Spack will be used to manage open source software packages on Fugaku.
Fugaku users can easily use pre-installed packages and built packages based on Spack recipes.
The following list shows the results of building/compiling packages for aarch64 according to the Spack recipes.
Note that the results in this list do not guarantee that each package will work properly.
On the other hand, Fujitsu will provide the following packages compiled with Fujitsu compiler on Fugaku as "external" packages, of which Spack can be aware.
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perfstubs
Profiling API for adding tool instrumentation support to any project.
This was motivated by the need to quickly add instrumentation to the
[ADIOS2](https://github.com/ornladios/ADIOS2) library without adding a
build dependency, or tying to a specific measurement tool. The initial
prototype implementation was tied to TAU, but evolved to this more
generic version, which was extracted as a separate repository for
testing and demonstration purposes.