Massimiliano Culpo e6e109cbc5 ASP-based solver: reduce input facts and add heuristic (#28848) ... * Remove node_target_satisfies/3 in favor of target_satisfies/2 When emitting input facts we don't need to couple target with packages, but we can emit fewer facts independently and let the grounder combine them. * Remove compiler_version_satisfies/4 in favor of compiler_version_satisfies/3 When emitting input facts we don't need to couple compilers with packages, but we can emit fewer facts independently and let the grounder combine them. * Introduce heuristic in the ASP-program With heuristic we can drive clingo to make better initial guesses, which lead to fewer choices and conflicts in the overall solve		2022-02-10 11:37:10 -08:00
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spack	ASP-based solver: reduce input facts and add heuristic (#28848)	2022-02-10 11:37:10 -08:00