cpuinfo.py

#!/usr/bin/env python
"""
cpuinfo

Copyright 2002 Pearu Peterson all rights reserved,
Pearu Peterson <pearu@cens.ioc.ee>

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

  a. Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimer.
  b. 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.
  c. Neither the name of the Enthought 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 REGENTS OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.

$Revision: 1.6 $
$Date: 2004/10/04 09:30:54 $
Pearu Peterson
"""

__version__ = "$Id: cpuinfo.py,v 1.6 2004/10/04 09:30:54 pearu Exp $"

__all__ = ['cpu']

import sys,string,re,types

class cpuinfo_base:
    """Holds CPU information and provides methods for requiring
    the availability of various CPU features.
    """

    def _try_call(self,func):
        try:
            return func()
        except:
            pass

    def __getattr__(self,name):
        if name[0]!='_':
            if hasattr(self,'_'+name):
                attr = getattr(self,'_'+name)
                if type(attr) is types.MethodType:
                    return lambda func=self._try_call,attr=attr : func(attr)
            else:
                return lambda : None
        raise AttributeError,name    

    def _getNCPUs(self):
        return 1

    def _is_32bit(self):
        return not self.is_64bit()

class linux_cpuinfo(cpuinfo_base):

    info = None
    
    def __init__(self):
        if self.info is not None:
            return
        info = []
        try:
            for line in open('/proc/cpuinfo').readlines():
                name_value = map(string.strip,string.split(line,':',1))
                if len(name_value)!=2:
                    continue
                name,value = name_value
                if not info or info[-1].has_key(name): # next processor
                    info.append({})
                info[-1][name] = value
            import commands
            status,output = commands.getstatusoutput('uname -m')
            if not status:
                if not info: info.append({})
                info[-1]['uname_m'] = string.strip(output)
        except:
            print sys.exc_value,'(ignoring)'
        self.__class__.info = info

    def _not_impl(self): pass

    # Athlon

    def _is_AMD(self):
        return self.info[0]['vendor_id']=='AuthenticAMD'

    def _is_AthlonK6_2(self):
        return self._is_AMD() and self.info[0]['model'] == '2'

    def _is_AthlonK6_3(self):
        return self._is_AMD() and self.info[0]['model'] == '3'

    def _is_AthlonK6(self):
        return re.match(r'.*?AMD-K6',self.info[0]['model name']) is not None

    def _is_AthlonK7(self):
        return re.match(r'.*?AMD-K7',self.info[0]['model name']) is not None

    def _is_AthlonMP(self):
        return re.match(r'.*?Athlon\(tm\) MP\b',
                        self.info[0]['model name']) is not None

    def _is_Athlon64(self):
        return re.match(r'.*?Athlon\(tm\) 64\b',
                        self.info[0]['model name']) is not None

    def _is_AthlonHX(self):
        return re.match(r'.*?Athlon HX\b',
                        self.info[0]['model name']) is not None

    def _is_Opteron(self):
        return re.match(r'.*?Opteron\b',
                        self.info[0]['model name']) is not None

    def _is_Hammer(self):
        return re.match(r'.*?Hammer\b',
                        self.info[0]['model name']) is not None

    # Alpha

    def _is_Alpha(self):
        return self.info[0]['cpu']=='Alpha'

    def _is_EV4(self):
        return self.is_Alpha() and self.info[0]['cpu model'] == 'EV4'

    def _is_EV5(self):
        return self.is_Alpha() and self.info[0]['cpu model'] == 'EV5'

    def _is_EV56(self):
        return self.is_Alpha() and self.info[0]['cpu model'] == 'EV56'

    def _is_PCA56(self):
        return self.is_Alpha() and self.info[0]['cpu model'] == 'PCA56'

    # Intel

    #XXX
    _is_i386 = _not_impl

    def _is_Intel(self):
        return self.info[0]['vendor_id']=='GenuineIntel'

    def _is_i486(self):
        return self.info[0]['cpu']=='i486'

    def _is_i586(self):
        return self.is_Intel() and self.info[0]['cpu family'] == '5'

    def _is_i686(self):
        return self.is_Intel() and self.info[0]['cpu family'] == '6'

    def _is_Celeron(self):
        return re.match(r'.*?Celeron',
                        self.info[0]['model name']) is not None

    def _is_Pentium(self):
        return re.match(r'.*?Pentium',
                        self.info[0]['model name']) is not None

    def _is_PentiumII(self):
        return re.match(r'.*?Pentium.*?II\b',
                        self.info[0]['model name']) is not None

    def _is_PentiumPro(self):
        return re.match(r'.*?PentiumPro\b',
                        self.info[0]['model name']) is not None

    def _is_PentiumMMX(self):
        return re.match(r'.*?Pentium.*?MMX\b',
                        self.info[0]['model name']) is not None

    def _is_PentiumIII(self):
        return re.match(r'.*?Pentium.*?III\b',
                        self.info[0]['model name']) is not None

    def _is_PentiumIV(self):
        return re.match(r'.*?Pentium.*?(IV|4)\b',
                        self.info[0]['model name']) is not None

    def _is_Itanium(self):
        return re.match(r'.*?Itanium\b',
                        self.info[0]['model name']) is not None

    def _is_XEON(self):
        return re.match(r'.*?XEON\b',
                        self.info[0]['model name']) is not None


    # Varia

    def _is_singleCPU(self):
        return len(self.info) == 1

    def _getNCPUs(self):
        return len(self.info)

    def _has_fdiv_bug(self):
        return self.info[0]['fdiv_bug']=='yes'

    def _has_f00f_bug(self):
        return self.info[0]['f00f_bug']=='yes'

    def _has_mmx(self):
        return re.match(r'.*?\bmmx\b',self.info[0]['flags']) is not None

    def _has_sse(self):
        return re.match(r'.*?\bsse\b',self.info[0]['flags']) is not None

    def _has_sse2(self):
        return re.match(r'.*?\bsse2\b',self.info[0]['flags']) is not None

    def _has_sse3(self):
        return re.match(r'.*?\bsse3\b',self.info[0]['flags']) is not None

    def _has_3dnow(self):
        return re.match(r'.*?\b3dnow\b',self.info[0]['flags']) is not None

    def _has_3dnowext(self):
        return re.match(r'.*?\b3dnowext\b',self.info[0]['flags']) is not None

    def _is_64bit(self):
        if self.is_Alpha():
            return 1
        if self.info[0].get('clflush size','')=='64':
            return 1
        if self.info[0]['uname_m']=='x86_64':
            return 1
        return 0

class irix_cpuinfo(cpuinfo_base):

    info = None
    
    def __init__(self):
        if self.info is not None:
            return
        info = []
        try:
            import commands
            status,output = commands.getstatusoutput('sysconf')
            if status not in [0,256]:
                return
            for line in output.split('\n'):
                name_value = map(string.strip,string.split(line,' ',1))
                if len(name_value)!=2:
                    continue
                name,value = name_value
                if not info:
                    info.append({})
                info[-1][name] = value
        except:
            print sys.exc_value,'(ignoring)'
        self.__class__.info = info

        #print info
    def _not_impl(self): pass

    def _is_singleCPU(self):
        return self.info[0].get('NUM_PROCESSORS') == '1'

    def _getNCPUs(self):
        return int(self.info[0].get('NUM_PROCESSORS'))

    def __cputype(self,n):
        return self.info[0].get('PROCESSORS').split()[0].lower() == 'r%s' % (n)
    def _is_r2000(self): return self.__cputype(2000)
    def _is_r3000(self): return self.__cputype(3000)
    def _is_r3900(self): return self.__cputype(3900)
    def _is_r4000(self): return self.__cputype(4000)
    def _is_r4100(self): return self.__cputype(4100)
    def _is_r4300(self): return self.__cputype(4300)
    def _is_r4400(self): return self.__cputype(4400)
    def _is_r4600(self): return self.__cputype(4600)
    def _is_r4650(self): return self.__cputype(4650)
    def _is_r5000(self): return self.__cputype(5000)
    def _is_r6000(self): return self.__cputype(6000)
    def _is_r8000(self): return self.__cputype(8000)
    def _is_r10000(self): return self.__cputype(10000)
    def _is_r12000(self): return self.__cputype(12000)
    def _is_rorion(self): return self.__cputype('orion')

    def get_ip(self):
        try: return self.info[0].get('MACHINE')
        except: pass
    def __machine(self,n):
        return self.info[0].get('MACHINE').lower() == 'ip%s' % (n)
    def _is_IP19(self): return self.__machine(19)
    def _is_IP20(self): return self.__machine(20)
    def _is_IP21(self): return self.__machine(21)
    def _is_IP22(self): return self.__machine(22)
    def _is_IP22_4k(self): return self.__machine(22) and self._is_r4000()
    def _is_IP22_5k(self): return self.__machine(22)  and self._is_r5000()
    def _is_IP24(self): return self.__machine(24)
    def _is_IP25(self): return self.__machine(25)
    def _is_IP26(self): return self.__machine(26)
    def _is_IP27(self): return self.__machine(27)
    def _is_IP28(self): return self.__machine(28)
    def _is_IP30(self): return self.__machine(30)
    def _is_IP32(self): return self.__machine(32)
    def _is_IP32_5k(self): return self.__machine(32) and self._is_r5000()
    def _is_IP32_10k(self): return self.__machine(32) and self._is_r10000()

class darwin_cpuinfo(cpuinfo_base):

    info = None
    
    def __init__(self):
        if self.info is not None:
            return
        info = []
        try:
            import commands
            status,output = commands.getstatusoutput('arch')
            if not status:
                if not info: info.append({})
                info[-1]['arch'] = string.strip(output)
            status,output = commands.getstatusoutput('machine')
            if not status:
                if not info: info.append({})
                info[-1]['machine'] = string.strip(output)
            status,output = commands.getstatusoutput('sysctl hw')
            if not status:
                if not info: info.append({})
                d = {}
                for l in string.split(output,'\n'):
                    l = map(string.strip,string.split(l, '='))
                    if len(l)==2:
                        d[l[0]]=l[1]
                info[-1]['sysctl_hw'] = d
        except:
            print sys.exc_value,'(ignoring)'
        self.__class__.info = info

    def _not_impl(self): pass

    def _getNCPUs(self):
        try: return int(self.info[0]['sysctl_hw']['hw.ncpu'])
        except: return 1

    def _is_Power_Macintosh(self):
        return self.info[0]['sysctl_hw']['hw.machine']=='Power Macintosh'

    def _is_i386(self):
        return self.info[0]['arch']=='i386'
    def _is_ppc(self):
        return self.info[0]['arch']=='ppc'

    def __machine(self,n):
        return self.info[0]['machine'] == 'ppc%s'%n
    def _is_ppc601(self): return self.__machine(601)
    def _is_ppc602(self): return self.__machine(602)
    def _is_ppc603(self): return self.__machine(603)
    def _is_ppc603e(self): return self.__machine('603e')
    def _is_ppc604(self): return self.__machine(604)
    def _is_ppc604e(self): return self.__machine('604e')
    def _is_ppc620(self): return self.__machine(620)
    def _is_ppc630(self): return self.__machine(630)
    def _is_ppc740(self): return self.__machine(740)
    def _is_ppc7400(self): return self.__machine(7400)
    def _is_ppc7450(self): return self.__machine(7450)
    def _is_ppc750(self): return self.__machine(750)
    def _is_ppc403(self): return self.__machine(403)
    def _is_ppc505(self): return self.__machine(505)
    def _is_ppc801(self): return self.__machine(801)
    def _is_ppc821(self): return self.__machine(821)
    def _is_ppc823(self): return self.__machine(823)
    def _is_ppc860(self): return self.__machine(860)

class sunos_cpuinfo(cpuinfo_base):

    info = None
    
    def __init__(self):
        if self.info is not None:
            return
        info = []
        try:
            import commands
            status,output = commands.getstatusoutput('arch')
            if not status:
                if not info: info.append({})
                info[-1]['arch'] = string.strip(output)
            status,output = commands.getstatusoutput('mach')
            if not status:
                if not info: info.append({})
                info[-1]['mach'] = string.strip(output)
            status,output = commands.getstatusoutput('uname -i')
            if not status:
                if not info: info.append({})
                info[-1]['uname_i'] = string.strip(output)
            status,output = commands.getstatusoutput('uname -X')
            if not status:
                if not info: info.append({})
                d = {}
                for l in string.split(output,'\n'):
                    l = map(string.strip,string.split(l, '='))
                    if len(l)==2:
                        d[l[0]]=l[1]
                info[-1]['uname_X'] = d
            status,output = commands.getstatusoutput('isainfo -b')
            if not status:
                if not info: info.append({})
                info[-1]['isainfo_b'] = string.strip(output)
            status,output = commands.getstatusoutput('isainfo -n')
            if not status:
                if not info: info.append({})
                info[-1]['isainfo_n'] = string.strip(output)
            status,output = commands.getstatusoutput('psrinfo -v 0')
            if not status:
                if not info: info.append({})
                for l in string.split(output,'\n'):
                    m = re.match(r'\s*The (?P<p>[\w\d]+) processor operates at',l)
                    if m:
                        info[-1]['processor'] = m.group('p')
                        break
        except:
            print sys.exc_value,'(ignoring)'
        self.__class__.info = info

    def _not_impl(self): pass

    def _is_32bit(self):
        return self.info[0]['isainfo_b']=='32'
    def _is_64bit(self):
        return self.info[0]['isainfo_b']=='64'

    def _is_i386(self):
        return self.info[0]['isainfo_n']=='i386'
    def _is_sparc(self):
        return self.info[0]['isainfo_n']=='sparc'
    def _is_sparcv9(self):
        return self.info[0]['isainfo_n']=='sparcv9'

    def _getNCPUs(self):
        try: return int(self.info[0]['uname_X']['NumCPU'])
        except: return 1

    def _is_sun4(self):
        return self.info[0]['arch']=='sun4'

    def _is_SUNW(self):
        return re.match(r'SUNW',self.info[0]['uname_i']) is not None
    def _is_sparcstation5(self):
        return re.match(r'.*SPARCstation-5',self.info[0]['uname_i']) is not None
    def _is_ultra1(self):
        return re.match(r'.*Ultra-1',self.info[0]['uname_i']) is not None
    def _is_ultra250(self):
        return re.match(r'.*Ultra-250',self.info[0]['uname_i']) is not None
    def _is_ultra2(self):
        return re.match(r'.*Ultra-2',self.info[0]['uname_i']) is not None
    def _is_ultra30(self):
        return re.match(r'.*Ultra-30',self.info[0]['uname_i']) is not None
    def _is_ultra4(self):
        return re.match(r'.*Ultra-4',self.info[0]['uname_i']) is not None
    def _is_ultra5_10(self):
        return re.match(r'.*Ultra-5_10',self.info[0]['uname_i']) is not None
    def _is_ultra5(self):
        return re.match(r'.*Ultra-5',self.info[0]['uname_i']) is not None
    def _is_ultra60(self):
        return re.match(r'.*Ultra-60',self.info[0]['uname_i']) is not None
    def _is_ultra80(self):
        return re.match(r'.*Ultra-80',self.info[0]['uname_i']) is not None
    def _is_ultraenterprice(self):
        return re.match(r'.*Ultra-Enterprise',self.info[0]['uname_i']) is not None
    def _is_ultraenterprice10k(self):
        return re.match(r'.*Ultra-Enterprise-10000',self.info[0]['uname_i']) is not None
    def _is_sunfire(self):
        return re.match(r'.*Sun-Fire',self.info[0]['uname_i']) is not None
    def _is_ultra(self):
        return re.match(r'.*Ultra',self.info[0]['uname_i']) is not None

    def _is_cpusparcv7(self):
        return self.info[0]['processor']=='sparcv7'
    def _is_cpusparcv8(self):
        return self.info[0]['processor']=='sparcv8'
    def _is_cpusparcv9(self):
        return self.info[0]['processor']=='sparcv9'

class win32_cpuinfo(cpuinfo_base):

    info = None
    pkey = "HARDWARE\\DESCRIPTION\\System\\CentralProcessor"
    # XXX: what does the value of
    #   HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0
    # mean?

    def __init__(self):
        if self.info is not None:
            return
        info = []
        try:
            #XXX: Bad style to use so long `try:...except:...`. Fix it!
            import _winreg
            pkey = "HARDWARE\\DESCRIPTION\\System\\CentralProcessor"
            prgx = re.compile(r"family\s+(?P<FML>\d+)\s+model\s+(?P<MDL>\d+)"\
                              "\s+stepping\s+(?P<STP>\d+)",re.IGNORECASE)
            chnd=_winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE,pkey)
            pnum=0
            while 1:
                try:
                    proc=_winreg.EnumKey(chnd,pnum)
                except _winreg.error:
                    break
                else:
                    pnum+=1
                    print proc
                    info.append({"Processor":proc})
                    phnd=_winreg.OpenKey(chnd,proc)
                    pidx=0
                    while True:
                        try:
                            name,value,vtpe=_winreg.EnumValue(phnd,pidx)
                        except _winreg.error:
                            break
                        else:
                            pidx=pidx+1
                            info[-1][name]=value
                            if name=="Identifier":
                                srch=prgx.search(value)
                                if srch:
                                    info[-1]["Family"]=int(srch.group("FML"))
                                    info[-1]["Model"]=int(srch.group("MDL"))
                                    info[-1]["Stepping"]=int(srch.group("STP"))
        except:
            print sys.exc_value,'(ignoring)'
        self.__class__.info = info

    def _not_impl(self): pass

    # Athlon

    def _is_AMD(self):
        return self.info[0]['VendorIdentifier']=='AuthenticAMD'

    def _is_Am486(self):
        return self.is_AMD() and self.info[0]['Family']==4

    def _is_Am5x86(self):
        return self.is_AMD() and self.info[0]['Family']==4

    def _is_AMDK5(self):
        return self.is_AMD() and self.info[0]['Family']==5 \
               and self.info[0]['Model'] in [0,1,2,3]

    def _is_AMDK6(self):
        return self.is_AMD() and self.info[0]['Family']==5 \
               and self.info[0]['Model'] in [6,7]

    def _is_AMDK6_2(self):
        return self.is_AMD() and self.info[0]['Family']==5 \
               and self.info[0]['Model']==8

    def _is_AMDK6_3(self):
        return self.is_AMD() and self.info[0]['Family']==5 \
               and self.info[0]['Model']==9

    def _is_Athlon(self):
        return self.is_AMD() and self.info[0]['Family']==6

    def _is_Athlon64(self):
        return self.is_AMD() and self.info[0]['Family']==15 \
               and self.info[0]['Model']==4

    def _is_Opteron(self):
        return self.is_AMD() and self.info[0]['Family']==15 \
               and self.info[0]['Model']==5

    # Intel

    def _is_Intel(self):
        return self.info[0]['VendorIdentifier']=='GenuineIntel'

    def _is_i386(self):
        return self.info[0]['Family']==3

    def _is_i486(self):
        return self.info[0]['Family']==4

    def _is_i586(self):
        return self.is_Intel() and self.info[0]['Family']==5

    def _is_i686(self):
        return self.is_Intel() and self.info[0]['Family']==6

    def _is_Pentium(self):
        return self.is_Intel() and self.info[0]['Family']==5

    def _is_PentiumMMX(self):
        return self.is_Intel() and self.info[0]['Family']==5 \
               and self.info[0]['Model']==4

    def _is_PentiumPro(self):
        return self.is_Intel() and self.info[0]['Family']==6 \
               and self.info[0]['Model']==1

    def _is_PentiumII(self):
        return self.is_Intel() and self.info[0]['Family']==6 \
               and self.info[0]['Model'] in [3,5,6]

    def _is_PentiumIII(self):
        return self.is_Intel() and self.info[0]['Family']==6 \
               and self.info[0]['Model'] in [7,8,9,10,11]

    def _is_PentiumIV(self):
        return self.is_Intel() and self.info[0]['Family']==15

    # Varia

    def _is_singleCPU(self):
        return len(self.info) == 1

    def _getNCPUs(self):
        return len(self.info)

    def _has_mmx(self):
        if self.is_Intel():
            return (self.info[0]['Family']==5 and self.info[0]['Model']==4) \
                   or (self.info[0]['Family'] in [6,15])
        elif self.is_AMD():
            return self.info[0]['Family'] in [5,6,15]

    def _has_sse(self):
        if self.is_Intel():
            return (self.info[0]['Family']==6 and \
                    self.info[0]['Model'] in [7,8,9,10,11]) \
                    or self.info[0]['Family']==15
        elif self.is_AMD():
            return (self.info[0]['Family']==6 and \
                    self.info[0]['Model'] in [6,7,8,10]) \
                    or self.info[0]['Family']==15

    def _has_sse2(self):
        return self.info[0]['Family']==15

    def _has_3dnow(self):
        # XXX: does only AMD have 3dnow??
        return self.is_AMD() and self.info[0]['Family'] in [5,6,15]

    def _has_3dnowext(self):
        return self.is_AMD() and self.info[0]['Family'] in [6,15]

if sys.platform[:5] == 'linux': # variations: linux2,linux-i386 (any others?)
    cpuinfo = linux_cpuinfo
elif sys.platform[:4] == 'irix':
    cpuinfo = irix_cpuinfo
elif sys.platform == 'darwin':
    cpuinfo = darwin_cpuinfo
elif sys.platform[:5] == 'sunos':
    cpuinfo = sunos_cpuinfo
elif sys.platform[:5] == 'win32':
    cpuinfo = win32_cpuinfo
elif sys.platform[:6] == 'cygwin':
    cpuinfo = linux_cpuinfo
#XXX: other OS's. Eg. use _winreg on Win32. Or os.uname on unices.
else:
    cpuinfo = cpuinfo_base

cpu = cpuinfo()

if __name__ == "__main__":

    cpu.is_blaa()
    cpu.is_Intel()
    cpu.is_Alpha()

    print 'CPU information:',
    for name in dir(cpuinfo):
        if name[0]=='_' and name[1]!='_':
            r = getattr(cpu,name[1:])()
            if r:
                if r!=1:
                    print '%s=%s' %(name[1:],r),
                else:
                    print name[1:],
    print