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Elixir Cross Referencer

#! /usr/bin/python
#
#   BSD LICENSE
# 
#   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
#   All rights reserved.
# 
#   Redistribution and use in source and binary forms, with or without 
#   modification, are permitted provided that the following conditions 
#   are met:
# 
#     * Redistributions of source code must retain the above copyright 
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright 
#       notice, this list of conditions and the following disclaimer in 
#       the documentation and/or other materials provided with the 
#       distribution.
#     * Neither the name of Intel Corporation nor the names of its 
#       contributors may be used to endorse or promote products derived 
#       from this software without specific prior written permission.
# 
#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
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# 
#

import sys

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

fd=open("/proc/cpuinfo")
lines = fd.readlines()
fd.close()

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 ""

for s in sockets:
	print "\tSocket %s" % s,
print ""
for s in sockets:
	print "\t---------",
print ""

for c in cores:
	print "Core %s" % c,
	for s in sockets:
		print "\t", core_map[(s,c)],
	print "\n"