diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/spack/spack/solver/asp.py | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/lib/spack/spack/solver/asp.py b/lib/spack/spack/solver/asp.py index 2d4598bd32..36e4f79a4b 100644 --- a/lib/spack/spack/solver/asp.py +++ b/lib/spack/spack/solver/asp.py @@ -8,11 +8,8 @@ import collections import copy import itertools import os -import pkgutil import pprint -import re import sys -import tempfile import time import types from six import string_types @@ -26,7 +23,6 @@ except ImportError: import llnl.util.lang import llnl.util.tty as tty -import llnl.util.tty.color as color import spack import spack.architecture @@ -41,7 +37,6 @@ import spack.package import spack.package_prefs import spack.repo import spack.variant -from spack.util.executable import which from spack.version import ver @@ -233,182 +228,6 @@ class Result(object): *sorted(str(symbol) for symbol in core)) -class ClingoDriver(object): - def __init__(self): - self.clingo = which("clingo", required=True) - self.out = None - - def title(self, name, char): - self.out.write('\n') - self.out.write("%" + (char * 76)) - self.out.write('\n') - self.out.write("%% %s\n" % name) - self.out.write("%" + (char * 76)) - self.out.write('\n') - - def h1(self, name): - self.title(name, "=") - - def h2(self, name): - self.title(name, "-") - - def newline(self): - self.out.write('\n') - - def one_of(self, *args): - return AspOneOf(*args) - - def _and(self, *args): - return AspAnd(*args) - - def fact(self, head): - """ASP fact (a rule without a body).""" - self.out.write("%s.\n" % head) - - def rule(self, head, body): - """ASP rule (an implication).""" - rule_line = "%s :- %s.\n" % (head, body) - if len(rule_line) > _max_line: - rule_line = re.sub(r' \| ', "\n| ", rule_line) - self.out.write(rule_line) - - def before_setup(self): - """Must be called before program is generated.""" - # read the main ASP program from concrtize.lp - - def after_setup(self): - """Must be called after program is generated.""" - - def parse_model_functions(self, function_strings): - function_re = re.compile(r'(\w+)\(([^)]*)\)') - - # parse functions out of ASP output - functions = [] - for string in function_strings: - m = function_re.match(string) - name, arg_string = m.groups() - args = re.split(r'\s*,\s*', arg_string) - args = [s.strip('"') if s.startswith('"') else int(s) - for s in args] - functions.append((name, args)) - return functions - - def parse_competition_format(self, output, builder, result): - """Parse Clingo's competition output format, which gives one answer.""" - best_model_number = 0 - for line in output: - match = re.match(r"% Answer: (\d+)", line) - if match: - best_model_number = int(match.group(1)) - - if re.match("INCONSISTENT", line): - result.satisfiable = False - return - - if re.match("ANSWER", line): - result.satisfiable = True - - answer = next(output) - functions = [ - f.rstrip(".") for f in re.split(r"\s+", answer.strip()) - ] - function_tuples = self.parse_model_functions(functions) - specs = builder.build_specs(function_tuples) - - costs = re.split(r"\s+", next(output).strip()) - opt = [int(x) for x in costs[1:]] - - result.answers.append((opt, best_model_number, specs)) - - def solve(self, solver_setup, specs, dump=None, models=0, - timers=False, stats=False): - def colorize(string): - color.cprint(highlight(color.cescape(string))) - - timer = Timer() - with tempfile.TemporaryFile("w+") as program: - self.out = program - - concretize_lp = pkgutil.get_data('spack.solver', 'concretize.lp') - program.write(concretize_lp.decode("utf-8")) - - solver_setup.setup(self, specs) - - program.write('\n') - display_lp = pkgutil.get_data('spack.solver', 'display.lp') - program.write(display_lp.decode("utf-8")) - - timer.phase("generate") - - result = Result(program.read()) - program.seek(0) - - if dump and 'asp' in dump: - if sys.stdout.isatty(): - tty.msg('ASP program:') - - if dump == ['asp']: - print(result.asp) - return - else: - colorize(result.asp) - timer.phase("dump") - - with tempfile.TemporaryFile("w+") as output: - with tempfile.TemporaryFile() as warnings: - self.clingo( - '--models=%d' % models, - # 1 is "competition" format with just optimal answer - # 2 is JSON format with all explored answers - '--outf=1', - # Use a highest priority criteria-first optimization - # strategy, which means we'll explore recent - # versions, preferred packages first. This works - # well because Spack solutions are pretty easy to - # find -- there are just a lot of them. Without - # this, it can take a VERY long time to find good - # solutions, and a lot of models are explored. - '--opt-strategy=bb,hier', - input=program, - output=output, - error=warnings, - fail_on_error=False) - timer.phase("solve") - - warnings.seek(0) - result.warnings = warnings.read().decode("utf-8") - - # dump any warnings generated by the solver - if result.warnings: - if sys.stdout.isatty(): - tty.msg('Clingo gave the following warnings:') - colorize(result.warnings) - - output.seek(0) - result.output = output.read() - timer.phase("read") - - # dump the raw output of the solver - if dump and 'output' in dump: - if sys.stdout.isatty(): - tty.msg('Clingo output:') - print(result.output) - - if 'solutions' not in dump: - return - - output.seek(0) - builder = SpecBuilder(specs) - self.parse_competition_format(output, builder, result) - timer.phase("parse") - - if timers: - timer.write() - print() - - return result - - def _normalize(body): """Accept an AspAnd object or a single Symbol and return a list of symbols. @@ -1845,41 +1664,6 @@ class SpecBuilder(object): return self._specs -def highlight(string): - """Syntax highlighting for ASP programs""" - # variables - string = re.sub(r'\b([A-Z])\b', r'@y{\1}', string) - - # implications - string = re.sub(r':-', r'@*G{:-}', string) - - # final periods - pattern = re.compile(r'^([^%].*)\.$', flags=re.MULTILINE) - string = re.sub(pattern, r'\1@*G{.}', string) - - # directives - string = re.sub( - r'(#\w*)( (?:\w*)?)((?:/\d+)?)', r'@*B{\1}@c{\2}\3', string) - - # functions - string = re.sub(r'(\w[\w-]+)\(([^)]*)\)', r'@C{\1}@w{(}\2@w{)}', string) - - # comments - pattern = re.compile(r'(%.*)$', flags=re.MULTILINE) - string = re.sub(pattern, r'@w\1@.', string) - - # strings - string = re.sub(r'("[^"]*")', r'@m{\1}', string) - - # result - string = re.sub(r'\bUNSATISFIABLE', "@R{UNSATISFIABLE}", string) - string = re.sub(r'\bINCONSISTENT', "@R{INCONSISTENT}", string) - string = re.sub(r'\bSATISFIABLE', "@G{SATISFIABLE}", string) - string = re.sub(r'\bOPTIMUM FOUND', "@G{OPTIMUM FOUND}", string) - - return string - - def _develop_specs_from_env(spec): env = spack.environment.get_env(None, None) dev_info = env.dev_specs.get(spec.name, {}) if env else {} |