cpu_layout.py

 #! /usr/bin/python3
#
#   BSD LICENSE
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import sys

sockets = []
cores = []
core_map = {}

with open("/proc/cpuinfo") as f:
    lines = f.readlines()

core_details = []
core_lines = {}
for line in lines:
    if len(line.strip()) != 0:
        name, value = line.split(":", 1)
        core_lines[name.strip()] = value.strip()
    else:
        core_details.append(core_lines)
        core_lines = {}

for core in core_details:
    for field in ["processor", "core id", "physical id"]:
        if field not in core:
            print("Error getting '%s' value from /proc/cpuinfo" % field)
            sys.exit(1)
        core[field] = int(core[field])

    if core["core id"] not in cores:
        cores.append(core["core id"])
    if core["physical id"] not in sockets:
        sockets.append(core["physical id"])
    key = (core["physical id"], core["core id"])
    if key not in core_map:
        core_map[key] = []
    core_map[key].append(core["processor"])

print("============================================================")
print("Core and Socket Information (as reported by '/proc/cpuinfo')")
print("============================================================\n")
print("cores = ", cores)
print("sockets = ", sockets)
print("")

max_processor_len = len(str(len(cores) * len(sockets) * 2 - 1))
max_core_map_len = max_processor_len * 2 + len('[, ]') + len('Socket ')
max_core_id_len = len(str(max(cores)))

print(" ".ljust(max_core_id_len + len('Core ')), end=' ')
for s in sockets:
    print("Socket %s" % str(s).ljust(max_core_map_len - len('Socket ')), end=' ')
print("")
print(" ".ljust(max_core_id_len + len('Core ')), end=' ')
for s in sockets:
    print("--------".ljust(max_core_map_len), end=' ')
print("")

for c in cores:
    print("Core %s" % str(c).ljust(max_core_id_len), end=' ')
    for s in sockets:
        print(str(core_map[(s, c)]).ljust(max_core_map_len), end=' ')
    print()