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Diffstat (limited to 'lib/spack/docs/configuration.rst')
| -rw-r--r-- | lib/spack/docs/configuration.rst | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/lib/spack/docs/configuration.rst b/lib/spack/docs/configuration.rst index a6f876b2aa..f2ffa07264 100644 --- a/lib/spack/docs/configuration.rst +++ b/lib/spack/docs/configuration.rst @@ -53,6 +53,7 @@ in the first directory it finds to which it has write access. Add more elements to the list to indicate where your own site's temporary directory is. +.. _sec-external_packages: External Packages ---------------------------- @@ -70,20 +71,20 @@ directory. Here's an example of an external configuration: packages: openmpi: paths: - openmpi@1.4.3%gcc@4.4.7 arch=chaos_5_x86_64_ib: /opt/openmpi-1.4.3 - openmpi@1.4.3%gcc@4.4.7 arch=chaos_5_x86_64_ib+debug: /opt/openmpi-1.4.3-debug - openmpi@1.6.5%intel@10.1 arch=chaos_5_x86_64_ib: /opt/openmpi-1.6.5-intel + openmpi@1.4.3%gcc@4.4.7 arch=linux-x86_64-debian7: /opt/openmpi-1.4.3 + openmpi@1.4.3%gcc@4.4.7 arch=linux-x86_64-debian7+debug: /opt/openmpi-1.4.3-debug + openmpi@1.6.5%intel@10.1 arch=linux-x86_64-debian7: /opt/openmpi-1.6.5-intel This example lists three installations of OpenMPI, one built with gcc, one built with gcc and debug information, and another built with Intel. If Spack is asked to build a package that uses one of these MPIs as a dependency, it will use the the pre-installed OpenMPI in -the given directory. +the given directory. Packages.yaml can also be used to specify modules Each ``packages.yaml`` begins with a ``packages:`` token, followed -by a list of package names. To specify externals, add a ``paths`` +by a list of package names. To specify externals, add a ``paths`` or ``modules`` token under the package name, which lists externals in a -``spec : /path`` format. Each spec should be as +``spec: /path`` or ``spec: module-name`` format. Each spec should be as well-defined as reasonably possible. If a package lacks a spec component, such as missing a compiler or package version, then Spack will guess the missing component based @@ -108,9 +109,9 @@ be: packages: openmpi: paths: - openmpi@1.4.3%gcc@4.4.7 arch=chaos_5_x86_64_ib: /opt/openmpi-1.4.3 - openmpi@1.4.3%gcc@4.4.7 arch=chaos_5_x86_64_ib+debug: /opt/openmpi-1.4.3-debug - openmpi@1.6.5%intel@10.1 arch=chaos_5_x86_64_ib: /opt/openmpi-1.6.5-intel + openmpi@1.4.3%gcc@4.4.7 arch=linux-x86_64-debian7: /opt/openmpi-1.4.3 + openmpi@1.4.3%gcc@4.4.7 arch=linux-x86_64-debian7+debug: /opt/openmpi-1.4.3-debug + openmpi@1.6.5%intel@10.1 arch=linux-x86_64-debian7: /opt/openmpi-1.6.5-intel buildable: False The addition of the ``buildable`` flag tells Spack that it should never build @@ -118,6 +119,9 @@ its own version of OpenMPI, and it will instead always rely on a pre-built OpenMPI. Similar to ``paths``, ``buildable`` is specified as a property under a package name. +If an external module is specified as not buildable, then Spack will load the +external module into the build environment which can be used for linking. + The ``buildable`` does not need to be paired with external packages. It could also be used alone to forbid packages that may be buggy or otherwise undesirable. @@ -181,7 +185,6 @@ concretization rules. A provider lists a value that packages may dependency. - Profiling ------------------ |