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# -------------------------------------------------------------------------
# This is the default spack configuration file.
#
# Settings here are versioned with Spack and are intended to provide
# sensible defaults out of the box. Spack maintainers should edit this
# file to keep it current.
#
# Users can override these settings by editing
# `$SPACK_ROOT/etc/spack/concretizer.yaml`, `~/.spack/concretizer.yaml`,
# or by adding a `concretizer:` section to an environment.
# -------------------------------------------------------------------------
concretizer:
# Whether to consider installed packages or packages from buildcaches when
# concretizing specs. If `true`, we'll try to use as many installs/binaries
# as possible, rather than building. If `false`, we'll always give you a fresh
# concretization.
reuse: false
# Options that tune which targets are considered for concretization. The
# concretization process is very sensitive to the number targets, and the time
# needed to reach a solution increases noticeably with the number of targets
# considered.
targets:
# Determine whether we want to target specific or generic microarchitectures.
# An example of the first kind might be for instance "skylake" or "bulldozer",
# while generic microarchitectures are for instance "aarch64" or "x86_64_v4".
granularity: microarchitectures
# If "false" allow targets that are incompatible with the current host (for
# instance concretize with target "icelake" while running on "haswell").
# If "true" only allow targets that are compatible with the host.
host_compatible: false
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