what is the meaning of PA-RISC 2 systems?

[soutiger_1]

I want to download the Java(1.4.2.06) for rp8400. But there are two versions, one is for IA, one is for PA-RISC 2 systems. I don't know the meaning of "PA-RISC 2 systems" is.
Which is the same as PA-RISC?

[Patrick Wallek]

PA-RISC 2 is most likely referring to the architecture of the system. It probably should actually be PA-RISC 2.0. The PA-RISC 2 version IS what you want for the rp8400.

Much much older architecture systems were PA-RISC 1.1, but those have been out of date for SEVERAL years now.

[soutiger_1]

thanks very much!

[周江淮]

Hi,
Does PA-RISC 2 have any relation with PA-8800 dual core CPU?
Also,does there have a table listing which CPU model or server model belong to special PA-RISC version?

Thanks.

[Devesh Pant_1]

I think Patric is right and here is how you can find out what CPU you have
/usr/sbin/diag/contrib/pdcinfo -no_banner

thanks
Devesh

[周江淮]

Hi,
pdcinfo return following:
CPU(0) PA8700 3.1

How the CPU version 3.1 match PA-RISC version?

Thanks.

[Thayanidhi]

Hi,

Run

getconf _SC_CPU_VERSION

If it returns 528 or 529, then its PARISC 1.1

If it returns 532 Means PARISC 2.0

Hope this helps

Regds
TT

[C. Beerse_1]

As far as I know, the PA-RISC processor families have the next base:

PA-RISC 1.0: 32-bit processors with a glitch, hence the update to 1.1.

PA-RISC 1.1: 32-bit processors. CPU numbers are 7000 and upwards

PA-RISC 2.0: 64-bit processors. CPU numbers are 8000 and upwards

For a nice and more detailed overview: http://www.openpa.net/cpu.html

For your info, the pa-risc 2.0 series are upwards compatible and most pa-risc 2.0 systems can run in 32-bit mode or can run 1.1 binaries. Hence if you have the choice and need compatibility or need to be sure it works, pick the 1.1. If you need performance, try 2.0.

[Binu_2]

The various revisions of PA-RISC
Rev Bits Rel Models
==========================================================================
1.0 32-bit '86 TS1, NS, NS1, CS1, NS2, PCx
1.1 32-bit '89 PA7000 (PCx-S), PA7100 (PCx-T), PA7150 (PCx-T+),
PA7100LC (PCx-L), PA7200 (PCx-T'), PA7300LC (PCx-L2)
2.0 64-bit '94 PA8000 (PCx-U), PA8200 (PCx-U+), PA8500 (PCx-W),
PA8600 (PCx-W+),PA8700 (PCx-W2), PA8800, PA8900

The PA-RISC 2.0 architecture represents the first time that user-visible
changes have been made to the core integer architecture. In addition to
support for 64-bit integer data and 64-bit flat addresses, other
user-visible changes have also been added to enhance the performance of
new user workloads. For example, Multimedia Acceleration eXtensions (MAX)
have been added to speedup multimedia processing by software running on
the main processor, rather than on separate optional hardware. Some
additional floating-point and system-level changes have also been added.


check this link
http://www.unixguide.net/hp/faq/8.33.shtml

Thanks
Binu

[周江淮]

Hi everyone,
Thanks much for all your answer,especially to great information from Binu , C. Beerse and Thayanidhi.

Best Regards.