Memory and Processor for an Onyx2

[d***@gmail.com]

I recently got an Onyx 2. I was wondering what was the most advance
processor that SGI offered for it was? Does it have multiple cores?

And, when installing RAM how should I organize it to get the most
performance (interleaving) and largest continuous block?

Derek

[Joerg Behrens]

Post by d***@gmail.com
I recently got an Onyx 2. I was wondering what was the most advance
processor that SGI offered for it was? Does it have multiple cores?

Youre joking right?
The roadmap for the r18k processor was cancelt years ago..

Post by d***@gmail.com
And, when installing RAM how should I organize it to get the most
performance (interleaving) and largest continuous block?

An onxy2 deskside can only holds 2 nodeboards. So place 4gb on every boards.

regards
Joerg

[d***@gmail.com]

I also have an Origin 2100. The Onyx2 has one router board and the
Origin 2100 has two. Besides connecting a Cray cable from the Onyx2 to
the Origin 2100, what other changes do I need to make to connect the
two systems?

Its going to be a while before I can actually do this, I need to
install a couple of utility outlets in my apartment. I just need to
form a todo and shopping list before I get started.

Derek

[Joerg Behrens]

Post by d***@gmail.com
I also have an Origin 2100. The Onyx2 has one router board and the
Origin 2100 has two. Besides connecting a Cray cable from the Onyx2 to
the Origin 2100, what other changes do I need to make to connect the
two systems?

You cant craylink a onyx2 deskside to any other system.

Also keep in mind that a o2100 is limited to <= 8 cpus. A nodeboard from
a o2100 machine dont work in a larger config. The system abort the boot
process of the OS and print out a warn message.

regards
Joerg

[d***@gmail.com]

I tried installing a couple of node boards that were R10000 @ 250 Mhz.
On a wrning appears on the console saying I have 100 Mhz node plugged
into a 360 Mhz backplane. Is there a way I can correct for the speed
mismatch?

When I had the Cray Link card installed I also saw an error/warning
message saying I had a Cray Link configured for 90 Mhz plugged into 100
Mhz ... and I had to change the jumper settings. I found jumpers on the
Cray Link card, does anybody know the correct settings? Do I have to
change the jumper settings in the Onyx2?

Derek