Here is a list of all namespaces with brief descriptions:

Nanalyze_bench
NAsmAVX2Codegenerator
NAsmKaratsubaCodegenerator
NAsmKaratsubaRedc
NAsmMontRedc
NAsmMontRedc32
NAsmMontRedcAVX2
NAsmMultCodegenerator
NAsmMultCodegenerator_noPIC
NAsmMultCodegenerator_PIC
Nbasefield_chain3
Nbenchmark_graph
Nbenchmark_graph_03
Nbenchmark_graph_04
Nhdr_code
Nnamespace_asm
Nrandom_walks2
Nrandom_walks3
Nsetup
Ntests