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#1 (**permalink**) 01-16-2008, 07:04 PM

Hi All,
My current application is a
o 32-bit server
o Compiling and running on HP-UX 11.11
o PA-RISC 32-bit
o aCC compiler (aCC: HP ANSI C++ B3910B A.03.27)
o Using VisiBroker for C++ 4.5

I have (or will have next week) an Itanium station running HP-UX.

My question is regarding the porting I need to do:

1. Does the aCC compiler, on Itanium, support 32-bit applications, or
do I have to port to 64-bit?
2. Does anyone have experience with VisiBroker on Itanium?

Thanks!

Allon.

#2 (**permalink**) 01-16-2008, 07:04 PM

"Allon Dafner" <allon.dafner@gmail.com> writes:

> 1. Does the aCC compiler, on Itanium, support 32-bit applications

Most definitely:

$ aCC -c junk.c
$ file junk.o
junk.o: ELF-32 relocatable object file - IA64

Your port could be as simple as a recompile.
In fact, your PA-RISC binary will likely work even without a
recompile.

Cheers,
--
In order to understand recursion you must first understand recursion.
Remove /-nsp/ for email.

#3 (**permalink**) 01-16-2008, 07:04 PM

Paul Pluzhnikov <ppluzhnikov-nsp@charter.net> wrote:
> "Allon Dafner" <allon.dafner@gmail.com> writes:
>> 1. Does the aCC compiler, on Itanium, support 32-bit applications

> Most definitely:

> $ aCC -c junk.c
> $ file junk.o
> junk.o: ELF-32 relocatable object file - IA64

As you can see, the default is 32-bit.

When you are ready to compile 64-bit you would add +DD64 to the
compile flags. The docs/manpages for aCC may also describe settings
to enable more complete warnings and/or warnings for 64-bit migration.

rick jones
--
oxymoron n, Hummer H2 with California Save Our Coasts and Oceans plates
these opinions are mine, all mine; HP might not want them anyway...

feel free to post, OR email to raj in cup.hp.com but NOT BOTH...

#4 (**permalink**) 01-16-2008, 07:05 PM

Thanks to you both!
I read about the "Aries" subsystem as it is called, which as I
understood can run my PA-RISC binaries "as-is"

Do you have any experience with it?
Will it work with all of my 3rd parties (Oracle-OCI, VisiBroker
client)?
Are there any benchmarks detailing the performance downgrade I can
expect?

Thanks again,

Allon.

#5 (**permalink**) 01-16-2008, 07:05 PM

"Allon Dafner" <allon.dafner@gmail.com> writes:

> Will it work with all of my 3rd parties (Oracle-OCI, VisiBroker
> client)?

Not with the _native_ libraries: you can't link together PA-RISC
and IA64 code.

But you should be able to copy your existing PA-RISC Oracle and
VisiBroker libraries (i.e. copy your entire PA-RISC package).

> Are there any benchmarks detailing the performance downgrade I can
> expect?

It depends on what your app does. Most DB/CORBA apps I've seen
spend great deal of time waiting for messages or the DB (i.e. are
not CPU-bound). Such an app may perform sufficiently well even with
PA-RISC emulation.

Cheers,
--
In order to understand recursion you must first understand recursion.
Remove /-nsp/ for email.

#6 (**permalink**) 01-16-2008, 07:05 PM

Great - thanks!
One last issue: as you can see I'm using a pretty old aCC compiler (HP
ANSI C++ B3910B A.03.27) should I expect any problems there?

Thanks again - youv'e been a great help!

#7 (**permalink**) 01-16-2008, 07:05 PM

"Allon Dafner" <allon.dafner@gmail.com> writes:

> One last issue: as you can see I'm using a pretty old aCC compiler (HP
> ANSI C++ B3910B A.03.27) should I expect any problems there?

The aCC is one of the "pickier" C++ compilers around, and has been
since A.01 ... If your code compiles cleanly with A.03.27, I would
not expect too many problems compiling with A.05

Cheers,
--
In order to understand recursion you must first understand recursion.
Remove /-nsp/ for email.

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Can HP-UX on Itanium compile and run 32-bit applications?