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outlinetrue

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Warning

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:

Code Block
==> 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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Warning

Before loading any Spack packages, it is helpful to know that Spack stores a list of loaded packages in the variable $LOADEDMODULES. Executing the command echo $LOADEDMODULES at this point will produce a blank line, as we haven't loaded Spack packages yet (try it out, just to prove this to yourself).

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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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Code Block
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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