regan_russell wrote:
Thanks for all the very useful advice.
joerg wrote:
Ok. thanks. I guess that means that the IRIX versions should be the same as well.
Regan
?. Its always a SSI (single system image), so, when the partition feature isnt used, you always runs one IRIX version.
regards
Joerg
Yes, but without the NUMA link, two different versions of IRIX were installed, which in turn meant that PROMs versions were different.
Your hinv shows a 2module setup. So i expect that you have connected both machines and start up the OS. Use flash now to update the old prom versions. Without the -o switch flash doenst update the proms who are already up to date.
I'd like to run the 600MHz as master
Maybe this only effected I/O (disks) performance and not cpu. You canot expect that the sheduler always asign the tasks to the first or fastest CPUs.
which means it should become 01c01 and the 500MHz should become 01c02..? I will start reading documentation tonight unless you have a quick answer.
Connect with a serial to the L1 controller and enter printenv/help or what ever. Iam not in my office. I expect there is something like module_id or similar.
The "01c02" means rack 01 and position 02 in the rack (counting from the bottom). On a offical SGI rack they have a numbering printed on the rack.
For example:
If you have 2 Powerbays which each use 3U high, and your first Cbrick after that it will have the number 001c07 and the secone one 001c10 because each Cbrick is also 3U hight.
I think this is only a numbering for identifying the bricks in a rack. The docs "says" that the lowest Cbrick have to be the "first" one, this is also the Brick the the I Brick is connected to.
But I expect that the ordering depends to the module_ids and not from that simple naming scheme.
Also I think I understand the architecture a little more now. Without a router board you could have one I/O expansion, for example a Px brick off each compute module. Four modules in total.
I am now looking to another NUMA link cable. If you have a contact that would sell me one please.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=300160329350
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=300160329290
You didnt responce in the IRC for a couple of days. If i buy these items for you please confirm this. I already bought SGI stuff from that seller. For me it was a little bit pricy but i like to have some spare parts around for my machine.
I wonder if you have a 4 CPU MIPS Pro Compiler License and you upgrade your machine, how that would affect the license... hmm... Legally and technically..?
This only effects the number of tasks running on the same time. Do you ever used "gmake -j8"?
regards
Joerg