mention optflags option
authorDenis Davydov <davydden@gmail.com>
Tue, 14 Mar 2017 07:17:09 +0000 (08:17 +0100)
committerDenis Davydov <davydden@gmail.com>
Tue, 14 Mar 2017 07:17:09 +0000 (08:17 +0100)
deal.II-in-Spack.md

index 5c3afc0e614c1e02d3cfb938f386533a55d49a46..e6b609a46f547028b61f328ba70a324f9dee3674 100644 (file)
@@ -300,7 +300,7 @@ spack install --only dependencies dealii
 spack install dealii cppflags="-march=native -O3"
 ```
 
-See this [google forum topic](https://groups.google.com/forum/?fromgroups#!topic/dealii/3Yjy8CBIrgU) for discussion on which flags to use.
+See this [google forum topic](https://groups.google.com/forum/?fromgroups#!topic/dealii/3Yjy8CBIrgU) for discussion on which flags to use. You can also use `spack install dealii+optflags` to enable extra optimization flags in release build.
 
 ### Different versions coexisting:
 One can easily have slightly different versions of deal.II side-by-side, e.g. to compile development version of deal.II with complex-valued PETSc and `gcc` compiler run

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