32-bit or 64 bit question

[Aashish Raj]

Hi,

1)How can i find whether the HP-UX OS is 32 bit or 64 bit
2)Is it possible to run 64 bit OS on 32 bit architecture.

[K.Vijayaragavan.]

"getconf KERNEL_BITS" command will show.
-Vijay

[Kurt Beyers.]

You can't run a 64 bit OS on a 32 bit architecture.

As of HP-UX 11; the OS is 64bit.

Kurt

[K.Vijayaragavan.]

Hi,

HP UX 11.00 comes with the option of selecting 64 bit OS or 32bit OS at the time of installation itself.

-K.Vijay

[K.Vijayaragavan.]

Hi,

If you have HPUX 11.00 , check the file "/etc/.supported_bits" file showing the list of HP9000 servers supporting
64 bit/32 bit 0S.

-Vijay

[K.Vijayaragavan. · Accepted solution]

See the below mentioned FAQ link,

From this we can understand that 32bit systems using PA7x00 CPUs won't suppport 64 bit OS.


http://devresource.hp.com/STK/hpux_faq.html/#C1

Q: why would I want to upgrade to HP-UX 11.0? Why use HP-UX 11.0 over 10.20?
A: HP-UX 11.0 offers 64-bit capability with expandability, scalability and potential performance improvements. 11.0 also supports kernel threads, NIS+, NFS PV3 and a host of other advanced features. HP-UX 11.0 also has a 32-bit capability to support legacy 32-bit systems using the PA-7x00 CPUs. At this time, you should consider updating directly to HP-UX 11i if your architecture supports it, for additional software functionality and standards compliance.

-Vijay

[Paula J Frazer-Campbell]

Hi

1. 'getconf KERNEL_BITS' will return whether you are running 32- or 64-bit.

2. 'getconf HW_32_64_CAPABLE' will show whether your processor is 64-bit capable or not.

3. To find the processor speed (MHz): echo itick_per_usec/D | adb -k stand/vmunix /dev/mem


Paula

[Trond Haugen]

All is answered but I would like to add that you can run 32bit applications on a 64 bits OS.

Regards,
Trond

[federico_3]

getconf KERNEL_BITS


Ciao
Federico