diff --git a/lib/spack/docs/basic_usage.rst b/lib/spack/docs/basic_usage.rst index ec193e767d..199a7ef386 100644 --- a/lib/spack/docs/basic_usage.rst +++ b/lib/spack/docs/basic_usage.rst @@ -114,13 +114,13 @@ that the packages is installed: $ spack install mpileaks ==> Installing mpileaks - ==> mpich is already installed in /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/mpich@3.0.4. - ==> callpath is already installed in /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/callpath@1.0.2-5dce4318. - ==> adept-utils is already installed in /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/adept-utils@1.0-5adef8da. + ==> mpich is already installed in /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/mpich@3.0.4. + ==> callpath is already installed in /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/callpath@1.0.2-5dce4318. + ==> adept-utils is already installed in /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/adept-utils@1.0-5adef8da. ==> Trying to fetch from https://github.com/hpc/mpileaks/releases/download/v1.0/mpileaks-1.0.tar.gz ######################################################################## 100.0% - ==> Staging archive: /home/gamblin2/spack/var/spack/stage/mpileaks@1.0%gcc@4.4.7 arch=chaos_5_x86_64_ib-59f6ad23/mpileaks-1.0.tar.gz - ==> Created stage in /home/gamblin2/spack/var/spack/stage/mpileaks@1.0%gcc@4.4.7 arch=chaos_5_x86_64_ib-59f6ad23. + ==> Staging archive: /home/gamblin2/spack/var/spack/stage/mpileaks@1.0%gcc@4.4.7 arch=linux-x86_64-debian7-59f6ad23/mpileaks-1.0.tar.gz + ==> Created stage in /home/gamblin2/spack/var/spack/stage/mpileaks@1.0%gcc@4.4.7 arch=linux-x86_64-debian7-59f6ad23. ==> No patches needed for mpileaks. ==> Building mpileaks. @@ -128,7 +128,7 @@ that the packages is installed: ==> Successfully installed mpileaks. Fetch: 2.16s. Build: 9.82s. Total: 11.98s. - [+] /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/mpileaks@1.0-59f6ad23 + [+] /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/mpileaks@1.0-59f6ad23 The last line, with the ``[+]``, indicates where the package is installed. @@ -230,7 +230,7 @@ Running ``spack find`` with no arguments lists installed packages: $ spack find ==> 74 installed packages. - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- ImageMagick@6.8.9-10 libdwarf@20130729 py-dateutil@2.4.0 adept-utils@1.0 libdwarf@20130729 py-ipython@2.3.1 atk@2.14.0 libelf@0.8.12 py-matplotlib@1.4.2 @@ -256,7 +256,7 @@ Running ``spack find`` with no arguments lists installed packages: lcms@2.6 pixman@0.32.6 xz@5.2.0 libdrm@2.4.33 py-dateutil@2.4.0 zlib@1.2.8 - -- chaos_5_x86_64_ib / gcc@4.9.2 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.9.2 -------------------------------- libelf@0.8.10 mpich@3.0.4 Packages are divided into groups according to their architecture and @@ -279,7 +279,7 @@ in more detail using ``spack find -d``, and by asking only to show $ spack find --deps libdwarf ==> 2 installed packages. - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- libdwarf@20130729-d9b90962 ^libelf@0.8.12 libdwarf@20130729-b52fac98 @@ -295,7 +295,7 @@ want to know whether two packages' dependencies differ, you can use $ spack find -l libdwarf ==> 2 installed packages. - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- libdwarf@20130729-d9b90962 libdwarf@20130729-b52fac98 Now the ``libwarf`` installs have hashes after their names. These are @@ -309,14 +309,14 @@ use ``spack find -p``: $ spack find -p ==> 74 installed packages. - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- - ImageMagick@6.8.9-10 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/ImageMagick@6.8.9-10-4df950dd - adept-utils@1.0 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/adept-utils@1.0-5adef8da - atk@2.14.0 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/atk@2.14.0-3d09ac09 - boost@1.55.0 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/boost@1.55.0 - bzip2@1.0.6 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/bzip2@1.0.6 - cairo@1.14.0 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/cairo@1.14.0-fcc2ab44 - callpath@1.0.2 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/callpath@1.0.2-5dce4318 + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- + ImageMagick@6.8.9-10 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/ImageMagick@6.8.9-10-4df950dd + adept-utils@1.0 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/adept-utils@1.0-5adef8da + atk@2.14.0 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/atk@2.14.0-3d09ac09 + boost@1.55.0 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/boost@1.55.0 + bzip2@1.0.6 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/bzip2@1.0.6 + cairo@1.14.0 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/cairo@1.14.0-fcc2ab44 + callpath@1.0.2 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/callpath@1.0.2-5dce4318 ... And, finally, you can restrict your search to a particular package @@ -325,10 +325,10 @@ by supplying its name: .. code-block:: sh $ spack find -p libelf - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- - libelf@0.8.11 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/libelf@0.8.11 - libelf@0.8.12 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/libelf@0.8.12 - libelf@0.8.13 /home/gamblin2/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/libelf@0.8.13 + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- + libelf@0.8.11 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/libelf@0.8.11 + libelf@0.8.12 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/libelf@0.8.12 + libelf@0.8.13 /home/gamblin2/spack/opt/linux-x86_64-debian7/gcc@4.4.7/libelf@0.8.13 ``spack find`` actually does a lot more than this. You can use *specs* to query for specific configurations and builds of each @@ -338,7 +338,7 @@ package. If you want to find only libelf versions greater than version .. code-block:: sh $ spack find libelf@0.8.12: - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- libelf@0.8.12 libelf@0.8.13 Finding just the versions of libdwarf built with a particular version @@ -348,7 +348,7 @@ of libelf would look like this: $ spack find -l libdwarf ^libelf@0.8.12 ==> 1 installed packages. - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- libdwarf@20130729-d9b90962 We can also search for packages that have a certain attribute. For example, @@ -460,19 +460,38 @@ editing your ``~/.spack/compilers.yaml`` file. You can do this by running Each compiler configuration in the file looks like this:: ... - chaos_5_x86_64_ib: - ... - intel@15.0.0: + compilers: + - compiler: + modules = [] + operating_system: OS + paths: cc: /usr/local/bin/icc-15.0.024-beta cxx: /usr/local/bin/icpc-15.0.024-beta f77: /usr/local/bin/ifort-15.0.024-beta fc: /usr/local/bin/ifort-15.0.024-beta - ... -The chaos_5_x86_64_ib string is an architecture string, and multiple -compilers can be listed underneath an architecture. The architecture -string may be replaced with the string 'all' to signify compilers that -work on all architectures. + spec: intel@15.0.0: + +If you're on a Cray system, the modules array will hold the names of the +compiler module as well as the corresponding PrgEnv. For example, on Edison +at NERSC the intel compiler looks just like this:: + ... + - compiler: + modules: + - PrEnv-intel + - intel/15.0.109 + ... + +The compiler paths will also look different on a Cray system. Since most +compilers are invoked using cc, CC and ftn, the paths for each compiler are +replaced with their respective Cray compiler wrapper names:: + ... + paths: + cc: cc + cxx: CC + f77: ftn + fc: ftn + ... For compilers, like ``clang``, that do not support Fortran, put ``None`` for ``f77`` and ``fc``:: @@ -488,10 +507,11 @@ list displayed by ``spack compilers``. You can also add compiler flags to manually configured compilers. The valid flags are ``cflags``, ``cxxflags``, ``fflags``, ``cppflags``, -``ldflags``, and ``ldlibs``. For example,:: +``ldflags``, and ``ldlibs``. For example:: ... - chaos_5_x86_64_ib: + compilers: + - compiler: ... intel@15.0.0: cc: /usr/local/bin/icc-15.0.024-beta @@ -546,8 +566,8 @@ More formally, a spec consists of the following pieces: boolean variants * ``name=`` Optional compiler flag specifiers. Valid flag names are ``cflags``, ``cxxflags``, ``fflags``, ``cppflags``, ``ldflags``, and ``ldlibs``. -* ``arch=`` Optional architecture specifier (``arch=bgq_os``) -* ``^`` Dependency specs (``^callpath@1.1``) +* ``target= os=`` Optional architecture specifier +(``target=haswell os=CNL10``) * ``^`` Dependency specs (``^callpath@1.1``) There are two things to notice here. The first is that specs are recursively defined. That is, each dependency after ``^`` is a spec @@ -626,7 +646,7 @@ compilers, variants, and architectures just like any other spec. Specifiers are associated with the nearest package name to their left. For example, above, ``@1.1`` and ``%gcc@4.7.2`` associates with the ``callpath`` package, while ``@1.2:1.4``, ``%gcc@4.7.5``, ``+debug``, -``-qt``, and ``arch=bgq_os`` all associate with the ``mpileaks`` package. +``-qt``, and ``target=haswell os=CNL10`` all associate with the ``mpileaks`` package. In the diagram above, ``mpileaks`` depends on ``mpich`` with an unspecified version, but packages can depend on other packages with @@ -758,14 +778,20 @@ in gnu autotools. If all flags are set, the order is Architecture specifiers ~~~~~~~~~~~~~~~~~~~~~~~ -.. Note:: - - Architecture specifiers are part of specs but are not yet - functional. They will be in Spack version 1.0, due in Q3 2015. - The architecture specifier looks identical to a variant specifier for a -non-boolean variant. The architecture can be specified only using the -reserved name ``arch`` (``arch=bgq_os``). +non-boolean variant. The architecture can be specified by using the reserved +words ``target`` and/or ``os`` (``target=x86-64 os=debian7``). + +If you are on a Cray system, you can specify which target processor to +build with. For example, if you want to build against a compute node processor +with the compute node operating system, you would specify +``target=haswell os=CNL10``. Spack will then load the appropriate module for +the target. Additionally, Spack can also intepret the following values: +``be, backend, fe, frontend``. Backend is used for specifying the compute-node +processor and operating sytem, and frontend is used for login nodes. +If you decide to leave this field empty, Spack will use the +default architecture (compute nodes). The architecture spec is displayed as a +triplet of platform-target-operating_system. (``arch=linux-x86_64-debian7``) .. _sec-virtual-dependencies: @@ -985,7 +1011,7 @@ of installed packages. $ module avail - ------- /home/gamblin2/spack/share/spack/modules/chaos_5_x86_64_ib -------- + ------- /home/gamblin2/spack/share/spack/modules/linux-x86_64-debian7 -------- adept-utils@1.0%gcc@4.4.7-5adef8da libelf@0.8.13%gcc@4.4.7 automaded@1.0%gcc@4.4.7-d9691bb0 libelf@0.8.13%intel@15.0.0 boost@1.55.0%gcc@4.4.7 mpc@1.0.2%gcc@4.4.7-559607f5 @@ -1056,7 +1082,7 @@ Spack. For example, this will add the ``mpich`` package built with $ spack use mpich %gcc@4.4.7 Prepending: mpich@3.0.4%gcc@4.4.7 (ok) $ which mpicc - ~/src/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/mpich@3.0.4/bin/mpicc + ~/src/spack/opt/linux-x86_64-debian7/gcc@4.4.7/mpich@3.0.4/bin/mpicc Or, similarly with modules, you could type: @@ -1089,8 +1115,8 @@ than one installed package matches it), then Spack will warn you: $ spack load libelf ==> Error: Multiple matches for spec libelf. Choose one: - libelf@0.8.13%gcc@4.4.7 arch=chaos_5_x86_64_ib - libelf@0.8.13%intel@15.0.0 arch=chaos_5_x86_64_ib + libelf@0.8.13%gcc@4.4.7 arch=linux-x86_64-debian7 + libelf@0.8.13%intel@15.0.0 arch=linux-x86_64-debian7 You can either type the ``spack load`` command again with a fully qualified argument, or you can add just enough extra constraints to @@ -1470,7 +1496,7 @@ an *extension*. Suppose you have Python installed like so: $ spack find python ==> 1 installed packages. - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- python@2.7.8 .. _spack-extensions: @@ -1483,7 +1509,7 @@ You can find extensions for your Python installation like this: .. code-block:: sh $ spack extensions python - ==> python@2.7.8%gcc@4.4.7 arch=chaos_5_x86_64_ib-703c7a96 + ==> python@2.7.8%gcc@4.4.7 arch=linux-x86_64-debian7-703c7a96 ==> 36 extensions: geos py-ipython py-pexpect py-pyside py-sip py-basemap py-libxml2 py-pil py-pytz py-six @@ -1495,7 +1521,7 @@ You can find extensions for your Python installation like this: py-h5py py-numpy py-pyqt py-shiboken ==> 12 installed: - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- py-dateutil@2.4.0 py-nose@1.3.4 py-pyside@1.2.2 py-dateutil@2.4.0 py-numpy@1.9.1 py-pytz@2014.10 py-ipython@2.3.1 py-pygments@2.0.1 py-setuptools@11.3.1 @@ -1511,8 +1537,8 @@ prefixes, and you can see this with ``spack find -p``: $ spack find -p py-numpy ==> 1 installed packages. - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- - py-numpy@1.9.1 /g/g21/gamblin2/src/spack/opt/chaos_5_x86_64_ib/gcc@4.4.7/py-numpy@1.9.1-66733244 + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- + py-numpy@1.9.1 /g/g21/gamblin2/src/spack/opt/linux-x86_64-debian7/gcc@4.4.7/py-numpy@1.9.1-66733244 However, even though this package is installed, you cannot use it directly when you run ``python``: @@ -1573,9 +1599,9 @@ installation: .. code-block:: sh $ spack activate py-numpy - ==> Activated extension py-setuptools@11.3.1%gcc@4.4.7 arch=chaos_5_x86_64_ib-3c74eb69 for python@2.7.8%gcc@4.4.7. - ==> Activated extension py-nose@1.3.4%gcc@4.4.7 arch=chaos_5_x86_64_ib-5f70f816 for python@2.7.8%gcc@4.4.7. - ==> Activated extension py-numpy@1.9.1%gcc@4.4.7 arch=chaos_5_x86_64_ib-66733244 for python@2.7.8%gcc@4.4.7. + ==> Activated extension py-setuptools@11.3.1%gcc@4.4.7 arch=linux-x86_64-debian7-3c74eb69 for python@2.7.8%gcc@4.4.7. + ==> Activated extension py-nose@1.3.4%gcc@4.4.7 arch=linux-x86_64-debian7-5f70f816 for python@2.7.8%gcc@4.4.7. + ==> Activated extension py-numpy@1.9.1%gcc@4.4.7 arch=linux-x86_64-debian7-66733244 for python@2.7.8%gcc@4.4.7. Several things have happened here. The user requested that ``py-numpy`` be activated in the ``python`` installation it was built @@ -1590,7 +1616,7 @@ packages listed as activated: .. code-block:: sh $ spack extensions python - ==> python@2.7.8%gcc@4.4.7 arch=chaos_5_x86_64_ib-703c7a96 + ==> python@2.7.8%gcc@4.4.7 arch=linux-x86_64-debian7-703c7a96 ==> 36 extensions: geos py-ipython py-pexpect py-pyside py-sip py-basemap py-libxml2 py-pil py-pytz py-six @@ -1602,14 +1628,14 @@ packages listed as activated: py-h5py py-numpy py-pyqt py-shiboken ==> 12 installed: - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- py-dateutil@2.4.0 py-nose@1.3.4 py-pyside@1.2.2 py-dateutil@2.4.0 py-numpy@1.9.1 py-pytz@2014.10 py-ipython@2.3.1 py-pygments@2.0.1 py-setuptools@11.3.1 py-matplotlib@1.4.2 py-pyparsing@2.0.3 py-six@1.9.0 ==> 3 currently activated: - -- chaos_5_x86_64_ib / gcc@4.4.7 -------------------------------- + -- linux-x86_64-debian7 / gcc@4.4.7 -------------------------------- py-nose@1.3.4 py-numpy@1.9.1 py-setuptools@11.3.1 @@ -1670,7 +1696,7 @@ Spack currently needs to be run from a filesystem that supports ``flock`` locking semantics. Nearly all local filesystems and recent versions of NFS support this, but parallel filesystems may be mounted without ``flock`` support enabled. You can determine how your -filesystems are mounted with ``mount -p``. The output for a Lustre + filesystems are mounted with ``mount -p``. The output for a Lustre filesystem might look like this: .. code-block:: sh @@ -1691,7 +1717,7 @@ This issue typically manifests with the error below: Traceback (most recent call last): File "./spack", line 176, in main() - File "./spack", line 154, in main + File "./spack", line 154,' in main return_val = command(parser, args) File "./spack/lib/spack/spack/cmd/find.py", line 170, in find specs = set(spack.installed_db.query(**q_args)) @@ -1709,6 +1735,20 @@ This issue typically manifests with the error below: A nicer error message is TBD in future versions of Spack. + +Spack on Cray +----------------------------- + +Spack is able to detect compilers through the module avail command. Once it +detects the compiler it writes the appropriate PrgEnv and compiler module +name to compilers.yaml and sets the paths to each compiler with Cray\'s +compiler wrapper names ie (cc, CC, ftn). During build time, Spack will +load the correct PrgEnv and compiler module and will call either cc, CC +or ftn. If you want to use default compilers for each PrgEnv and also be able +to link to cray external modules, you will need to set up a packages.yaml +:ref:`Exernal Packages` + + Getting Help ----------------------- diff --git a/lib/spack/docs/configuration.rst b/lib/spack/docs/configuration.rst index a6f876b2aa..b2e81e4334 100644 --- a/lib/spack/docs/configuration.rst +++ b/lib/spack/docs/configuration.rst @@ -70,20 +70,31 @@ 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 + +Here's an example of an external configuration for cray modules: + +.. code-block:: yaml + packages: + mpich: + modules: + mpich@7.3.1%gcc@5.2.0 arch=cray_xc-haswell-CNL10: cray-mpich + mpich@7.3.1%intel@16.0.0.109 arch=cray_xc-haswell-CNL10: cray-mpich + + 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 +119,9 @@ 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 +129,9 @@ 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. @@ -180,7 +194,35 @@ concretization rules. A provider lists a value that packages may ``depend_on`` (e.g, mpi) and a list of rules for fulfilling that dependency. +For Cray users, you can specify the default compiler that Spack will +concretize too. If you want to use the Cray defaults, then set them +under all: in packages.yaml. You can also specify concretization preferences +to cray-mpich. Just set the cray-mpich external module as a preferred package, +set buildable to False and set the preference of mpi to mpich. +Here is an example of a full packages.yaml used at NERSC + +.. code-block:: sh + packages: + mpich: + modules: + mpich@7.3.1%gcc@5.2.0 arch=cray_xc-CNL10-ivybridge: cray-mpich + mpich@7.3.1%intel@16.0.0.109 arch=cray_xc-SuSE11-ivybridge: cray-mpich + buildable: False + netcdf: + modules: + netcdf@4.3.3.1%gcc@5.2.0 arch=cray_xc-CNL10-ivybridge: cray-netcdf + netcdf@4.3.3.1%intel@16.0.0.109 arch=cray_xc-CNL10-ivybridge: cray-netcdf + buildable: False + hdf5: + paths: + hdf5@1.8.14%gcc@5.2.0 arch=cray_xc-CNL10-ivybridge: cray-hdf5 + hdf5@1.8.14%intel@16.0.0.109 arch=cray_xc-CNL10-ivybridge: cray-hdf5 + buildable: False + all: + compiler: [gcc@5.2.0, intel@16.0.0.109] + providers: + mpi: [mpich, openmpi, intelmpi]ackages: Profiling ------------------