4.4 OMP_DISPLAY_AFFINITY – Display thread affinity information

ICV: display-affinity-var
Scope: global
Description:

If set to FALSE or if unset, affinity displaying is disabled. If set to TRUE, the runtime displays affinity information about OpenMP threads in a parallel region upon entering the region and every time any change occurs.

See also:

OMP_AFFINITY_FORMAT – Set the format string used for affinity display

Reference:

OpenMP specification v5.0, Section 6.13