FM / topology

/sys/devices/system/cpu/cpu3/topology

Name	Size	Mode	Actions
core_cpus	4096	0444	edit dl rm
core_cpus_list	4096	0444	edit dl rm
core_id	4096	0444	edit dl rm
core_siblings	4096	0444	edit dl rm
core_siblings_list	4096	0444	edit dl rm
die_cpus	4096	0444	edit dl rm
die_cpus_list	4096	0444	edit dl rm
die_id	4096	0444	edit dl rm
package_cpus	4096	0444	edit dl rm
package_cpus_list	4096	0444	edit dl rm
physical_package_id	4096	0444	edit dl rm
thread_siblings	4096	0444	edit dl rm
thread_siblings_list	4096	0444	edit dl rm

Edit: /sys/devices/system/cpu/cpu3/topology/package_cpus_list (4096B)

1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47