Removes cyclic dependency on spack.config. #2121
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tgamblin
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Oct 25, 2016
mpbelhorn
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Merge spack#2030 added a cyclic dependency between the Cray platform needing to read a `targets.yaml` config file and `config.py` needing to get the platform names. This commit removes the cyclic dependency in favor of the more general config scheme. It also removes the now functionless `targets.yaml` config file. This breaks 'frontend' targets on the Cray platform but all architecture targets, including the frontend, that are provided by CrayPE are added to the Platform anyway so users can be explicit about the architecture targeted by the Cray compiler wrappers: ``` spack spec libelf arch=cray-CNL-frontend ``` becomes ``` spack spec libelf arch=cray-CNL-mc8 # on an XK7 or spack spec libelf arch=cray-CNL-sandybridge # on an older XC30, etc.. ``` The only way the 'frontend' target can be defined after this commit is through target environment variables.
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I have an optimization that puts the default modules and craype targets into a singleton which greatly improves performance. I can add it to this MR today if we want to hold of merging until then. |
tgamblin
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Oct 31, 2016
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@mpbelhorn: sorry I missed your message a few days ago. Feel free to submit that whenever you want -- you may want to wait until after #2152 is merged as it affects configs. |
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Merge #2030 added a cyclic dependency between the Cray platform needing
to read a
targets.yamlconfig file andconfig.pyneeding to get theplatform names.
This commit removes the cyclic dependency in favor of the more general
config scheme. It also removes the now functionless
targets.yamlconfig file. This breaks 'frontend' targets on the Cray platform but
all architecture targets, including the frontend, that are provided by
CrayPE are added to the Platform anyway so users can be explicit about
the architecture targeted by the Cray compiler wrappers:
becomes
The only way the 'frontend' target can be defined after this commit is
through target environment variables.