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Spack is a package manager, similar to yum, apt-get, or conda. It allows for multiple package versions/configurations. Unlike the other package managers listed, Spack is specifically designed to be used on HPC resources with varying architectures.
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Note: Sometimes, you'll see multiple installations of the same package installed on the same OS, with the same compiler (e.g. relion@3.0_beta is listed 3 times in the above output). What this means is that this packages was installed for the same OS/compiler, but with different configuration options. This will be explained in the next section. |
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TRUNCATED OUTPUT:
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==> 28316768 packages. abinit muster r-catools abyss mvapich2 r-cdcfluview accfft mxml r-cellranger ack mxnet r-cghflasso activeharmony nag r-checkmate adept-utils nalu r-checkpoint adios nalu-wind r-chemometrics adios2 namd r-chron adlbx nano r-circlize adol-c nanoflann r-class aegean nanopb r-classint albany nasm r-cli |
Currently, there are 2are 6,831 768 packages available! This number will also certainly increase after the writing of this documentation.
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Before loading any Spack packages, it is helpful to know that Spack stores a list of loaded packages in the variable |
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spack load -r python@3.7.0^gcc@6.3.0 |
- The -r instructs Spack to load all modules that python@3.7.0 depends on. This is typically done automatically, but not currently done for perl, python, or R (this is because Spack does not build these packages with RPATH support--this may change in the future).
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echo $LOADEDMODULES | sed "s/:/\n/g" | sort |
Here, we can see that python@3.7.0 is indeed loaded, as are all packages that it depends on.
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