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nixos/release-notes: add comment about generic mpi attribute

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Markus Kowalewski 2021-01-10 22:44:04 +01:00
parent b6a09f8887
commit 68fa960f6a
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nixos/doc/manual/release-notes/rl-2103.xml
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@ -418,6 +418,26 @@ http://some.json-exporter.host:7979/probe?target=https://example.com/some/json/e
SDK licenses if your project requires it. See the androidenv documentation for more details.
</para>
</listitem>
<listitem>
<para>
The attribute <varname>mpi</varname> is now consistently used to
provide a default, system-wide MPI implementation.
The default implementation is openmpi, which has been used before by
all derivations affects by this change.
Note that all packages that have used <varname>mpi ? null</varname> in the input
for optional MPI builds, have been changed to the boolean input paramater
<varname>useMpi</varname> to enable building with MPI.
Building all packages with <varname>mpich</varname> instead
of the default <varname>openmpi</varname> can now be achived like this:
<programlisting>
self: super:
{
mpi = super.mpich;
}
</programlisting>
</para>
</listitem>
<listitem>
<para>
The Searx module has been updated with the ability to configure the