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authorMassimiliano Culpo <massimiliano.culpo@gmail.com>2022-05-24 21:13:28 +0200
committerGitHub <noreply@github.com>2022-05-24 12:13:28 -0700
commitf2a81af70e1d70828a579ea325a0699d89c7a420 (patch)
treeca1c33b18e129076012b79e6d16da7219fde0ad0 /share
parent494e567fe5826dd8be28d95aefafc8aebb05fbbf (diff)
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Best effort co-concretization (iterative algorithm) (#28941)
Currently, environments can either be concretized fully together or fully separately. This works well for users who create environments for interoperable software and can use `concretizer:unify:true`. It does not allow environments with conflicting software to be concretized for maximal interoperability. The primary use-case for this is facilities providing system software. Facilities provide multiple MPI implementations, but all software built against a given MPI ought to be interoperable. This PR adds a concretization option `concretizer:unify:when_possible`. When this option is used, Spack will concretize specs in the environment separately, but will optimize for minimal differences in overlapping packages. * Add a level of indirection to root specs This commit introduce the "literal" atom, which comes with a few different "arities". The unary "literal" contains an integer that id the ID of a spec literal. Other "literals" contain information on the requests made by literal ID. For instance zlib@1.2.11 generates the following facts: literal(0,"root","zlib"). literal(0,"node","zlib"). literal(0,"node_version_satisfies","zlib","1.2.11"). This should help with solving large environments "together where possible" since later literals can be now solved together in batches. * Add a mechanism to relax the number of literals being solved * Modify spack solve to display the new criteria Since the new criteria is above all the build criteria, we need to modify the way we display the output. Originally done by Greg in #27964 and cherry-picked to this branch by the co-author of the commit. Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com> * Inject reusable specs into the solve Instead of coupling the PyclingoDriver() object with spack.config, inject the concrete specs that can be reused. A method level function takes care of reading from the store and the buildcache. * spack solve: show output of multi-rounds * add tests for best-effort coconcretization * Enforce having at least a literal being solved Co-authored-by: Greg Becker <becker33@llnl.gov>
Diffstat (limited to 'share')
-rw-r--r--share/spack/gitlab/cloud_pipelines/stacks/build_systems/spack.yaml2
1 files changed, 1 insertions, 1 deletions
diff --git a/share/spack/gitlab/cloud_pipelines/stacks/build_systems/spack.yaml b/share/spack/gitlab/cloud_pipelines/stacks/build_systems/spack.yaml
index 2e8d31a2e4..5a742718d4 100644
--- a/share/spack/gitlab/cloud_pipelines/stacks/build_systems/spack.yaml
+++ b/share/spack/gitlab/cloud_pipelines/stacks/build_systems/spack.yaml
@@ -3,7 +3,7 @@ spack:
concretizer:
reuse: false
- unify: false
+ unify: when_possible
config:
install_tree: