Sun Solaris - Find out number of processors and cores

Our SPARC server is running Sun Solaris 10; I would like to find out the actual number of processors and the number of cores for each processor.

The output of psrinfo and prtdiag is ambiguous:

$psrinfo -v
Status of virtual processor 0 as of: dd/mm/yyyy hh:mm:ss
  on-line since dd/mm/yyyy hh:mm:ss.
  The sparcv9 processor operates at 1592 MHz,
        and has a sparcv9 floating point processor.
Status of virtual processor 1 as of: dd/mm/yyyy hh:mm:ss
  on-line since dd/mm/yyyy hh:mm:ss.
  The sparcv9 processor operates at 1592 MHz,
        and has a sparcv9 floating point processor.
Status of virtual processor 2 as of: dd/mm/yyyy hh:mm:ss
  on-line since dd/mm/yyyy hh:mm:ss.
  The sparcv9 processor operates at 1592 MHz,
        and has a sparcv9 floating point processor.
Status of virtual processor 3 as of: dd/mm/yyyy hh:mm:ss
  on-line since dd/mm/yyyy hh:mm:ss.
  The sparcv9 processor operates at 1592 MHz,
        and has a sparcv9 floating point processor.

_

$prtdiag -v
System Configuration: Sun Microsystems  sun4u Sun Fire V445
System clock frequency: 199 MHZ
Memory size: 32GB
==================================== CPUs ====================================
               E$          CPU                    CPU
CPU  Freq      Size        Implementation         Mask    Status      Location
---  --------  ----------  ---------------------  -----   ------      --------
0    1592 MHz  1MB         SUNW,UltraSPARC-IIIi    3.4    on-line     MB/C0/P0
1    1592 MHz  1MB         SUNW,UltraSPARC-IIIi    3.4    on-line     MB/C1/P0
2    1592 MHz  1MB         SUNW,UltraSPARC-IIIi    3.4    on-line     MB/C2/P0
3    1592 MHz  1MB         SUNW,UltraSPARC-IIIi    3.4    on-line     MB/C3/P0

_

$more /etc/release
                       Solaris 10 8/07 s10s_u4wos_12b SPARC
           Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                            Assembled 16 August 2007
                          Patch Cluster - EIS 29/01/08(v3.1.5)

What other methods can I use?

EDITED:

It looks like we have a 4 processor system with one core each:

$psrinfo -p
4

_

$psrinfo -pv
The physical processor has 1 virtual processor (0)
  UltraSPARC-IIIi (portid 0 impl 0x16 ver 0x34 clock 1592 MHz)
The physical processor has 1 virtual processor (1)
  UltraSPARC-IIIi (portid 1 impl 0x16 ver 0x34 clock 1592 MHz)
The physical processor has 1 virtual processor (2)
  UltraSPARC-IIIi (portid 2 impl 0x16 ver 0x34 clock 1592 MHz)
The physical processor has 1 virtual processor (3)
  UltraSPARC-IIIi (portid 3 impl 0x16 ver 0x34 clock 1592 MHz)

From serverfault Adrian

• There's always

  dmesg
  

  I suspect your prtdiag -v though lists the cores quite nicely in the Location field. Looks like you have a single CPU, quad core?

  Brian Knoblauch : Hmmm, That's what it looks like, but I don't believe there was ever a quad core UltraSPARC-IIIi available!

  christianwolff : The Sun homepage says nothing about cores for this type of server (and CPU). I think the count of physical is 4 with one core each. But we'll see what psrinfo -pv says :-)
  From Michael Graff

• The command psrinfo -pv is the command you are looking for. It gives you the number of physical cpus plus the count of virtual processor per physical processor.

  For example on a V880 it looks like this:

  The physical processor has 1 virtual processor (0)
    UltraSPARC-III+ (portid 0 impl 0x15 ver 0x23 clock 900 MHz)
  The physical processor has 1 virtual processor (1)
    UltraSPARC-III+ (portid 1 impl 0x15 ver 0x23 clock 900 MHz)
  The physical processor has 1 virtual processor (2)
    UltraSPARC-III+ (portid 2 impl 0x15 ver 0x23 clock 900 MHz)
  The physical processor has 1 virtual processor (3)
    UltraSPARC-III+ (portid 3 impl 0x15 ver 0x23 clock 900 MHz)
  The physical processor has 1 virtual processor (4)
    UltraSPARC-III+ (portid 4 impl 0x15 ver 0x23 clock 900 MHz)
  The physical processor has 1 virtual processor (5)
    UltraSPARC-III+ (portid 5 impl 0x15 ver 0x23 clock 900 MHz)
  The physical processor has 1 virtual processor (6)
    UltraSPARC-III+ (portid 6 impl 0x15 ver 0x23 clock 900 MHz)
  The physical processor has 1 virtual processor (7)
    UltraSPARC-III+ (portid 7 impl 0x15 ver 0x23 clock 900 MHz)
  

  Hope that helps. :-)

  EDIT

  A multicore machine has e.g. this output

  The physical processor has 4 virtual processors (0-3)
    SPARC64-VI (portid 1024 impl 0x6 ver 0x93 clock 2150 MHz)
  The physical processor has 4 virtual processors (8-11)
    SPARC64-VI (portid 1032 impl 0x6 ver 0x93 clock 2150 MHz)
  

  slovon : And a T1000 looks like: The physical processor has 16 virtual processors (0-15) UltraSPARC-T1 (cpuid 0 clock 1000 MHz)

  slovon : And an X4170 looks like: The physical processor has 8 virtual processors (0-7) x86 (chipid 0x0 GenuineIntel family 6 model 26 step 5 clock 2267 MHz) Intel(r) Xeon(r) CPU E5520 @ 2.27GHz
  From christianwolff

• Not sure if it helps, but a dual-processor UltraSPARC-IIIi box shows up like this:

  0 1280 MHz 1MB SUNW,UltraSPARC-IIIi 2.4 on-line MB/CPU0 1 1280 MHz 1MB SUNW,UltraSPARC-IIIi 2.4 on-line MB/CPU1

  From Brian Knoblauch

• You can check the number of physical processors using the psrinfo -p command.

  root@sunt2000:/ # uname -a SunOS sunt2000 5.10 Generic_139555-08 sun4v sparc SUNW,Sun-Fire-T200

  Checking the number of physical processors

  root@sunt2000:/ # psrinfo

  -p 1

  Verbose output from the same command above.

  root@sunt2000:/ # psrinfo -vp

  The physical processor has 32 virtual processors (0-31)

  UltraSPARC-T1 (chipid 0, clock 1200 MHz)

  Below is a Sun Fire V445 that has the UltraSPARC IIIi and it is single core.

  root@sunv445:/ # uname -a

  SunOS sunv445 5.10 Generic_120011-14 sun4u sparc SUNW,Sun-Fire-V445

  root@sunv445:/ # psrinfo

  0 on-line since 11/05/2008 04:27:24

  1 on-line since 11/05/2008 04:27:24

  2 on-line since 11/05/2008 04:27:16

  It has 3 physical processors.

  root@sunv445:/ # psrinfo -p

  3

  I believe only UltraSPARCs IV are dual core. No issues with IIIi

  root@sunv445:/ # psrinfo -vp

  The physical processor has 1 virtual processor (0)

  UltraSPARC-IIIi (portid 0 impl 0x16 ver 0x34 clock 1592 MHz)

  The physical processor has 1 virtual processor (1)

  UltraSPARC-IIIi (portid 1 impl 0x16 ver 0x34 clock 1592 MHz)

  The physical processor has 1 virtual processor (2)

  UltraSPARC-IIIi (portid 2 impl 0x16 ver 0x34 clock 1592 MHz)

  From setatakahashi

• The information reported by "kstat cpu_info" can be used to work out how many processors (sockets) you have, how many cores per processor, and how many CMP threads per core.

  If you don't care about the distinction between cores and CMP threads, "psrinfo -pv" will suffice.

  From Michael Fuller

• Total number of cores in a system is "kstat cpu_info | grep core_id | uniq | wc -l" Divide the total number of cores by the output of "psrinfo -p" to get the cores per physical processor

  From $pageUsers[$post.author].name

• Thank u very much

  From $pageUsers[$post.author].name