Todd Gamblin 5185ed1d28 concretizer: optimize microarchitectures, constrained by compiler support ... Weight microarchitectures and prefers more rercent ones. Also disallow nodes where the compiler does not support the selected target. We should revisit this at some point as it seems like if I play around with the compiler support for different architectures, the solver runs very slowly. See notes in comments -- the bad case was gcc supporting broadwell and skylake with clang maxing out at haswell.		2020-11-17 10:04:13 -08:00
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spack	concretizer: optimize microarchitectures, constrained by compiler support	2020-11-17 10:04:13 -08:00