Affinity

Example

Query affinity domain information:

julia> aff = LIKWID.get_affinity()
LIKWID.AffinityDomains
├ numberOfSocketDomains: 2
├ numberOfNumaDomains: 2
├ numberOfProcessorsPerSocket: 24
├ numberOfCacheDomains: 2
├ numberOfCoresPerCache: 12
├ numberOfProcessorsPerCache: 24
├ numberOfAffinityDomains: 9
└ domains: ... (9 elements)

julia> aff.domains
9-element Vector{LIKWID.AffinityDomain}:
 LIKWID.AffinityDomain("N", 48, 24, [0, 24, 1, 25, 2, 26, 3, 27, 4, 28  …  19, 43, 20, 44, 21, 45, 22, 46, 23, 47])
 LIKWID.AffinityDomain("S0", 24, 12, [0, 24, 1, 25, 2, 26, 3, 27, 4, 28  …  7, 31, 8, 32, 9, 33, 10, 34, 11, 35])
 LIKWID.AffinityDomain("S1", 24, 12, [12, 36, 13, 37, 14, 38, 15, 39, 16, 40  …  19, 43, 20, 44, 21, 45, 22, 46, 23, 47])
 LIKWID.AffinityDomain("D0", 24, 12, [0, 24, 1, 25, 2, 26, 3, 27, 4, 28  …  7, 31, 8, 32, 9, 33, 10, 34, 11, 35])
 LIKWID.AffinityDomain("D1", 24, 12, [12, 36, 13, 37, 14, 38, 15, 39, 16, 40  …  19, 43, 20, 44, 21, 45, 22, 46, 23, 47])
 LIKWID.AffinityDomain("C0", 24, 12, [0, 24, 1, 25, 2, 26, 3, 27, 4, 28  …  7, 31, 8, 32, 9, 33, 10, 34, 11, 35])
 LIKWID.AffinityDomain("C1", 24, 12, [12, 36, 13, 37, 14, 38, 15, 39, 16, 40  …  19, 43, 20, 44, 21, 45, 22, 46, 23, 47])
 LIKWID.AffinityDomain("M0", 24, 12, [0, 24, 1, 25, 2, 26, 3, 27, 4, 28  …  7, 31, 8, 32, 9, 33, 10, 34, 11, 35])
 LIKWID.AffinityDomain("M1", 24, 12, [12, 36, 13, 37, 14, 38, 15, 39, 16, 40  …  19, 43, 20, 44, 21, 45, 22, 46, 23, 47])

Index

Functions

LIKWID.pinthreadsFunction

Pin all Julia threads to the CPU cores coreids. Note that length(coreids) == Threads.nthreads() must hold!

source

Types