Search found 71 matches

by DDT
Tue Aug 22, 2017 6:35 pm
Forum: SGI: Hardware
Topic: Most powerful MIPS workstation?
Replies: 24
Views: 1092

Re: Most powerful MIPS workstation?

japes wrote:Are you saying Onyx2 deskside is not a compact workstation?


Ahem... I guess it is, compared to the 3900 ;)
by DDT
Tue Aug 22, 2017 7:11 am
Forum: SGI: Hardware
Topic: Most powerful MIPS workstation?
Replies: 24
Views: 1092

Re: Most powerful MIPS workstation?

Thanks, very interesting whitepaper. Seems that SGI's definition of "realtime graphics" is steady 60 Hz fps, which makes a lot of sense ! However, I meant generic GPU graphics rendering speed as opposed to batch frame rendering using CPU. If I understand correctly, it all boils down to IR4...
by DDT
Mon Aug 21, 2017 11:36 pm
Forum: SGI: Hardware
Topic: Most powerful MIPS workstation?
Replies: 24
Views: 1092

Re: Most powerful MIPS workstation?

Ok, back on topic: which is the most powerful MIPS workstation for realtime graphics ? Don't care about CPU. Please detail graphics option.
by DDT
Sun Aug 20, 2017 12:32 am
Forum: SGI: Discussion
Topic: SGI History Part 3 is here! This episode covers from 1993 to 1996.
Replies: 16
Views: 841

Re: SGI History Part 3 is here! This episode covers from 1993 to 1996.

o First to ensure that a rare and specific bug in floating point calculation that has been found in some older R8000 systems does not become an issue at JCU. I have run tests on Octopus and it would seem that this bug is not an issue for us at JCU. Uhm... I assume we are talking about the mysteriou...
by DDT
Fri Aug 18, 2017 2:57 am
Forum: SGI: Discussion
Topic: SGI History Part 3 is here! This episode covers from 1993 to 1996.
Replies: 16
Views: 841

Re: SGI History Part 3 is here! This episode covers from 1993 to 1996.

Dodoid wrote:
foetz wrote:the R8000 had floating point errors in 1998


What kind of errors ?
by DDT
Tue Jan 27, 2009 4:29 pm
Forum: SGI: Hardware
Topic: R8000 Indigo 2 problem.
Replies: 7
Views: 440

Re: R8000 Indigo 2 problem.

the only thing I am unsure about is the R8K module :( Bingo...looks like its bad. Did you re-seat the CPU also? Humm, I was afraid of that :( Yep, several times, have had the mainboard out too to make sure nothing had got under it and was causing a problem. I also checked with a multimeter the volt...
by DDT
Tue Jan 27, 2009 4:13 pm
Forum: Hardware Wanted
Topic: Looking to buy R8000 Indigo2
Replies: 19
Views: 936

Re: Looking to buy R8000 Indigo2

(This information has been obsoleted by history itself. There are reports of working R8000 Impact systems so there must be support in IRIX.) I find this an interesting quote by Gerhard, and I challenge anyone with such a system to show it ;) I'm aware of two versions of IP26 / R8000 PROMs * The ori...
by DDT
Sat Jan 19, 2008 3:55 pm
Forum: SGI: Hardware
Topic: Indigo2 R10K 175MHz vs 195MHz performance
Replies: 10
Views: 810

Re: Indigo2 R10K 175MHz vs 195MHz performance

The conclusion I draw from this is that the Indigo2 likes all three banks of RAM to be the same size for highest throughput. Uhm... this conclusion is not convincing. I would test 1 set at a time, always on the same system. Intermixing different sets with different timings may have side effects on ...
by DDT
Tue Dec 11, 2007 4:57 pm
Forum: SGI: Hardware
Topic: Making an Octane2 a bit less noisy...
Replies: 49
Views: 2440

Re: Making an Octane2 a bit less noisy...

Another method, rather out-of-the-box, would be to retune your ears. Six months in a foundry will knock off a lot of the little hairs inside there that make so much trouble. Or you could move to China, where the racket outside is so deafening that you have to put your hand on the Octane's case to m...
by DDT
Sun Dec 09, 2007 9:29 am
Forum: SGI: Hardware
Topic: set up smoke on Octane 2
Replies: 1
Views: 204

Re: set up smoke on Octane 2

louis123 wrote:i have an old smoke system and i what to upgrade my sgi on an Octane 2 that i have got ebay
is this possible i don't have so much experience in irix
can i use larger disc for storage?
thanks in advance


Larger than ?
Please type "hinv" and post again.
by DDT
Wed Nov 21, 2007 3:35 pm
Forum: SGI: Hardware
Topic: Dr. Dave's Indigo2 High-AA Impact GFX Hack - WORKS!
Replies: 30
Views: 2107

Re: Dr. Dave's Indigo2 High-AA Impact GFX Hack - WORKS!

SAQ writes: > In this case, though (hacked-AA), the GEs come from a Max boardset, so they should be the > faster models (right?), ... In theory, yes; are we sure both GEs are on a single board in the case of Max though? Never got round to checking. Sure at least for my boardsets. MaxI has two GEs o...
by DDT
Thu Oct 18, 2007 4:41 pm
Forum: SGI: Development
Topic: basic language
Replies: 30
Views: 2261

Re: basic language


int oneInt = 1;
char oneChar = '1';
if (oneInt == oneChar) {

Barkas wrote:And python does not train your mind into the limitations basic (or even C/C++) has - like types or brackets.
}
else {

..Types and brackets are NOT a limitation :)
}
by DDT
Sun Oct 07, 2007 2:42 pm
Forum: SGI: Development
Topic: basic language
Replies: 30
Views: 2261

Re: basic language

Suggesting that assembler should be used after BASIC was funny though. We are no longer in the 80's... Nik. Hi Nik, As weird as it seems, skipping Assembly is the reason why there are a lot of mediocre programmers. Your sentence sounds like: "To learn how to drive a car, it is not a good idea ...
by DDT
Wed Oct 03, 2007 2:31 pm
Forum: SGI: Development
Topic: basic language
Replies: 30
Views: 2261

Re: basic language

BASIC really isn't useful for anything. It might be better teaching him another interpreted language that has real-world use, like Perl, Python or Ruby. All of these are available on IRIX. In fact, IRIX ships with Perl (old version, but there anyway). hmm - I bet the whole generation of programmers...
by DDT
Wed Oct 03, 2007 2:01 pm
Forum: SGI: Hardware
Topic: Indigo2 R10K 175MHz vs 195MHz performance
Replies: 10
Views: 810

Re: Indigo2 R10K 175MHz vs 195MHz performance

Maybe one has 50ns RAM, and the other 60ns? The numbers seem to exhibit a 6:5 ratio ... You might want to check what RAM these systems have, and/or swap it between them. Exactly. For CPU tests, just swap the CPU board on the same system, for RAM test just swap the RAM on the same system. Just simpl...

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