spack/spack

Health v2 · maintenance only

Adoption not part of the score

5113 stars · 2457 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Spack is a flexible, multi-platform package manager designed for supercomputers, Linux, macOS, and Windows. It builds and installs multiple versions and configurations of software side by side, using a spec syntax and pure-Python package recipes.

Use cases

• install scientific software like hdf5 without root access
• build multiple versions of the same library with different compilers
• install packages targeting a specific CPU microarchitecture
• manage software stacks mixing Python, R, C, C++, and Fortran
• create binary build caches for HPC clusters
• install customized compile-time options for dependencies

When to choose

• you need many coexisting versions or configurations of packages
• you work on HPC systems or supercomputers without root
• you need to swap compilers or target specific microarchitectures
• you build combinatorial software stacks for testing

When to avoid

• you only need simple language-ecosystem packages (use pip, npm, cargo)
• you want a minimal end-user desktop package manager
• you need prebuilt binaries exclusively and cannot build from source

Facets

cli-tool · maturity stable

package-manager build-tool cli developer-tools developer-tools windows python cli hpc scientific-computing multi-version compilers supercomputing dependency-management command-line devops linux macos

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