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concretizer: optimize loop on compiler version

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Similar to the optimization on platform
This commit is contained in:
Massimiliano Culpo 2020-12-21 23:38:04 +01:00 committed by Todd Gamblin
parent 635c6c29fa
commit cde6ffe369
2 changed files with 15 additions and 13 deletions
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1
lib/spack/spack/solver/asp.py
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@ -577,7 +577,6 @@ def available_compilers(self):
compiler_versions[compiler.name].add(compiler.version)
for compiler in sorted(compiler_versions):
self.gen.fact(fn.compiler(compiler))
for v in sorted(compiler_versions[compiler]):
self.gen.fact(fn.compiler_version(compiler, v))

27
lib/spack/spack/solver/concretize.lp
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@ -502,13 +502,20 @@ derive_target_from_parent(Parent, Package)
%-----------------------------------------------------------------------------
% Compiler semantics
%-----------------------------------------------------------------------------
compiler(Compiler) :- compiler_version(Compiler, _).
% one compiler per node
1 { node_compiler(Package, Compiler) : compiler(Compiler) } 1 :- node(Package).
% There must be only one compiler set per node. The compiler
% is chosen among available versions.
1 { node_compiler_version(Package, Compiler, Version)
: compiler_version(Compiler, Version) } 1 :- node(Package).
1 { compiler_weight(Package, Weight) : compiler_weight(Package, Weight) } 1
:- node(Package).
% Sometimes we just need to know the compiler and not the version
node_compiler(Package, Compiler) :- node_compiler_version(Package, Compiler, _).
% We can't have a compiler be enforced and select the version from another compiler
:- node_compiler(Package, Compiler1),
node_compiler_version(Package, Compiler2, _),
Compiler1 != Compiler2.
% define node_compiler_version_satisfies/3 from node_compiler_version_satisfies/4
% version_satisfies implies that exactly one of the satisfying versions
@ -519,6 +526,7 @@ derive_target_from_parent(Parent, Package)
node_compiler_version_satisfies(Package, Compiler, Constraint)
:- node_compiler_version(Package, Compiler, Version),
node_compiler_version_satisfies(Package, Compiler, Constraint, Version).
#defined node_compiler_version_satisfies/4.
% If the compiler version was set from the command line,
@ -566,17 +574,14 @@ compiler_version_match(Package, 1)
% compilers weighted by preference according to packages.yaml
compiler_weight(Package, Weight)
:- node_compiler(Package, Compiler),
node_compiler_version(Package, Compiler, V),
:- node_compiler_version(Package, Compiler, V),
node_compiler_preference(Package, Compiler, V, Weight).
compiler_weight(Package, Weight)
:- node_compiler(Package, Compiler),
node_compiler_version(Package, Compiler, V),
:- node_compiler_version(Package, Compiler, V),
not node_compiler_preference(Package, Compiler, V, _),
default_compiler_preference(Compiler, V, Weight).
compiler_weight(Package, 100)
:- node_compiler(Package, Compiler),
node_compiler_version(Package, Compiler, Version),
:- node_compiler_version(Package, Compiler, Version),
not node_compiler_preference(Package, Compiler, Version, _),
not default_compiler_preference(Compiler, Version, _).
@ -610,7 +615,6 @@ node_flag_source(Dependency, Q)
node_flag(Package, FlagType, Flag)
:- not node_flag_set(Package),
compiler_version_flag(Compiler, Version, FlagType, Flag),
node_compiler(Package, Compiler),
node_compiler_version(Package, Compiler, Version),
flag_type(FlagType),
compiler(Compiler),
@ -619,7 +623,6 @@ node_flag(Package, FlagType, Flag)
node_flag_compiler_default(Package)
:- not node_flag_set(Package),
compiler_version_flag(Compiler, Version, FlagType, Flag),
node_compiler(Package, Compiler),
node_compiler_version(Package, Compiler, Version),
flag_type(FlagType),
compiler(Compiler),