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
127 lines
2.7 KiB
Bash
127 lines
2.7 KiB
Bash
#! /bin/bash
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#set -x
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spack_shtyp=bash
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help() {
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echo -e "$0 [--help][--csh] lib ...
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Print set commands to set or set LD_LIBRARY_PATH to libraries
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specified as arguments as well as variables holding each library
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directory individually. These are usful when linking applications
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against these libraries.
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The variable names of the latter begin with 'LIB_' followed by
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the upper cased library name."
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}
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error() {
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echo -e "$1" >&2
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}
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contains() {
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local a=$1
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shift
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local -a b=($@)
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local i
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for i in ${b[*]}; do
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[ "$i" == "$a" ] && return 0
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done
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return 1
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}
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path_contains() {
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local a=$1
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local i
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[ -n "$2" ] || return 1
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OFS=$IFS
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IFS=:
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for i in $2; do
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IFS=$OFS
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[ "$i" == "$a" ] && return 0
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done
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return 1
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}
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print_env() {
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case $spack_shtyp in
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csh)
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echo "setenv $1 $2" ;;
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bash)
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if $spack_srcd; then
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eval $1=$2
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export $1
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else
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echo -e "$1=$2\nexport $1"
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fi ;;
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esac
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}
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get_paths()
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{
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local -A libpaths includepaths
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local OFS=$IFS
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local ld_exist=$LD_LIBRARY_PATH
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IFS="
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"
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local package_list="$1"
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local format="> {hash:7} {name}{@version}{%compiler}{arch=architecture}"
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local l i
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for l in $(spack find --format "{name}" --paths $package_list); do
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local lib=${l%% *}
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local path=${l##* }
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if contains $lib "${!libpaths[@]}"; then
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error "$lib matches multiple packages\n Matching packages:"
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spack find --format ${format} ${lib} >&2
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error " Use a more specific spec (e.g., prepend '/' to the hash)."
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$spack_srcd || exit 1
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fi
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for i in lib64 lib; do
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if [ -d $path/$i ]; then
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libpaths[$lib]="$path/$i"
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break
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fi
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done
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if [ -d $path/include ]; then
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includepaths[$lib]="$path/include"
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fi
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done
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IFS=$OFS
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local -A libs
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local ld_library_path
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for i in ${!libpaths[@]}; do
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libs[LIB_${i^^*}]="${libpaths[$i]}"
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path_contains ${libpaths[$i]} "${ld_exist}" || \
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ld_library_path+="${libpaths[$i]}:"
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done
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for i in ${!includepaths[@]}; do
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eval [ "unset" = "\${INC_${i}:-unset}" ] &&
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print_env "INC_${i^^*}" "${includepaths[$i]}"
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done
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for i in ${!libs[@]}; do
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eval [ "unset" = "\${${i}:-unset}" ] && print_env $i "${libs[$i]}"
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done
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[ -n "$ld_library_path" ] && \
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print_env LD_LIBRARY_PATH "${ld_library_path}\$LD_LIBRARY_PATH"
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}
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source /usr/share/spack/setup-env.sh
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spack_srcd=false
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(
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[[ -n $ZSH_VERSION && $ZSH_EVAL_CONTEXT =~ :file$ ]] ||
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[[ -n $BASH_VERSION ]] && (return 0 2>/dev/null)
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) && spack_srcd=true
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while [ -n "$1" ]; do
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case $1 in
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*-help|*-h) help; $spack_srcd || exit 0 ;;
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*-csh|*-tcsh)
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spack_shtyp=csh ;;
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*) package_list+=" $1" ;;
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esac
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shift
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done
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get_paths "$package_list"
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