spack/lib/spack/docs/tutorial_sc16_spack_basics.rst
2016-11-14 18:08:21 -07:00

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60 KiB
ReStructuredText

.. _basics-tutorial:
=========================================
Basic Installation Tutorial
=========================================
This tutorial will guide you through the process of installing software
using Spack. We will first cover the `spack install` command, focusing on
the power of the spec syntax and the flexibility it gives to users. We
will also cover the `spack find` command for viewing installed packages
and the `spack uninstall` command. Finally, we will touch on how Spack
manages compilers, especially as it relates to using Spack-built
compilers within Spack. We will include full output from all of the
commands demonstrated, although we will frequently call attention to only
small portions of that output (or merely to the fact that it
succeeded). The provided output is all from a cluster running Red Hat
Enterprise Linux.
.. _basics-tutorial-install:
----------------
Installing Spack
----------------
Spack works out of the box. Simply clone spack and get going.
.. code-block:: console
becker33:~$ git clone https://github.com/LLNL/spack.git
Initialized empty Git repository in /g/g0/becker33/testclone/spack/.git/
remote: Counting objects: 47125, done.
remote: Compressing objects: 100% (68/68), done.
remote: Total 47125 (delta 16), reused 2 (delta 2), pack-reused 47047
Receiving objects: 100% (47125/47125), 12.02 MiB | 2.11 MiB/s, done.
Resolving deltas: 100% (23044/23044), done.
becker33:~$ cd spack
Then add Spack to your path.
.. code-block:: console
becker33:spack$ export PATH=~/spack/bin/spack:$PATH
You're good to go!
-----------------
What is in Spack?
-----------------
The ``spack list`` command shows available packages.
.. code-block:: console
becker33:spack$ spack list
==> 1016 packages.
abinit hwloc piranha r-rjava
ack hydra pixman r-rjson
activeharmony hypre pkg-config r-rjsonio
...
The ``spack list`` command can also take a query string. Spack
automatically adds wildcards to both ends of the string. For example,
we can view all available python packages.
.. code-block:: console
becker33:spack$ spack list py
==> 129 packages.
py-3to2 py-epydoc py-nestle py-pycparser py-six
py-alabaster py-flake8 py-netcdf py-pydatalog py-sncosmo
py-argcomplete py-funcsigs py-networkx py-pyelftools py-snowballstemmer
...
-------------------
Installing Packages
-------------------
Installing a package with Spack is very simple. To install a piece of
software, simply type ``spack install <package_name>``
.. code-block:: console
$ spack install libelf
==> Installing libelf
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.13.tar.gz
curl: (37) Couldn't open file /g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.13.tar.gz
==> Fetching from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.13.tar.gz failed.
==> Trying to fetch from http://www.mr511.de/software/libelf-0.8.13.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.13-csrt4qxfkhjgn5xg3zjpkir7xdnszl2a/libelf-0.8.13.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.13-csrt4qxfkhjgn5xg3zjpkir7xdnszl2a
==> No patches needed for libelf
==> Building libelf [Package]
==> Executing phase : 'install'
==> Successfully installed libelf
Fetch: 1.21s. Build: 8.42s. Total: 9.62s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.13-csrt4qxfkhjgn5xg3zjpkir7xdnszl2a
Spack's spec syntax is the interface by which we can request specific
configurations of the package. The ``%`` sigil is used to specify
compilers.
.. code-block:: console
$ spack install libelf %intel
==> Installing libelf
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.13.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.13-7wgp32xksatkvw2tbssmehw2t5tnxndj/libelf-0.8.13.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.13-7wgp32xksatkvw2tbssmehw2t5tnxndj
==> No patches needed for libelf
==> Building libelf [Package]
==> Executing phase : 'install'
==> Successfully installed libelf
Fetch: 0.09s. Build: 50.64s. Total: 50.72s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/intel-16.0.3/libelf-0.8.13-7wgp32xksatkvw2tbssmehw2t5tnxndj
Note that this installation is located separately from the previous
one. We will discuss this in more detail later, but this is part of what
allows Spack to support arbitrarily versioned software.
You can check for particular versions before requesting them. We will
use the ``spack versions`` command to see the available versions, and then
install a different version of ``libelf``.
.. code-block:: console
$ spack versions libelf
==> Safe versions (already checksummed):
0.8.13
0.8.12
==> Remote versions (not yet checksummed):
0.8.11
0.8.10
0.8.9
0.8.8
0.8.7
0.8.6
0.8.5
0.8.4
0.8.3
0.8.2
0.8.0
0.7.0
0.6.4
0.5.2
The ``@`` sigil is used to specify versions, both of packages and of
compilers.
.. code-block:: console
$ spack install libelf @0.8.12
==> Installing libelf
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.12.tar.gz
curl: (37) Couldn't open file /g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.12.tar.gz
==> Fetching from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.12.tar.gz failed.
==> Trying to fetch from http://www.mr511.de/software/libelf-0.8.12.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.12-ipggckv6i7h44iryzfa4dwdela32a7fy/libelf-0.8.12.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.12-ipggckv6i7h44iryzfa4dwdela32a7fy
==> No patches needed for libelf
==> Building libelf [Package]
==> Executing phase : 'install'
==> Successfully installed libelf
Fetch: 1.12s. Build: 7.88s. Total: 9.00s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.12-ipggckv6i7h44iryzfa4dwdela32a7fy
$ spack install libelf %intel@15.0.4
==> Installing libelf
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.13.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.13-w33hrejdyqu2j2gggdswitls2zv6kdsi/libelf-0.8.13.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.13-w33hrejdyqu2j2gggdswitls2zv6kdsi
==> No patches needed for libelf
==> Building libelf [Package]
==> Executing phase : 'install'
==> Successfully installed libelf
Fetch: 0.09s. Build: 55.51s. Total: 55.60s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/intel-15.0.4/libelf-0.8.13-w33hrejdyqu2j2gggdswitls2zv6kdsi
The spec syntax also includes compiler flags. Spack accepts ``cppflags``,
``cflags``, ``cxxflags``, ``fflags``, ``ldflags``, and ``ldlibs``
parameters. The values of these fields must be escape-quoted with ``\"``
on the command line. These values are injected into the compile line
automatically by the Spack compiler wrappers.
.. code-block:: console
$ spack install libelf @0.8.12 cppflags=\"-O3\"
==> Installing libelf
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.12.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.12-vrv2ttbd34xlfoxy4jwt6qsjrcbalmmw/libelf-0.8.12.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.12-vrv2ttbd34xlfoxy4jwt6qsjrcbalmmw
==> No patches needed for libelf
==> Building libelf [Package]
==> Executing phase : 'install'
==> Successfully installed libelf
Fetch: 0.04s. Build: 7.95s. Total: 7.99s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.12-vrv2ttbd34xlfoxy4jwt6qsjrcbalmmw
The ``spack find`` command is used to query installed packages. Note that
some packages appear identical with the default output. The ``-l`` flag
shows the hash of each package, and the ``-f`` flag shows any non-empty
compiler flags of those packages.
.. code-block:: console
$ spack find
==> 5 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
libelf@0.8.12
libelf@0.8.12
libelf@0.8.13
-- linux-redhat6-x86_64 / intel@15.0.4 --------------------------
libelf@0.8.13
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
libelf@0.8.13
$ spack find -lf
==> 5 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
ipggckv libelf@0.8.12%gcc
vrv2ttb libelf@0.8.12%gcc cppflags="-O3"
csrt4qx libelf@0.8.13%gcc
-- linux-redhat6-x86_64 / intel@15.0.4 --------------------------
w33hrej libelf@0.8.13%intel
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
7wgp32x libelf@0.8.13%intel
Spack generates a hash for each spec. This hash is a function of the full
provenance of the package, so any change to the spec affects the
hash. Spack uses this value to compare specs and to generate unique
installation directories for every combinatorial version. As we move into
more complicated packages with software dependencies, we can see that
Spack reuses existing packages to satisfy a dependency only when the
existing package's hash matches the desired spec.
.. code-block:: console
$ spack install libdwarf
==> Installing libdwarf
==> libelf is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.13-csrt4qxfkhjgn5xg3zjpkir7xdnszl2a
==> Can not find version 20160507 in url_list
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libdwarf/libdwarf-20160507.tar.gz
curl: (37) Couldn't open file /g/g0/becker33/SC16-spack/spack/var/spack/cache/libdwarf/libdwarf-20160507.tar.gz
==> Fetching from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libdwarf/libdwarf-20160507.tar.gz failed.
==> Trying to fetch from http://www.prevanders.net/libdwarf-20160507.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libdwarf-20160507-yfx6p3g3rkmqvcqbmtb34o6pln7pqvcz/libdwarf-20160507.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libdwarf-20160507-yfx6p3g3rkmqvcqbmtb34o6pln7pqvcz
==> No patches needed for libdwarf
==> Building libdwarf [Package]
==> Executing phase : 'install'
==> Successfully installed libdwarf
Fetch: 1.56s. Build: 33.59s. Total: 35.15s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libdwarf-20160507-yfx6p3g3rkmqvcqbmtb34o6pln7pqvcz
Dependencies can be explicitly requested using the ``^`` sigil. Note that
the spec syntax is recursive. Anything we could specify about the
top-level package, we can also specify about a dependency using ``^``.
.. code-block:: console
$ spack install libdwarf ^libelf @0.8.12 %intel
==> Installing libdwarf
==> Installing libelf
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libelf/libelf-0.8.12.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.12-4blbe3qxqct3ymrfoxxnxysmybvbxay7/libelf-0.8.12.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libelf-0.8.12-4blbe3qxqct3ymrfoxxnxysmybvbxay7
==> No patches needed for libelf
==> Building libelf [Package]
==> Executing phase : 'install'
==> Successfully installed libelf
Fetch: 0.04s. Build: 52.16s. Total: 52.19s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/intel-16.0.3/libelf-0.8.12-4blbe3qxqct3ymrfoxxnxysmybvbxay7
==> Can not find version 20160507 in url_list
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libdwarf/libdwarf-20160507.tar.gz
################################################################################################################################################################################# 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libdwarf-20160507-csruprgucaujkfkrcywhwou7nbeis5fo/libdwarf-20160507.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libdwarf-20160507-csruprgucaujkfkrcywhwou7nbeis5fo
==> No patches needed for libdwarf
==> Building libdwarf [Package]
==> Executing phase : 'install'
==> Successfully installed libdwarf
Fetch: 0.40s. Build: 2m 17.29s. Total: 2m 17.69s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/intel-16.0.3/libdwarf-20160507-csruprgucaujkfkrcywhwou7nbeis5fo
Packages can also be referred to from the command line by their package
hash. Using the ``spack find -lf`` command earlier we saw that the hash
of our optimized installation of libelf (``cppflags=\"-O3\"``) began with
``vrv2ttb``. We can now explicitly build with that package without typing
the entire spec, by using the ``/`` sigil to refer to it by hash. As with
other tools like git, you do not need to specify an *entire* hash on the
command line. You can specify just enough digits to identify a hash
uniquely. If a hash prefix is ambiguous (i.e., two or more installed
packages share the prefix) then spack will report an error.
.. code-block:: console
$ spack install libdwarf ^/vrv2ttb
==> Installing libdwarf
==> libelf is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.12-vrv2ttbd34xlfoxy4jwt6qsjrcbalmmw
==> Can not find version 20160507 in url_list
==> Trying to fetch from file:///g/g0/becker33/SC16-spack/spack/var/spack/cache/libdwarf/libdwarf-20160507.tar.gz
#################################################################################################################################################################################################################################################### 100.0%
==> Staging archive: /g/g0/becker33/SC16-spack/spack/var/spack/stage/libdwarf-20160507-dtg3tgnp7htccoly26gduqlrgvnwcp5t/libdwarf-20160507.tar.gz
==> Created stage in /g/g0/becker33/SC16-spack/spack/var/spack/stage/libdwarf-20160507-dtg3tgnp7htccoly26gduqlrgvnwcp5t
==> No patches needed for libdwarf
==> Building libdwarf [Package]
==> Executing phase : 'install'
==> Successfully installed libdwarf
Fetch: 0.96s. Build: 24.03s. Total: 24.99s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libdwarf-20160507-dtg3tgnp7htccoly26gduqlrgvnwcp5t
The ``spack find`` command can also take a ``-d`` flag, which can show
dependency information. Note that each package has a top-level entry,
even if it also appears as a dependency.
.. code-block:: console
$ spack find -ldf
==> 9 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
dtg3tgn libdwarf@20160507%gcc
vrv2ttb ^libelf@0.8.12%gcc cppflags="-O3"
yfx6p3g libdwarf@20160507%gcc
csrt4qx ^libelf@0.8.13%gcc
ipggckv libelf@0.8.12%gcc
vrv2ttb libelf@0.8.12%gcc cppflags="-O3"
csrt4qx libelf@0.8.13%gcc
-- linux-redhat6-x86_64 / intel@15.0.4 --------------------------
w33hrej libelf@0.8.13%intel
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
csruprg libdwarf@20160507%intel
4blbe3q ^libelf@0.8.12%intel
4blbe3q libelf@0.8.12%intel
7wgp32x libelf@0.8.13%intel
As we get to more complex packages, full installs will take too long to
build in the time allotted for this tutorial. Our collaborators at CERN
have been working on binary caching for Spack, which would allow for very
fast installs of previously built packages. We are still working out the
security ramifications of the feature, but it is coming soon.
For now, we will switch to doing "fake" installs. When supplied with the
``--fake`` flag (primarily used for debugging), Spack computes build
metadata the same way it normally would, but it does not download the
source or run the install script for a pacakge. We can use this to
quickly demonstrate some of the more advanced Spack features in our
limited tutorial time.
``HDF5`` is an example of a more complicated package, with an MPI
dependency. If we install it "out of the box," it will build with
``openmpi``.
.. code-block:: console
$ spack install --fake hdf5
==> Installing hdf5
==> Installing zlib
==> Building zlib [Package]
==> Successfully installed zlib
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Installing openmpi
==> Installing hwloc
==> Installing libpciaccess
==> Installing util-macros
==> Building util-macros [Package]
==> Successfully installed util-macros
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/util-macros-1.19.0-pc6zhs4cnkmg2cv4et4fizsp6scuvacg
==> Installing libtool
==> Installing m4
==> Installing libsigsegv
==> Building libsigsegv [Package]
==> Successfully installed libsigsegv
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libsigsegv-2.10-q4cok3yber7lhf3jswg6mysg7oi53unh
==> Building m4 [Package]
==> Successfully installed m4
Fetch: . Build: 0.23s. Total: 0.23s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> Building libtool [Package]
==> Successfully installed libtool
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libtool-2.4.6-rdx5nkfjwlvcanz5il3ys2pe34j4vxx5
==> Installing pkg-config
==> Building pkg-config [Package]
==> Successfully installed pkg-config
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/pkg-config-0.29.1-wpjnlzahdw6ahkrgmqyeugkj2zhv4tui
==> Building libpciaccess [Package]
==> Successfully installed libpciaccess
Fetch: . Build: 0.10s. Total: 0.10s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libpciaccess-0.13.4-m2f6fpm22rpprq2ihkmfx6llf363264m
==> Building hwloc [Package]
==> Successfully installed hwloc
Fetch: . Build: 0.23s. Total: 0.23s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hwloc-1.11.4-xpb6hbl2hsze25cgdgfnoppn6rchhzaz
==> Building openmpi [Package]
==> Successfully installed openmpi
Fetch: . Build: 0.35s. Total: 0.35s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openmpi-2.0.1-j4cgoq4furxvr73pq72r2qgywgksw3qn
==> Building hdf5 [AutotoolsPackage]
==> Successfully installed hdf5
Fetch: . Build: 0.61s. Total: 0.61s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-ezvtnox35albuaxqryuondweyjgeo6es
Spack packages can also have variants. Boolean variants can be specified
using the ``+`` and ``~`` or ``-`` sigils. There are two sigils for
``False`` to avoid conflicts with shell parsing in different
situations. Variants (boolean or otherwise) can also be specified using
the same syntax as compiler flags. Here we can install HDF5 without MPI
support.
.. code-block:: console
$ spack install --fake hdf5~mpi
==> Installing hdf5
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Building hdf5 [AutotoolsPackage]
==> Successfully installed hdf5
Fetch: . Build: 0.22s. Total: 0.22s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-twppaioxqn6lti4grgopnmhwcq3h2rpw
We might also want to install HDF5 with a different MPI
implementation. While MPI is not a package itself, packages can depend on
abstract interfaces like MPI. Spack handles these through "virtual
dependencies." A package, such as HDF5, can depend on the MPI
interface. Other packages (``openmpi``, ``mpich``, ``mvapich``, etc.)
provide the MPI interface. Any of these providers can be requested for
an MPI dependency. For example, we can build HDF5 with MPI support
provided by mpich by specifying a dependency on ``mpich``. Spack also
supports versioning of virtual dependencies. A package can depend on the
MPI interface at version 3, and provider packages specify what version of
the interface *they* provide. The partial spec ``^mpi@3`` can be safisfied
by any of several providers.
.. code-block:: console
$ spack install --fake hdf5+mpi ^mpich
==> Installing hdf5
==> mpich is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpich-3.2-5jlp2ndnsb67txggraglu47vjmayx5za
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Building hdf5 [AutotoolsPackage]
==> Successfully installed hdf5
Fetch: . Build: 0.38s. Total: 0.38s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-j36yfw25i6gdd3q4vwlupgkpwic4ua6m
We'll do a quick check in on what we have installed so far.
.. code-block:: console
$ spack find -ldf
==> 22 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
twppaio hdf5@1.10.0-patch1%gcc
ayc4jq7 ^zlib@1.2.8%gcc
j36yfw2 hdf5@1.10.0-patch1%gcc
5jlp2nd ^mpich@3.2%gcc
ayc4jq7 ^zlib@1.2.8%gcc
ezvtnox hdf5@1.10.0-patch1%gcc
j4cgoq4 ^openmpi@2.0.1%gcc
xpb6hbl ^hwloc@1.11.4%gcc
m2f6fpm ^libpciaccess@0.13.4%gcc
ayc4jq7 ^zlib@1.2.8%gcc
xpb6hbl hwloc@1.11.4%gcc
m2f6fpm ^libpciaccess@0.13.4%gcc
dtg3tgn libdwarf@20160507%gcc
vrv2ttb ^libelf@0.8.12%gcc cppflags="-O3"
yfx6p3g libdwarf@20160507%gcc
csrt4qx ^libelf@0.8.13%gcc
ipggckv libelf@0.8.12%gcc
vrv2ttb libelf@0.8.12%gcc cppflags="-O3"
csrt4qx libelf@0.8.13%gcc
m2f6fpm libpciaccess@0.13.4%gcc
q4cok3y libsigsegv@2.10%gcc
rdx5nkf libtool@2.4.6%gcc
qijdzvh m4@1.4.17%gcc
q4cok3y ^libsigsegv@2.10%gcc
5jlp2nd mpich@3.2%gcc
j4cgoq4 openmpi@2.0.1%gcc
xpb6hbl ^hwloc@1.11.4%gcc
m2f6fpm ^libpciaccess@0.13.4%gcc
wpjnlza pkg-config@0.29.1%gcc
pc6zhs4 util-macros@1.19.0%gcc
ayc4jq7 zlib@1.2.8%gcc
-- linux-redhat6-x86_64 / intel@15.0.4 --------------------------
w33hrej libelf@0.8.13%intel
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
csruprg libdwarf@20160507%intel
4blbe3q ^libelf@0.8.12%intel
4blbe3q libelf@0.8.12%intel
7wgp32x libelf@0.8.13%intel
Spack models the dependencies of packages as a directed acyclic graph
(DAG). The ``spack find -d`` command shows the tree representation of
that graph. We can also use the ``spack graph`` command to view the entire
DAG as a graph.
.. code-block:: console
$ spack graph hdf5+mpi ^mpich
o hdf5
|\
o | zlib
/
o mpich
You may also have noticed that there are some packages shown in the
``spack find -d`` output that we didn't install explicitly. These are
dependencies that were installed implicitly. A few packages installed
implicitly are not shown as dependencies in the ``spack find -d``
output. These are build dependencies. For example, ``libpciaccess`` is a
dependency of openmpi and requires m4 to build. Spack will build `m4`` as
part of the installation of ``openmpi``, but it does not become a part of
the DAG because it is not linked in at run time. Spack handles build
dependencies differently because of their different (less strict)
consistency requirements. It is entirely possible to have two packages
using different versions of a dependency to build, which obviously cannot
be done with linked dependencies.
``HDF5`` is more complicated than our basic example of libelf and
libdwarf, but it's still within the realm of software that an experienced
HPC user could reasonably expect to install given a bit of time. Now
let's look at a more complicated package.
.. code-block:: console
$ spack install --fake trilinos
==> Installing trilinos
==> Installing superlu-dist
==> openmpi is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openmpi-2.0.1-j4cgoq4furxvr73pq72r2qgywgksw3qn
==> Installing parmetis
==> openmpi is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openmpi-2.0.1-j4cgoq4furxvr73pq72r2qgywgksw3qn
==> Installing cmake
==> Installing bzip2
==> Building bzip2 [Package]
==> Successfully installed bzip2
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/bzip2-1.0.6-gll2xsahysy7ji5gkmfxwkofdt3mwjhs
==> expat is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/expat-2.2.0-mg5kwd3kluxdgorj32vzbp7aksg3vqej
==> Installing ncurses
==> Building ncurses [Package]
==> Successfully installed ncurses
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/ncurses-6.0-fttg4astvrtq2buey4wq66tnyu7bgj2c
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Installing openssl
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Building openssl [Package]
==> Successfully installed openssl
Fetch: . Build: 0.23s. Total: 0.23s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openssl-1.0.2j-kt5xyk2dkho6tzadnqlbnbujmljprylg
==> Installing libarchive
==> Installing lzma
==> Building lzma [Package]
==> Successfully installed lzma
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/lzma-4.32.7-hah2cdo3zbulz6yg5do6dvnfn6en5v5c
==> Installing nettle
==> m4 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> Installing gmp
==> m4 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> Building gmp [AutotoolsPackage]
==> Successfully installed gmp
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gmp-6.1.1-uwn4gfdtq3sywy5uf4f7znrh66oybikf
==> Building nettle [Package]
==> Successfully installed nettle
Fetch: . Build: 0.18s. Total: 0.18s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/nettle-3.2-w4ieitifcmrldo4ra7as63apagzf56ja
==> bzip2 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/bzip2-1.0.6-gll2xsahysy7ji5gkmfxwkofdt3mwjhs
==> expat is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/expat-2.2.0-mg5kwd3kluxdgorj32vzbp7aksg3vqej
==> Installing libxml2
==> Installing xz
==> Building xz [Package]
==> Successfully installed xz
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/xz-5.2.2-bxh6cpyqqozazm5okvjqk23sww3gccnf
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Building libxml2 [Package]
==> Successfully installed libxml2
Fetch: . Build: 0.35s. Total: 0.35s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libxml2-2.9.4-un323rppyu5qipkegyf7flmymvtmunrx
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Installing lz4
==> Building lz4 [Package]
==> Successfully installed lz4
Fetch: . Build: 0.12s. Total: 0.12s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/lz4-131-ivy2fcaw7ywujx74weebdi5bsm7q4vkc
==> openssl is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openssl-1.0.2j-kt5xyk2dkho6tzadnqlbnbujmljprylg
==> xz is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/xz-5.2.2-bxh6cpyqqozazm5okvjqk23sww3gccnf
==> Installing lzo
==> Building lzo [AutotoolsPackage]
==> Successfully installed lzo
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/lzo-2.09-dlgnm74ozo6baactkft5oah2jre2ri2i
==> Building libarchive [Package]
==> Successfully installed libarchive
Fetch: . Build: 1.35s. Total: 1.35s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libarchive-3.2.1-biq3kebw7vel7njusill7vv7mjldkqjv
==> xz is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/xz-5.2.2-bxh6cpyqqozazm5okvjqk23sww3gccnf
==> Installing curl
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> openssl is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openssl-1.0.2j-kt5xyk2dkho6tzadnqlbnbujmljprylg
==> Building curl [Package]
==> Successfully installed curl
Fetch: . Build: 0.36s. Total: 0.36s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/curl-7.50.3-oze4gqutj4x2isbkcn5ob2bhhxbskod4
==> Building cmake [Package]
==> Successfully installed cmake
Fetch: . Build: 1.64s. Total: 1.64s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> Installing metis
==> cmake is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> Building metis [Package]
==> Successfully installed metis
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/metis-5.1.0-ithifyl4xvqbn76js23wsb4tjnztrbdv
==> Building parmetis [Package]
==> Successfully installed parmetis
Fetch: . Build: 0.62s. Total: 0.62s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/parmetis-4.0.3-rtg6hml5t6acdcnxomn3l5zfiful4d2t
==> Installing openblas
==> Building openblas [Package]
==> Successfully installed openblas
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> metis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/metis-5.1.0-ithifyl4xvqbn76js23wsb4tjnztrbdv
==> Building superlu-dist [Package]
==> Successfully installed superlu-dist
Fetch: . Build: 0.85s. Total: 0.85s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/superlu-dist-5.1.1-25r6jlvkpjnkiuwt2rtbzhk3l3htuxs7
==> cmake is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> Installing glm
==> cmake is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> Building glm [Package]
==> Successfully installed glm
Fetch: . Build: 0.12s. Total: 0.12s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/glm-0.9.7.1-7a6oho4aerz7vftxd5ur7lywscht2iry
==> Installing hypre
==> openmpi is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openmpi-2.0.1-j4cgoq4furxvr73pq72r2qgywgksw3qn
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> Building hypre [Package]
==> Successfully installed hypre
Fetch: . Build: 0.61s. Total: 0.61s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hypre-2.11.1-lf7hcejiiww5peesh57quda72z67veit
==> metis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/metis-5.1.0-ithifyl4xvqbn76js23wsb4tjnztrbdv
==> Installing netlib-scalapack
==> openmpi is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openmpi-2.0.1-j4cgoq4furxvr73pq72r2qgywgksw3qn
==> cmake is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> Building netlib-scalapack [Package]
==> Successfully installed netlib-scalapack
Fetch: . Build: 0.61s. Total: 0.61s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/netlib-scalapack-2.0.2-dvcanz2qq4dfcexznbhbmzbxfj43uz4q
==> Installing suite-sparse
==> Installing tbb
==> Building tbb [Package]
==> Successfully installed tbb
Fetch: . Build: 0.12s. Total: 0.12s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/tbb-4.4.4-zawzkkhrmdonbjpj3a5bb6gkgnqlrjeu
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> metis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/metis-5.1.0-ithifyl4xvqbn76js23wsb4tjnztrbdv
==> Building suite-sparse [Package]
==> Successfully installed suite-sparse
Fetch: . Build: 0.49s. Total: 0.49s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/suite-sparse-4.5.3-lvur6hriy2j7xfjwh5punp3exwpynzm6
==> openmpi is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openmpi-2.0.1-j4cgoq4furxvr73pq72r2qgywgksw3qn
==> Installing netcdf
==> m4 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> curl is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/curl-7.50.3-oze4gqutj4x2isbkcn5ob2bhhxbskod4
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> hdf5 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-ezvtnox35albuaxqryuondweyjgeo6es
==> Building netcdf [Package]
==> Successfully installed netcdf
Fetch: . Build: 0.90s. Total: 0.90s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/netcdf-4.4.1-tcl4zbrmdfrit2cqlaxig6xieu5h552j
==> Installing mumps
==> netlib-scalapack is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/netlib-scalapack-2.0.2-dvcanz2qq4dfcexznbhbmzbxfj43uz4q
==> openmpi is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openmpi-2.0.1-j4cgoq4furxvr73pq72r2qgywgksw3qn
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> Building mumps [Package]
==> Successfully installed mumps
Fetch: . Build: 0.74s. Total: 0.74s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mumps-5.0.2-kr5r4nnx5tfcacxnk3ii5dsxbe6pu5fy
==> Installing matio
==> Building matio [Package]
==> Successfully installed matio
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/matio-1.5.2-4zrozucookychlvc4q53omp2zyfk2bed
==> Installing boost
==> bzip2 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/bzip2-1.0.6-gll2xsahysy7ji5gkmfxwkofdt3mwjhs
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> Building boost [Package]
==> Successfully installed boost
Fetch: . Build: 0.35s. Total: 0.35s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/boost-1.62.0-je7eqvzt74kezwhh55y5lwt5dy6pnali
==> parmetis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/parmetis-4.0.3-rtg6hml5t6acdcnxomn3l5zfiful4d2t
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> hdf5 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-ezvtnox35albuaxqryuondweyjgeo6es
==> Building trilinos [Package]
==> Successfully installed trilinos
Fetch: . Build: 2.63s. Total: 2.63s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/trilinos-12.8.1-uvd6dfd7x4uyvck4awo3r3frudihn4ar
Now we're starting to see the power of Spack. Trilinos has 11 top level
dependecies, many of which have dependencies of their own. Installing
more complex packages can take days or weeks even for an experienced
user. Although we've done a fake installation for the tutorial, a real
installation of trilinos using Spack takes about 3 hours (depending on
the system), but only 20 seconds of programmer time.
Spack manages constistency of the entire DAG. Every MPI dependency will
be satisfied by the same configuration of MPI, etc. If we install
``trilinos`` again specifying a dependency on our previous HDF5 built
with ``mpich``:
.. code-block:: console
$ spack install --fake trilinos ^hdf5+mpi ^mpich
==> Installing trilinos
==> Installing superlu-dist
==> mpich is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpich-3.2-5jlp2ndnsb67txggraglu47vjmayx5za
==> metis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/metis-5.1.0-ithifyl4xvqbn76js23wsb4tjnztrbdv
==> Installing parmetis
==> mpich is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpich-3.2-5jlp2ndnsb67txggraglu47vjmayx5za
==> metis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/metis-5.1.0-ithifyl4xvqbn76js23wsb4tjnztrbdv
==> cmake is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> Building parmetis [Package]
==> Successfully installed parmetis
Fetch: . Build: 0.38s. Total: 0.38s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/parmetis-4.0.3-43kbtni6p5y446c6qdkybq4htj7ot4zn
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> Building superlu-dist [Package]
==> Successfully installed superlu-dist
Fetch: . Build: 0.61s. Total: 0.61s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/superlu-dist-5.1.1-46uuupehmonx5jicc6xnegnud2n5jqyl
==> cmake is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> glm is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/glm-0.9.7.1-7a6oho4aerz7vftxd5ur7lywscht2iry
==> Installing hypre
==> mpich is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpich-3.2-5jlp2ndnsb67txggraglu47vjmayx5za
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> Building hypre [Package]
==> Successfully installed hypre
Fetch: . Build: 0.37s. Total: 0.37s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hypre-2.11.1-6ajnyymoivs5apajd7thjisae36jv4lz
==> metis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/metis-5.1.0-ithifyl4xvqbn76js23wsb4tjnztrbdv
==> Installing netlib-scalapack
==> mpich is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpich-3.2-5jlp2ndnsb67txggraglu47vjmayx5za
==> cmake is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/cmake-3.6.1-n2nkknrku6dvuneo3rjumim7axt7n36e
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> Building netlib-scalapack [Package]
==> Successfully installed netlib-scalapack
Fetch: . Build: 0.37s. Total: 0.37s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/netlib-scalapack-2.0.2-dayeep27omm26wksd3iqvbu3gezc2eoh
==> suite-sparse is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/suite-sparse-4.5.3-lvur6hriy2j7xfjwh5punp3exwpynzm6
==> Installing netcdf
==> m4 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> curl is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/curl-7.50.3-oze4gqutj4x2isbkcn5ob2bhhxbskod4
==> zlib is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/zlib-1.2.8-ayc4jq7vxuzge5n444gutvskeytfdruh
==> hdf5 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-j36yfw25i6gdd3q4vwlupgkpwic4ua6m
==> Building netcdf [Package]
==> Successfully installed netcdf
Fetch: . Build: 0.67s. Total: 0.67s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/netcdf-4.4.1-gfemi4jk4qltvp33xhtpkam7dozbqvhq
==> Installing mumps
==> mpich is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpich-3.2-5jlp2ndnsb67txggraglu47vjmayx5za
==> netlib-scalapack is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/netlib-scalapack-2.0.2-dayeep27omm26wksd3iqvbu3gezc2eoh
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> Building mumps [Package]
==> Successfully installed mumps
Fetch: . Build: 0.49s. Total: 0.49s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mumps-5.0.2-w7t5pl3jhhwitfiyer63zj6zv7idkt3m
==> mpich is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpich-3.2-5jlp2ndnsb67txggraglu47vjmayx5za
==> matio is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/matio-1.5.2-4zrozucookychlvc4q53omp2zyfk2bed
==> boost is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/boost-1.62.0-je7eqvzt74kezwhh55y5lwt5dy6pnali
==> parmetis is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/parmetis-4.0.3-43kbtni6p5y446c6qdkybq4htj7ot4zn
==> openblas is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/openblas-0.2.19-bwofa7fhff6od5zn56vy3j4eeyupsqgt
==> hdf5 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-j36yfw25i6gdd3q4vwlupgkpwic4ua6m
==> Building trilinos [Package]
==> Successfully installed trilinos
Fetch: . Build: 2.42s. Total: 2.42s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/trilinos-12.8.1-ffwrpxnq7lhiw2abxn2u7ffr4jjsdwep
We see that every package in the trilinos DAG that depends on MPI now
uses ``mpich``.
.. code-block:: console
$ spack find -d trilinos
==> 2 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
trilinos@12.8.1
^boost@1.62.0
^bzip2@1.0.6
^zlib@1.2.8
^glm@0.9.7.1
^hdf5@1.10.0-patch1
^mpich@3.2
^hypre@2.11.1
^openblas@0.2.19
^matio@1.5.2
^metis@5.1.0
^mumps@5.0.2
^netlib-scalapack@2.0.2
^netcdf@4.4.1
^curl@7.50.3
^openssl@1.0.2j
^parmetis@4.0.3
^suite-sparse@4.5.3
^tbb@4.4.4
^superlu-dist@5.1.1
trilinos@12.8.1
^boost@1.62.0
^bzip2@1.0.6
^zlib@1.2.8
^glm@0.9.7.1
^hdf5@1.10.0-patch1
^openmpi@2.0.1
^hwloc@1.11.4
^libpciaccess@0.13.4
^hypre@2.11.1
^openblas@0.2.19
^matio@1.5.2
^metis@5.1.0
^mumps@5.0.2
^netlib-scalapack@2.0.2
^netcdf@4.4.1
^curl@7.50.3
^openssl@1.0.2j
^parmetis@4.0.3
^suite-sparse@4.5.3
^tbb@4.4.4
^superlu-dist@5.1.1
As we discussed before, the ``spack find -d`` command shows the
dependency information as a tree. While that is often sufficient, many
complicated packages, including trilinos, have dependencies that
cannot be fully represented as a tree. Again, the ``spack graph``
command shows the full DAG of the dependency information.
.. code-block:: console
$ spack graph trilinos
o trilinos
|\
| |\
| | |\
| | | |\
| | | | |\
| | | | | |\
| | | | | | |\
| o | | | | | | netcdf
| |\ \ \ \ \ \ \
| | |\ \ \ \ \ \ \
| | | o | | | | | | curl
| | |/| | | | | | |
| |/| | | | | | | |
| | | o | | | | | | openssl
| | |/ / / / / / /
| |/| | | | | | |
| | o | | | | | | hdf5
| |/| | | | | | |
| | |/ / / / / /
| o | | | | | | zlib
| / / / / / /
o | | | | | | swig
o | | | | | | pcre
/ / / / / /
o | | | | | mpi
/ / / / /
o | | | | matio
/ / / /
o | | | lapack
/ / /
o | | glm
/ /
o | boost
/
o blas
You can control how the output is displayed with a number of options.
The ASCII output from ``spack graph`` can be difficult to parse for
complicated packages. The output can be changed to the ``graphviz``
``.dot`` format using the `--dot` flag.
.. code-block:: console
$ spack graph --dot trilinos | dot -Tpdf trilinos_graph.pdf
.. _basics-tutorial-uninstall:
---------------------
Uninstalling Packages
---------------------
Earlier we installed many configurations each of libelf and
libdwarf. Now we will go through and uninstall some of those packages
that we didn't really need.
.. code-block:: console
$ spack find -d libdwarf
==> 3 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
libdwarf@20160507
^libelf@0.8.12
libdwarf@20160507
^libelf@0.8.13
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
libdwarf@20160507
^libelf@0.8.12
$ spack find libelf
==> 6 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
libelf@0.8.12 libelf@0.8.12 libelf@0.8.13
-- linux-redhat6-x86_64 / intel@15.0.4 --------------------------
libelf@0.8.13
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
libelf@0.8.12 libelf@0.8.13
We can uninstall packages by spec using the same syntax as install.
.. code-block:: console
$ spack uninstall libelf%intel@15.0.4
==> The following packages will be uninstalled :
-- linux-redhat6-x86_64 / intel@15.0.4 --------------------------
w33hrej libelf@0.8.13%intel
==> Do you want to proceed ? [y/n]
y
==> Successfully uninstalled libelf@0.8.13%intel@15.0.4 arch=linux-redhat6-x86_64-w33hrej
$ spack find -lf libelf
==> 5 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
ipggckv libelf@0.8.12%gcc
vrv2ttb libelf@0.8.12%gcc cppflags="-O3"
csrt4qx libelf@0.8.13%gcc
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
4blbe3q libelf@0.8.12%intel
7wgp32x libelf@0.8.13%intel
We can uninstall packages by referring only to their hash.
We can use either ``-f`` (force) or ``-d`` (remove dependents as well) to
remove packages that are required by another installed package.
$ spack uninstall /4blb
==> Error: Will not uninstall libelf@0.8.12%intel@16.0.3-4blbe3q
The following packages depend on it:
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
csruprg libdwarf@20160507%intel
==> Error: You can use spack uninstall --dependents to uninstall these dependencies as well
$ spack uninstall -d /4blb
==> The following packages will be uninstalled :
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
csruprg libdwarf@20160507%intel
4blbe3q libelf@0.8.12%intel
==> Do you want to proceed ? [y/n]
y
==> Successfully uninstalled libdwarf@20160507%intel@16.0.3 arch=linux-redhat6-x86_64-csruprg
==> Successfully uninstalled libelf@0.8.12%intel@16.0.3 arch=linux-redhat6-x86_64-4blbe3q
Spack will not uninstall packages that are not sufficiently
specified. The ``-a`` (all) flag can be used to uninstall multiple
packages at once.
$ spack uninstall trilinos
==> Error: trilinos matches multiple packages:
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
ffwrpxn trilinos@12.8.1%gcc+boost~debug+hdf5+hypre+metis+mumps~python+shared+suite-sparse+superlu-dist
uvd6dfd trilinos@12.8.1%gcc+boost~debug+hdf5+hypre+metis+mumps~python+shared+suite-sparse+superlu-dist
==> Error: You can either:
a) Use a more specific spec, or
b) use spack uninstall -a to uninstall ALL matching specs.
$ spack uninstall /ffwr
==> The following packages will be uninstalled :
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
ffwrpxn trilinos@12.8.1%gcc+boost~debug+hdf5+hypre+metis+mumps~python+shared+suite-sparse+superlu-dist
==> Do you want to proceed ? [y/n]
y
==> Successfully uninstalled trilinos@12.8.1%gcc@4.4.7+boost~debug+hdf5+hypre+metis+mumps~python+shared+suite-sparse+superlu-dist arch=linux-redhat6-x86_64-ffwrpxn
-----------------------------
Advanced ``spack find`` Usage
-----------------------------
We will go over some additional uses for the `spack find` command not
already covered in the :ref:`basics-tutorial-install` and
:ref:`basics-tutorial-uninstall` sections.
The ``spack find`` command can accept what we call "anonymous specs."
These are expressions in spec syntax that do not contain a package
name. For example, `spack find %intel` will return every package built
with the intel compiler, and ``spack find cppflags=\\"-O3\\"`` will
return every package which was built with ``cppflags=\\"-O3\\"``.
.. code-block:: console
$ spack find %intel
==> 1 installed packages.
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
libelf@0.8.13
$ spack find cppflags=\"-O3\"
==> 1 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
libelf@0.8.12
The ``find`` command can also show which packages were installed
explicitly (rather than pulled in as a dependency) using the ``-e``
flag. The ``-E`` flag shows implicit installs only. The ``find`` command can
also show the path to which a spack package was installed using the ``-p``
command.
.. code-block:: console
$ spack find -pe
==> 10 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
hdf5@1.10.0-patch1 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-twppaioxqn6lti4grgopnmhwcq3h2rpw
hdf5@1.10.0-patch1 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-j36yfw25i6gdd3q4vwlupgkpwic4ua6m
hdf5@1.10.0-patch1 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/hdf5-1.10.0-patch1-ezvtnox35albuaxqryuondweyjgeo6es
libdwarf@20160507 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libdwarf-20160507-dtg3tgnp7htccoly26gduqlrgvnwcp5t
libdwarf@20160507 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libdwarf-20160507-yfx6p3g3rkmqvcqbmtb34o6pln7pqvcz
libelf@0.8.12 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.12-ipggckv6i7h44iryzfa4dwdela32a7fy
libelf@0.8.12 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.12-vrv2ttbd34xlfoxy4jwt6qsjrcbalmmw
libelf@0.8.13 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/libelf-0.8.13-csrt4qxfkhjgn5xg3zjpkir7xdnszl2a
trilinos@12.8.1 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/trilinos-12.8.1-uvd6dfd7x4uyvck4awo3r3frudihn4ar
-- linux-redhat6-x86_64 / intel@16.0.3 --------------------------
libelf@0.8.13 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/intel-16.0.3/libelf-0.8.13-7wgp32xksatkvw2tbssmehw2t5tnxndj
---------------------
Customizing Compilers
---------------------
Spack manages a list of available compilers on the system, detected
automatically from from the user's ``PATH`` variable. The ``spack
compilers`` command is an alias for the command ``spack compiler list``.
.. code-block:: console
$ spack compilers
==> Available compilers
-- gcc ----------------------------------------------------------
gcc@4.4.7
-- intel --------------------------------------------------------
intel@16.0.3 intel@15.0.1 intel@14.0.0 intel@12.1.3 intel@10.0
intel@16.0.2 intel@15.0.0 intel@13.1.1 intel@12.1.2 intel@9.1
intel@16.0.1 intel@14.0.4 intel@13.1.0 intel@12.1.0
intel@16.0.0 intel@14.0.3 intel@13.0.1 intel@12.0.4
intel@15.0.4 intel@14.0.2 intel@13.0.0 intel@11.1
intel@15.0.3 intel@14.0.1 intel@12.1.5 intel@10.1
-- pgi ----------------------------------------------------------
pgi@16.5-0 pgi@15.7-0 pgi@14.7-0 pgi@13.2-0 pgi@11.10-0 pgi@9.0-4
pgi@16.3-0 pgi@15.5-0 pgi@14.3-0 pgi@13.1-1 pgi@11.1-0 pgi@8.0-1
pgi@16.1-0 pgi@15.1-0 pgi@13.10-0 pgi@12.8-0 pgi@10.9-0 pgi@7.1-3
pgi@15.10-0 pgi@14.10-0 pgi@13.6-0 pgi@12.1-0 pgi@10.2-0 pgi@7.0-6
The compilers are maintained in a YAML file that can be hand-edited
for special cases. Spack also has tools to add compilers, and
compilers built with Spack can be added to the configuration.
.. code-block:: console
$ spack install --fake gcc@6.1.0
==> Installing gcc
==> gmp is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gmp-6.1.1-uwn4gfdtq3sywy5uf4f7znrh66oybikf
==> Installing isl
==> gmp is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gmp-6.1.1-uwn4gfdtq3sywy5uf4f7znrh66oybikf
==> Building isl [Package]
==> Successfully installed isl
Fetch: . Build: 0.19s. Total: 0.19s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/isl-0.14-hs2w7mjjjaakkmbbv5yvfqf7yyzhorl6
==> Installing mpc
==> gmp is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gmp-6.1.1-uwn4gfdtq3sywy5uf4f7znrh66oybikf
==> Installing mpfr
==> gmp is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gmp-6.1.1-uwn4gfdtq3sywy5uf4f7znrh66oybikf
==> Building mpfr [Package]
==> Successfully installed mpfr
Fetch: . Build: 0.17s. Total: 0.17s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpfr-3.1.4-7kt5ij437khredfq4bvnyu22t3fmtfvt
==> Building mpc [Package]
==> Successfully installed mpc
Fetch: . Build: 0.28s. Total: 0.28s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpc-1.0.3-g5taq6lt3zuy5l2jtggi5lctxnl4la5u
==> Installing binutils
==> m4 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> Installing bison
==> m4 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> Building bison [Package]
==> Successfully installed bison
Fetch: . Build: 0.12s. Total: 0.12s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/bison-3.0.4-hkhfysfvq5l6rsns67g2htmkpxauvnwa
==> Installing flex
==> m4 is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/m4-1.4.17-qijdzvhjyybrtwbqm73vykhmkaqro3je
==> bison is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/bison-3.0.4-hkhfysfvq5l6rsns67g2htmkpxauvnwa
==> Building flex [Package]
==> Successfully installed flex
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/flex-2.6.0-qd6d73rdfrozdrsdpimvl4tj7d5ps7qg
==> Building binutils [Package]
==> Successfully installed binutils
Fetch: . Build: 0.11s. Total: 0.11s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/binutils-2.27-iq2hry3gvaxszmwwbnll7njgdgaek56o
==> mpfr is already installed in /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/mpfr-3.1.4-7kt5ij437khredfq4bvnyu22t3fmtfvt
==> Building gcc [Package]
==> Successfully installed gcc
Fetch: . Build: 0.66s. Total: 0.66s.
[+] /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gcc-6.1.0-j5576zbsot2ydljlthjzhsirsesnogvh
$ spack find -p gcc
==> 1 installed packages.
-- linux-redhat6-x86_64 / gcc@4.4.7 -----------------------------
gcc@6.1.0 /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gcc-6.1.0-j5576zbsot2ydljlthjzhsirsesnogvh
If we had done a "real" install of gcc, we could add it to our
configuration now using the `spack compiler add` command, but we would
also be waiting for it to install. If we run the command now, it will
return no new compilers.
.. code-block:: console
$ spack compiler add /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gcc-6.1.0-j5576zbsot2ydljlthjzhsirsesnogvh/bin
==> Found no new compilers
If we had done a real install, the output would have been as follows:
.. code-block:: console
$ spack compiler add /g/g0/becker33/SC16-spack/spack/opt/spack/linux-redhat6-x86_64/gcc-4.4.7/gcc-6.1.0-j5576zbsot2ydljlthjzhsirsesnogvh/bin
==> Added 1 new compiler to /g/g0/becker33/.spack/linux/compilers.yaml
gcc@6.1.0