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Message Posted: Mon, 12 Nov 2001 @ 22:17:45 GMT

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Subj:   Re: Teradata on UNIX
From:   Charles Farley

Perhaps I'm not reading this correctly,

That or my memories of how compilers work is shot... But, I believe that any code compiled in a platform specific compiler (gcc, fer instance), produces machine code specific to the platform the compiler is written for. Mostly this is due to registers, and instructions. But what I see here is the idea that CISC chip code will run (non-re-compiled) on a RISC based system??? I don't think that'll work, I humbly ask to be proven wrong.

You may be able to re-compile some things and have them work on separate platforms (a good example of this is code that runs on Solaris for Sparc and X86 Solaris), and I've seen Linux code re-compile quite nicely for other platforms, but I don't know about teradata. I did hear rumors that there were full Sparc systems setup and running Teradata at NCR when Sun was the hot deal and it looked as though Solaris X86 was going to be the next big thing, then that fell through, but that was Sparc. I'm not sure about PowerPC chips and Motorola (if that's still IBM's AIX chip). I know I have a couple of cross-compilers around here, and they are really cool, but sometimes I have code that will compile for one platform, and need some serious tweaks to go on another.

If it's written in C, that's a good start, at least it's not in assembler or some strange language. Porting is still a major effort, and I don't know what kind of shape NCR is in in the way of developers. Many firms let a lot of people go because they were not interested in spending much more on devel right now. I'd say there should be some good deals on developers if they decide to change, I'd think they have them anyway for the conversion to a 64-bit platform, but I'm not sure what that entails.

I'm still hoping NCR comes up with a winner in all of this, I'm certainly frustrated with the news I've been getting, and I can't say that my confidence is high right now, but I still have much faith in NCR and their technical people, why not?

Please correct me if I'm suffering from Alzheimers,


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