My CPU is 32bit or 64bit?

Simply type the following command and if you see lm (Long Mode) in output, you have a 64 bit CPU based system.

$ grep flags /proc/cpuinfo | grep -i lm

$ if `grep flags /proc/cpuinfo | grep -i " lm " > /dev/null`; then echo "32-bit and 64-bit Architecture"; else echo "32-bit Architecture"; fi

CPU Modes:

lm flag means Long mode cpu - 64 bit CPU

Real mode 16 bit CPU

Protected Mode is 32-bit CPU

AIX CPU Info

There are number of commands to show what are the current number of processors and their information.

1. show processor multithreading capacibility, number of processor, and how many "core" they have. run smtctl below without any options with ROOT user.

$ smtctl
This system is SMT capable.

SMT is currently enabled.

SMT boot mode is not set.
SMT threads are bound to the same physical processor.

proc0 has 2 SMT threads.
Bind processor 0 is bound with proc0
Bind processor 1 is bound with proc0

proc2 has 2 SMT threads.
Bind processor 2 is bound with proc2
Bind processor 3 is bound with proc2

2. show processor model and their clockspeed

$ lsconf|grep Processor

Processor Type: PowerPC_POWER6

Processor Implementation Mode: POWER 6

Processor Version: PV_6

Number Of Processors: 2

Processor Clock Speed: 3826 MHz

  Model Implementation: Multiple Processor, PCI bus

 proc0                                        Processor

 proc2                                        Processor

3. show processor clock speed

$ pmcycles -m

CPU 0 runs at 4204 MHz

CPU 1 runs at 4204 MHz

4. show processor related to your lpar

$ lparstat -i

Node Name                                  : webserver

Partition Name                             : 06-759DA

Partition Number                           : 1

Type                                       : Dedicated-SMT

Mode                                       : Capped

Entitled Capacity                          : 2.00

Partition Group-ID                         : 32769

Shared Pool ID                             : -

Online Virtual CPUs                        : 2

Maximum Virtual CPUs                       : 2

Minimum Virtual CPUs                       : 1

Online Memory                              : 15680 MB

Maximum Memory                             : 16384 MB

Minimum Memory                             : 256 MB

Variable Capacity Weight                   : -

Minimum Capacity                           : 1.00

Maximum Capacity                           : 2.00

Capacity Increment                         : 1.00

Maximum Physical CPUs in system            : 2

Active Physical CPUs in system             : 2

Active CPUs in Pool                        : -

Shared Physical CPUs in system             : 0

Maximum Capacity of Pool                   : 0

Entitled Capacity of Pool                  : 0

Unallocated Capacity                       : -

Physical CPU Percentage                    : 100.00%

Unallocated Weight                         : -