Egbert Eich
56ffc9a15e
* Features in this Release
+ Spec splicing
To make binary installation more seamless in Spack, `v0.23`
introduces "splicing", which allows users to deploy binaries
using local, optimized versions of a binary interface, even
if they were not built with that interface. For example, this
would allow you to build binaries in the cloud using `mpich`
and install them on a system using a local, optimized version
of `mvapich2` *without rebuilding*. Spack preserves full
provenance for the installed packages and knows that they
were built one way but deployed another.
The intent is to leverage this across many key HPC binary
packages, e.g. MPI, CUDA, ROCm, and libfabric.
Fundamentally, splicing allows Spack to redeploy an existing
spec with different dependencies than how it was built. There
are two interfaces to splicing.
a. Explicit Splicing
In the concretizer config, you can specify a target spec
and a replacement by hash.
```yaml
concretizer:
splice:
explicit:
- target: mpi
replacement: mpich/abcdef
```
Here, every installation that would normally use the target
spec will instead use its replacement. Above, any spec using
*any* `mpi` will be spliced to depend on the specific `mpich`
OBS-URL: https://build.opensuse.org/package/show/network:cluster/spack?expand=0&rev=111
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## Default LFS
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*.7z filter=lfs diff=lfs merge=lfs -text
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*.bsp filter=lfs diff=lfs merge=lfs -text
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*.bz2 filter=lfs diff=lfs merge=lfs -text
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*.gem filter=lfs diff=lfs merge=lfs -text
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*.gz filter=lfs diff=lfs merge=lfs -text
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*.jar filter=lfs diff=lfs merge=lfs -text
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*.lz filter=lfs diff=lfs merge=lfs -text
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*.lzma filter=lfs diff=lfs merge=lfs -text
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*.obscpio filter=lfs diff=lfs merge=lfs -text
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*.oxt filter=lfs diff=lfs merge=lfs -text
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*.pdf filter=lfs diff=lfs merge=lfs -text
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*.png filter=lfs diff=lfs merge=lfs -text
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*.rpm filter=lfs diff=lfs merge=lfs -text
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*.tbz filter=lfs diff=lfs merge=lfs -text
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*.tbz2 filter=lfs diff=lfs merge=lfs -text
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*.tgz filter=lfs diff=lfs merge=lfs -text
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*.ttf filter=lfs diff=lfs merge=lfs -text
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*.txz filter=lfs diff=lfs merge=lfs -text
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*.whl filter=lfs diff=lfs merge=lfs -text
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*.xz filter=lfs diff=lfs merge=lfs -text
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*.zip filter=lfs diff=lfs merge=lfs -text
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*.zst filter=lfs diff=lfs merge=lfs -text
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## Specific LFS patterns
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objects.inv filter=lfs diff=lfs merge=lfs -text
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