Add OpenMP functions to documentation

6 jobs for master in 181 minutes and 2 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Test
passed job_clang_amd64 #2237
amd64

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passed job_clang_amd64_nosh #2241
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passed job_clang_py2_amd64 #2239
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02:58:27

passed job_gcc_amd64 #2236
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passed job_gcc_amd64_nosh #2240
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passed job_gcc_py2_amd64 #2238
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02:15:53