A2) :- literal(LiteralID, Name, A1, A2), solve_literal(LiteralID).
attr(Name, node(min_dupe_id, A1), A2) :- literal(LiteralID, Name, A1, A2), solve_literal(LiteralID), not multiple_nodes_attribute(Name).
attr(Name, node(min_dupe_id, A1), A2, A3) :- literal(LiteralID, Name, A1, A2, A3), solve_literal(LiteralID), not multiple_nodes_attribute(Name).
attr(Name, node(min_dupe_id, A1), A2, A3, A4) :- literal(LiteralID, Name, A1, A2, A3, A4), solve_literal(LiteralID).
@ -124,6 +125,10 @@ attr(Name, node(min_dupe_id, A1), A2, A3, A4) :- literal(LiteralID, Name, A1, A2
attr("node_flag_source", node(min_dupe_id, A1), A2, node(min_dupe_id, A3)) :- literal(LiteralID, "node_flag_source", A1, A2, A3), solve_literal(LiteralID).
attr("depends_on", node(min_dupe_id, A1), node(min_dupe_id, A2), A3) :- literal(LiteralID, "depends_on", A1, A2, A3), solve_literal(LiteralID).
attr("virtual_node", node(min_dupe_id, Virtual)) :- literal(LiteralID, "provider_set", _, Virtual), solve_literal(LiteralID).
attr("provider_set", node(min_dupe_id, Provider), node(min_dupe_id, Virtual)) :- literal(LiteralID, "provider_set", Provider, Virtual), solve_literal(LiteralID).
provider(node(min_dupe_id, Provider), node(min_dupe_id, Virtual)) :- literal(LiteralID, "provider_set", Provider, Virtual), solve_literal(LiteralID).
% Discriminate between "roots" that have been explicitly requested, and roots that are deduced from "virtual roots"
explicitly_requested_root(node(min_dupe_id, A1)) :- literal(LiteralID, "root", A1), solve_literal(LiteralID).
@ -476,6 +481,19 @@ error(1, Msg)
% Virtual dependencies
%-----------------------------------------------------------------------------
% If the provider is set from the command line, its weight is 0
possible_provider_weight(ProviderNode, VirtualNode, 0, "Set on the command line")
:- attr("provider_set", ProviderNode, VirtualNode).
% Enforces all virtuals to be provided, if multiple of them are provided together
error(100, "Package '{0}' needs to provide both '{1}' and '{2}' together, but provides only '{1}'", Package, Virtual1, Virtual2)
:- condition_holds(ID, node(X, Package)),
pkg_fact(Package, provided_together(ID, SetID, Virtual1)),
pkg_fact(Package, provided_together(ID, SetID, Virtual2)),
Virtual1 != Virtual2,
attr("virtual_on_incoming_edges", node(X, Package), Virtual1),
not attr("virtual_on_incoming_edges", node(X, Package), Virtual2).
% if a package depends on a virtual, it's not external and we have a
% provider for that virtual then it depends on the provider
node_depends_on_virtual(PackageNode, Virtual, Type)
@ -494,6 +512,9 @@ attr("virtual_on_edge", PackageNode, ProviderNode, Virtual)
provider(ProviderNode, node(_, Virtual)),
not external(PackageNode).
attr("virtual_on_incoming_edges", ProviderNode, Virtual)
:- attr("virtual_on_edge", _, ProviderNode, Virtual).
% dependencies on virtuals also imply that the virtual is a virtual node
1 { attr("virtual_node", node(0..X-1, Virtual)) : max_dupes(Virtual, X) }
:- node_depends_on_virtual(PackageNode, Virtual).
@ -501,6 +522,10 @@ attr("virtual_on_edge", PackageNode, ProviderNode, Virtual)
% If there's a virtual node, we must select one and only one provider.
% The provider must be selected among the possible providers.
error(100, "'{0}' cannot be a provider for the '{1}' virtual", Package, Virtual)
:- attr("provider_set", node(min_dupe_id, Package), node(min_dupe_id, Virtual)),
not virtual_condition_holds( node(min_dupe_id, Package), Virtual).
error(100, "Cannot find valid provider for virtual {0}", Virtual)
:- attr("virtual_node", node(X, Virtual)),
not provider(_, node(X, Virtual)).
@ -521,20 +546,6 @@ attr("root", PackageNode) :- attr("virtual_root", VirtualNode), provider(Package
attr("node", PackageNode), virtual_condition_holds(PackageNode, Virtual) } 1
:- attr("virtual_node", node(X, Virtual)).
% If a spec is selected as a provider, it is for all the virtual it could provide
:- provider(PackageNode, node(X, Virtual1)),
virtual_condition_holds(PackageNode, Virtual2),
Virtual2 != Virtual1,
unification_set(SetID, PackageNode),
unification_set(SetID, node(X, Virtual2)),
not provider(PackageNode, node(X, Virtual2)).
% If a spec is a dependency, and could provide a needed virtual, it must be a provider
:- node_depends_on_virtual(PackageNode, Virtual),
depends_on(PackageNode, PossibleProviderNode),
virtual_condition_holds(PossibleProviderNode, Virtual),
not attr("virtual_on_edge", PackageNode, PossibleProviderNode, Virtual).
% The provider provides the virtual if some provider condition holds.
virtual_condition_holds(node(ProviderID, Provider), Virtual) :- virtual_condition_holds(ID, node(ProviderID, Provider), Virtual).
virtual_condition_holds(ID, node(ProviderID, Provider), Virtual) :-
@ -561,6 +572,8 @@ do_not_impose(EffectID, node(X, Package))
not virtual_condition_holds(PackageNode, Virtual),
internal_error("Virtual when provides not respected").
#defined provided_together/4.
%-----------------------------------------------------------------------------
% Virtual dependency weights
%-----------------------------------------------------------------------------

View file

@ -59,7 +59,7 @@
import re
import socket
import warnings
from typing import Any, Callable, Dict, List, Optional, Tuple, Union
from typing import Any, Callable, Dict, List, Optional, Set, Tuple, Union
import llnl.path
import llnl.string
@ -1464,6 +1464,26 @@ def edges_to_dependencies(self, name=None, depflag: dt.DepFlag = dt.ALL):
"""
return [d for d in self._dependencies.select(child=name, depflag=depflag)]
@property
def edge_attributes(self) -> str:
"""Helper method to print edge attributes in spec literals"""
edges = self.edges_from_dependents()
if not edges:
return ""
union = DependencySpec(parent=Spec(), spec=self, depflag=0, virtuals=())
for edge in edges:
union.update_deptypes(edge.depflag)
union.update_virtuals(edge.virtuals)
deptypes_str = (
f"deptypes={','.join(dt.flag_to_tuple(union.depflag))}" if union.depflag else ""
)
virtuals_str = f"virtuals={','.join(union.virtuals)}" if union.virtuals else ""
if not deptypes_str and not virtuals_str:
return ""
result = f"{deptypes_str} {virtuals_str}".strip()
return f"[{result}]"
def dependencies(self, name=None, deptype: Union[dt.DepTypes, dt.DepFlag] = dt.ALL):
"""Return a list of direct dependencies (nodes in the DAG).
@ -3688,8 +3708,15 @@ def intersects(self, other: Union[str, "Spec"], deps: bool = True) -> bool:
if other.concrete and self.concrete:
return self.dag_hash() == other.dag_hash()
self_hash = self.dag_hash() if self.concrete else self.abstract_hash
other_hash = other.dag_hash() if other.concrete else other.abstract_hash
elif self.concrete:
return self.satisfies(other)
elif other.concrete:
return other.satisfies(self)
# From here we know both self and other are not concrete
self_hash = self.abstract_hash
other_hash = other.abstract_hash
if (
self_hash
@ -3778,10 +3805,6 @@ def _intersects_dependencies(self, other):
repository=spack.repo.PATH, specs=other.traverse(), restrict=True
)
# This handles cases where there are already providers for both vpkgs
if not self_index.satisfies(other_index):
return False
# These two loops handle cases where there is an overly restrictive
# vpkg in one spec for a provider in the other (e.g., mpi@3: is not
# compatible with mpich2)
@ -3879,7 +3902,46 @@ def satisfies(self, other: Union[str, "Spec"], deps: bool = True) -> bool:
return False
# If we arrived here, then rhs is abstract. At the moment we don't care about the edge
# structure of an abstract DAG - hence the deps=False parameter.
# structure of an abstract DAG, so we check if any edge could satisfy the properties
# we ask for.
lhs_edges: Dict[str, Set[DependencySpec]] = collections.defaultdict(set)
for rhs_edge in other.traverse_edges(root=False, cover="edges"):
# If we are checking for ^mpi we need to verify if there is any edge
if rhs_edge.spec.virtual:
rhs_edge.update_virtuals(virtuals=(rhs_edge.spec.name,))
if not rhs_edge.virtuals:
continue
if not lhs_edges:
# Construct a map of the link/run subDAG + direct "build" edges,
# keyed by dependency name
for lhs_edge in self.traverse_edges(
root=False, cover="edges", deptype=("link", "run")
):
lhs_edges[lhs_edge.spec.name].add(lhs_edge)
for virtual_name in lhs_edge.virtuals:
lhs_edges[virtual_name].add(lhs_edge)
build_edges = self.edges_to_dependencies(depflag=dt.BUILD)
for lhs_edge in build_edges:
lhs_edges[lhs_edge.spec.name].add(lhs_edge)
for virtual_name in lhs_edge.virtuals:
lhs_edges[virtual_name].add(lhs_edge)
# We don't have edges to this dependency
current_dependency_name = rhs_edge.spec.name
if current_dependency_name not in lhs_edges:
return False
for virtual in rhs_edge.virtuals:
has_virtual = any(
virtual in edge.virtuals for edge in lhs_edges[current_dependency_name]
)
if not has_virtual:
return False
# Edges have been checked above already, hence deps=False
return all(
any(lhs.satisfies(rhs, deps=False) for lhs in self.traverse(root=False))
for rhs in other.traverse(root=False)
@ -4081,9 +4143,7 @@ def __getitem__(self, name):
"""
query_parameters = name.split(":")
if len(query_parameters) > 2:
msg = "key has more than one ':' symbol."
msg += " At most one is admitted."
raise KeyError(msg)
raise KeyError("key has more than one ':' symbol. At most one is admitted.")
name, query_parameters = query_parameters[0], query_parameters[1:]
if query_parameters:
@ -4108,11 +4168,17 @@ def __getitem__(self, name):
itertools.chain(
# Regular specs
(x for x in order() if x.name == name),
(
x
for x in order()
if (not x.virtual)
and any(name in edge.virtuals for edge in x.edges_from_dependents())
),
(x for x in order() if (not x.virtual) and x.package.provides(name)),
)
)
except StopIteration:
raise KeyError("No spec with name %s in %s" % (name, self))
raise KeyError(f"No spec with name {name} in {self}")
if self._concrete:
return SpecBuildInterface(value, name, query_parameters)
@ -4490,17 +4556,27 @@ def format_path(
return str(path_ctor(*output_path_components))
def __str__(self):
sorted_nodes = [self] + sorted(
root_str = [self.format()]
sorted_dependencies = sorted(
self.traverse(root=False), key=lambda x: (x.name, x.abstract_hash)
)
return " ^".join(d.format() for d in sorted_nodes).strip()
sorted_dependencies = [
d.format("{edge_attributes} " + DEFAULT_FORMAT) for d in sorted_dependencies
]
spec_str = " ^".join(root_str + sorted_dependencies)
return spec_str.strip()
@property
def colored_str(self):
sorted_nodes = [self] + sorted(
root_str = [self.cformat()]
sorted_dependencies = sorted(
self.traverse(root=False), key=lambda x: (x.name, x.abstract_hash)
)
return " ^".join(d.cformat() for d in sorted_nodes).strip()
sorted_dependencies = [
d.cformat("{edge_attributes} " + DISPLAY_FORMAT) for d in sorted_dependencies
]
spec_str = " ^".join(root_str + sorted_dependencies)
return spec_str.strip()
def install_status(self):
"""Helper for tree to print DB install status."""

View file

@ -642,3 +642,13 @@ def test_effective_deptype_run_environment(default_mock_concretization):
for spec, effective_type in spack.build_environment.effective_deptypes(s, context=Context.RUN):
assert effective_type & expected_flags.pop(spec.name) == effective_type
assert not expected_flags, f"Missing {expected_flags.keys()} from effective_deptypes"
def test_monkey_patching_works_across_virtual(default_mock_concretization):
"""Assert that a monkeypatched attribute is found regardless we access through the
real name or the virtual name.
"""
s = default_mock_concretization("mpileaks ^mpich")
s["mpich"].foo = "foo"
assert s["mpich"].foo == "foo"
assert s["mpi"].foo == "foo"

View file

@ -14,7 +14,14 @@
dependencies = SpackCommand("dependencies")
mpis = ["low-priority-provider", "mpich", "mpich2", "multi-provider-mpi", "zmpi"]
mpis = [
"intel-parallel-studio",
"low-priority-provider",
"mpich",
"mpich2",
"multi-provider-mpi",
"zmpi",
]
mpi_deps = ["fake"]

View file

@ -2461,8 +2461,12 @@ def test_concretize_user_specs_together():
e.remove("mpich")
e.add("mpich2")
exc_cls = spack.error.SpackError
if spack.config.get("config:concretizer") == "clingo":
exc_cls = spack.error.UnsatisfiableSpecError
# Concretizing without invalidating the concrete spec for mpileaks fails
with pytest.raises(spack.error.UnsatisfiableSpecError):
with pytest.raises(exc_cls):
e.concretize()
e.concretize(force=True)
@ -2494,9 +2498,12 @@ def test_duplicate_packages_raise_when_concretizing_together():
e.add("mpileaks~opt")
e.add("mpich")
with pytest.raises(
spack.error.UnsatisfiableSpecError, match=r"You could consider setting `concretizer:unify`"
):
exc_cls, match = spack.error.SpackError, None
if spack.config.get("config:concretizer") == "clingo":
exc_cls = spack.error.UnsatisfiableSpecError
match = r"You could consider setting `concretizer:unify`"
with pytest.raises(exc_cls, match=match):
e.concretize()

View file

@ -1838,7 +1838,8 @@ def test_installed_specs_disregard_conflicts(self, mutable_database, monkeypatch
# If we concretize with --reuse it is not, since "mpich~debug" was already installed
with spack.config.override("concretizer:reuse", True):
s = Spec("mpich").concretized()
assert s.satisfies("~debug")
assert s.installed
assert s.satisfies("~debug"), s
@pytest.mark.regression("32471")
@pytest.mark.only_clingo("Use case not supported by the original concretizer")
@ -2132,14 +2133,16 @@ def test_reuse_python_from_cli_and_extension_from_db(self, mutable_database):
@pytest.fixture()
def duplicates_test_repository():
builder_test_path = os.path.join(spack.paths.repos_path, "duplicates.test")
with spack.repo.use_repositories(builder_test_path) as mock_repo:
repository_path = os.path.join(spack.paths.repos_path, "duplicates.test")
with spack.repo.use_repositories(repository_path) as mock_repo:
yield mock_repo
@pytest.mark.usefixtures("mutable_config", "duplicates_test_repository")
@pytest.mark.only_clingo("Not supported by the original concretizer")
class TestConcretizeSeparately:
"""Collects test on separate concretization"""
@pytest.mark.parametrize("strategy", ["minimal", "full"])
def test_two_gmake(self, strategy):
"""Tests that we can concretize a spec with nodes using the same build
@ -2320,3 +2323,40 @@ def test_adding_specs(self, input_specs, default_mock_concretization):
assert node == container[node.dag_hash()]
assert node.dag_hash() in container
assert node is not container[node.dag_hash()]
@pytest.fixture()
def edges_test_repository():
repository_path = os.path.join(spack.paths.repos_path, "edges.test")
with spack.repo.use_repositories(repository_path) as mock_repo:
yield mock_repo
@pytest.mark.usefixtures("mutable_config", "edges_test_repository")
@pytest.mark.only_clingo("Edge properties not supported by the original concretizer")
class TestConcretizeEdges:
"""Collects tests on edge properties"""
@pytest.mark.parametrize(
"spec_str,expected_satisfies,expected_not_satisfies",
[
("conditional-edge", ["^zlib@2.0"], ["^zlib-api"]),
("conditional-edge~foo", ["^zlib@2.0"], ["^zlib-api"]),
(
"conditional-edge+foo",
["^zlib@1.0", "^zlib-api", "^[virtuals=zlib-api] zlib"],
["^[virtuals=mpi] zlib"],
),
],
)
def test_condition_triggered_by_edge_property(
self, spec_str, expected_satisfies, expected_not_satisfies
):
"""Tests that we can enforce constraints based on edge attributes"""
s = Spec(spec_str).concretized()
for expected in expected_satisfies:
assert s.satisfies(expected), str(expected)
for not_expected in expected_not_satisfies:
assert not s.satisfies(not_expected), str(not_expected)

View file

@ -37,6 +37,7 @@ def mpileaks_possible_deps(mock_packages, mpi_names):
"low-priority-provider": set(),
"dyninst": set(["libdwarf", "libelf"]),
"fake": set(),
"intel-parallel-studio": set(),
"libdwarf": set(["libelf"]),
"libelf": set(),
"mpich": set(),

View file

@ -532,6 +532,7 @@ def test_normalize_mpileaks(self):
assert not spec.eq_dag(expected_normalized, deptypes=True)
assert not spec.eq_dag(non_unique_nodes, deptypes=True)
@pytest.mark.xfail(reason="String representation changed")
def test_normalize_with_virtual_package(self):
spec = Spec("mpileaks ^mpi ^libelf@1.8.11 ^libdwarf")
spec.normalize()

View file

@ -294,13 +294,10 @@ def test_concrete_specs_which_satisfies_abstract(self, lhs, rhs, default_mock_co
("foo@4.0%pgi@4.5", "@1:3%pgi@4.4:4.6"),
("builtin.mock.mpich", "builtin.mpich"),
("mpileaks ^builtin.mock.mpich", "^builtin.mpich"),
("mpileaks^mpich", "^zmpi"),
("mpileaks^zmpi", "^mpich"),
("mpileaks^mpich@1.2", "^mpich@2.0"),
("mpileaks^mpich@4.0^callpath@1.5", "^mpich@1:3^callpath@1.4:1.6"),
("mpileaks^mpich@2.0^callpath@1.7", "^mpich@1:3^callpath@1.4:1.6"),
("mpileaks^mpich@4.0^callpath@1.7", "^mpich@1:3^callpath@1.4:1.6"),
("mpileaks^mpich", "^zmpi"),
("mpileaks^mpi@3", "^mpi@1.2:1.6"),
("mpileaks^mpi@3:", "^mpich2@1.4"),
("mpileaks^mpi@3:", "^mpich2"),
@ -338,30 +335,30 @@ def test_constraining_abstract_specs_with_empty_intersection(self, lhs, rhs):
rhs.constrain(lhs)
@pytest.mark.parametrize(
"lhs,rhs,intersection_expected",
"lhs,rhs",
[
("mpich", "mpich +foo", True),
("mpich", "mpich~foo", True),
("mpich", "mpich foo=1", True),
("mpich", "mpich++foo", True),
("mpich", "mpich~~foo", True),
("mpich", "mpich foo==1", True),
("mpich", "mpich +foo"),
("mpich", "mpich~foo"),
("mpich", "mpich foo=1"),
("mpich", "mpich++foo"),
("mpich", "mpich~~foo"),
("mpich", "mpich foo==1"),
# Flags semantics is currently different from other variant
("mpich", 'mpich cflags="-O3"', True),
("mpich cflags=-O3", 'mpich cflags="-O3 -Ofast"', False),
("mpich cflags=-O2", 'mpich cflags="-O3"', False),
("multivalue-variant foo=bar", "multivalue-variant +foo", False),
("multivalue-variant foo=bar", "multivalue-variant ~foo", False),
("multivalue-variant fee=bar", "multivalue-variant fee=baz", False),
("mpich", 'mpich cflags="-O3"'),
("mpich cflags=-O3", 'mpich cflags="-O3 -Ofast"'),
("mpich cflags=-O2", 'mpich cflags="-O3"'),
("multivalue-variant foo=bar", "multivalue-variant +foo"),
("multivalue-variant foo=bar", "multivalue-variant ~foo"),
("multivalue-variant fee=bar", "multivalue-variant fee=baz"),
],
)
def test_concrete_specs_which_do_not_satisfy_abstract(
self, lhs, rhs, intersection_expected, default_mock_concretization
self, lhs, rhs, default_mock_concretization
):
lhs, rhs = default_mock_concretization(lhs), Spec(rhs)
assert lhs.intersects(rhs) is intersection_expected
assert rhs.intersects(lhs) is intersection_expected
assert lhs.intersects(rhs) is False
assert rhs.intersects(lhs) is False
assert not lhs.satisfies(rhs)
assert not rhs.satisfies(lhs)
@ -483,10 +480,14 @@ def test_intersects_virtual(self):
assert Spec("mpich2").intersects(Spec("mpi"))
assert Spec("zmpi").intersects(Spec("mpi"))
def test_intersects_virtual_dep_with_virtual_constraint(self):
def test_intersects_virtual_providers(self):
"""Tests that we can always intersect virtual providers from abstract specs.
Concretization will give meaning to virtuals, and eventually forbid certain
configurations.
"""
assert Spec("netlib-lapack ^openblas").intersects("netlib-lapack ^openblas")
assert not Spec("netlib-lapack ^netlib-blas").intersects("netlib-lapack ^openblas")
assert not Spec("netlib-lapack ^openblas").intersects("netlib-lapack ^netlib-blas")
assert Spec("netlib-lapack ^netlib-blas").intersects("netlib-lapack ^openblas")
assert Spec("netlib-lapack ^openblas").intersects("netlib-lapack ^netlib-blas")
assert Spec("netlib-lapack ^netlib-blas").intersects("netlib-lapack ^netlib-blas")
def test_intersectable_concrete_specs_must_have_the_same_hash(self):
@ -1006,6 +1007,103 @@ def test_spec_override(self):
assert new_spec.compiler_flags["cflags"] == ["-O2"]
assert new_spec.compiler_flags["cxxflags"] == ["-O1"]
@pytest.mark.parametrize(
"spec_str,specs_in_dag",
[
("hdf5 ^[virtuals=mpi] mpich", [("mpich", "mpich"), ("mpi", "mpich")]),
# Try different combinations with packages that provides a
# disjoint set of virtual dependencies
(
"netlib-scalapack ^mpich ^openblas-with-lapack",
[
("mpi", "mpich"),
("lapack", "openblas-with-lapack"),
("blas", "openblas-with-lapack"),
],
),
(
"netlib-scalapack ^[virtuals=mpi] mpich ^openblas-with-lapack",
[
("mpi", "mpich"),
("lapack", "openblas-with-lapack"),
("blas", "openblas-with-lapack"),
],
),
(
"netlib-scalapack ^mpich ^[virtuals=lapack] openblas-with-lapack",
[
("mpi", "mpich"),
("lapack", "openblas-with-lapack"),
("blas", "openblas-with-lapack"),
],
),
(
"netlib-scalapack ^[virtuals=mpi] mpich ^[virtuals=lapack] openblas-with-lapack",
[
("mpi", "mpich"),
("lapack", "openblas-with-lapack"),
("blas", "openblas-with-lapack"),
],
),
# Test that we can mix dependencies that provide an overlapping
# sets of virtual dependencies
(
"netlib-scalapack ^[virtuals=mpi] intel-parallel-studio "
"^[virtuals=lapack] openblas-with-lapack",
[
("mpi", "intel-parallel-studio"),
("lapack", "openblas-with-lapack"),
("blas", "openblas-with-lapack"),
],
),
(
"netlib-scalapack ^[virtuals=mpi] intel-parallel-studio ^openblas-with-lapack",
[
("mpi", "intel-parallel-studio"),
("lapack", "openblas-with-lapack"),
("blas", "openblas-with-lapack"),
],
),
(
"netlib-scalapack ^intel-parallel-studio ^[virtuals=lapack] openblas-with-lapack",
[
("mpi", "intel-parallel-studio"),
("lapack", "openblas-with-lapack"),
("blas", "openblas-with-lapack"),
],
),
# Test that we can bind more than one virtual to the same provider
(
"netlib-scalapack ^[virtuals=lapack,blas] openblas-with-lapack",
[("lapack", "openblas-with-lapack"), ("blas", "openblas-with-lapack")],
),
],
)
def test_virtual_deps_bindings(self, default_mock_concretization, spec_str, specs_in_dag):
if spack.config.get("config:concretizer") == "original":
pytest.skip("Use case not supported by the original concretizer")
s = default_mock_concretization(spec_str)
for label, expected in specs_in_dag:
assert label in s
assert s[label].satisfies(expected), label
@pytest.mark.parametrize(
"spec_str",
[
# openblas-with-lapack needs to provide blas and lapack together
"netlib-scalapack ^[virtuals=blas] intel-parallel-studio ^openblas-with-lapack",
# intel-* provides blas and lapack together, openblas can provide blas only
"netlib-scalapack ^[virtuals=lapack] intel-parallel-studio ^openblas",
],
)
def test_unsatisfiable_virtual_deps_bindings(self, spec_str):
if spack.config.get("config:concretizer") == "original":
pytest.skip("Use case not supported by the original concretizer")
with pytest.raises(spack.solver.asp.UnsatisfiableSpecError):
Spec(spec_str).concretized()
@pytest.mark.parametrize(
"spec_str,format_str,expected",

View file

@ -530,6 +530,26 @@ def _specfile_for(spec_str, filename):
[Token(TokenType.VERSION, value="@:0.4"), Token(TokenType.COMPILER, value="% nvhpc")],
"@:0.4%nvhpc",
),
(
"^[virtuals=mpi] openmpi",
[
Token(TokenType.START_EDGE_PROPERTIES, value="^["),
Token(TokenType.KEY_VALUE_PAIR, value="virtuals=mpi"),
Token(TokenType.END_EDGE_PROPERTIES, value="]"),
Token(TokenType.UNQUALIFIED_PACKAGE_NAME, value="openmpi"),
],
"^[virtuals=mpi] openmpi",
),
(
"^[deptypes=link,build] zlib",
[
Token(TokenType.START_EDGE_PROPERTIES, value="^["),
Token(TokenType.KEY_VALUE_PAIR, value="deptypes=link,build"),
Token(TokenType.END_EDGE_PROPERTIES, value="]"),
Token(TokenType.UNQUALIFIED_PACKAGE_NAME, value="zlib"),
],
"^[deptypes=build,link] zlib",
),
(
"zlib@git.foo/bar",
[
@ -923,6 +943,9 @@ def test_disambiguate_hash_by_spec(spec1, spec2, constraint, mock_packages, monk
("x platform=test platform=test", spack.spec.DuplicateArchitectureError),
("x os=fe platform=test target=fe os=fe", spack.spec.DuplicateArchitectureError),
("x target=be platform=test os=be os=fe", spack.spec.DuplicateArchitectureError),
("^[@foo] zlib", spack.parser.SpecParsingError),
# TODO: Remove this as soon as use variants are added and we can parse custom attributes
("^[foo=bar] zlib", spack.parser.SpecParsingError),
],
)
def test_error_conditions(text, exc_cls):

View file

@ -0,0 +1,19 @@
# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack.package import *
class IntelParallelStudio(Package):
"""Intel Parallel Studio."""
homepage = "https://software.intel.com/en-us/intel-parallel-studio-xe"
url = "http://tec/16225/parallel_studio_xe_2020_cluster_edition.tgz"
version("cluster.2020.0", sha256="b1d3e3e425b2e44a06760ff173104bdf")
provides("mpi@:3")
provides("scalapack")
provides("blas", "lapack")

View file

@ -14,5 +14,5 @@ class LowPriorityProvider(Package):
version("1.0", md5="0123456789abcdef0123456789abcdef")
provides("lapack")
provides("mpi")
# A low priority provider that provides both these specs together
provides("mpi", "lapack")

View file

@ -19,4 +19,4 @@ class ManyVirtualConsumer(Package):
# This directive is an example of imposing a constraint on a
# dependency is that dependency is in the DAG. This pattern
# is mainly used with virtual providers.
depends_on("low-priority-provider@1.0", when="^low-priority-provider")
depends_on("low-priority-provider@1.0", when="^[virtuals=mpi,lapack] low-priority-provider")

View file

@ -0,0 +1,20 @@
# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack.package import *
class NetlibScalapack(Package):
homepage = "http://www.netlib.org/scalapack/"
url = "http://www.netlib.org/scalapack/scalapack-2.1.0.tgz"
version("2.1.0", "b1d3e3e425b2e44a06760ff173104bdf")
provides("scalapack")
depends_on("mpi")
depends_on("lapack")
depends_on("blas")

View file

@ -14,5 +14,4 @@ class OpenblasWithLapack(Package):
version("0.2.15", md5="b1190f3d3471685f17cfd1ec1d252ac9")
provides("lapack")
provides("blas")
provides("lapack", "blas")

View file

@ -28,8 +28,7 @@ class LuaLuajitOpenresty(LuaImplPackage):
description="add symlinks to make lua-luajit a drop-in lua replacement",
)
provides("lua-lang@5.1", when="+lualinks")
provides("luajit")
provides("luajit", "lua-lang@5.1", when="+lualinks")
lua_version_override = "5.1"
@run_after("install")

View file

@ -33,8 +33,7 @@ class LuaLuajit(LuaImplPackage):
description="add symlinks to make lua-luajit a drop-in lua replacement",
)
provides("lua-lang@5.1", when="+lualinks")
provides("luajit")
provides("luajit", "lua-lang@5.1", when="+lualinks")
lua_version_override = "5.1"
conflicts("platform=darwin", msg="luajit not supported on MacOS, see lua-luajit-openresty")

View file

@ -88,8 +88,7 @@ class Openblas(CMakePackage, MakefilePackage):
)
# virtual dependency
provides("blas")
provides("lapack")
provides("blas", "lapack")
provides("lapack@3.9.1:", when="@0.3.15:")
provides("lapack@3.7.0", when="@0.2.20")

View file

@ -0,0 +1,24 @@
# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack.package import *
class ConditionalEdge(Package):
"""This package has a variant that triggers a condition only if a required dependency is
providing a virtual.
"""
homepage = "http://www.example.com"
url = "http://www.example.com/a-1.0.tar.gz"
version("2.0", md5="abcdef0123456789abcdef0123456789")
version("1.0", md5="0123456789abcdef0123456789abcdef")
variant("foo", default=False, description="Just a regular foo")
# zlib is a real package, providing zlib-api
depends_on("zlib")
depends_on("zlib-api", when="+foo")
depends_on("zlib@1.0", when="^[virtuals=zlib-api] zlib")

View file

@ -0,0 +1,19 @@
# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack.package import *
class Zlib(Package):
"""This package has a variant that triggers a condition only if a required dependency is
providing a virtual.
"""
homepage = "http://www.example.com"
url = "http://www.example.com/a-1.0.tar.gz"
version("2.0", md5="abcdef0123456789abcdef0123456789")
version("1.0", md5="0123456789abcdef0123456789abcdef")
provides("zlib-api")

View file

@ -0,0 +1,2 @@
repo:
namespace: edges.test