| neuralis | well, it's probably a month's work for a very talented developer | 12:02 |
|---|---|---|
| neuralis | so if someone spends an entire summer on it, he should have a comfortable margin for error | 12:03 |
| pygi | yup, we've already talked about it | 12:03 |
| neuralis | yeah, time to take a nap. take care. | 12:04 |
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| pygi | night neuralis | 12:06 |
| Plug | What's n-a? | 12:08 |
| lionelp | network authentication | 12:08 |
| J_P | neuralis: I am not have much experience with Linux cluster, but I am studyng to have :-) | 12:11 |
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| J_P | neuralis: well, so you don't recommend use ubuntu with openmosix beocuse need 2.4 right ? So is better use openmosix + 2.4 in sarge right ? | 12:12 |
| infinity | J_P: dapper+2.4 will work fine on i386. For other arches, it won't work at all. | 12:16 |
| infinity | J_P: If your whole cluster is i386, go ahead and use dapper... Keep in mind that you need modutils (not installed by default) to use modular 2.4 kernels... | 12:17 |
| J_P | infinity: hummm well, my cluster will be amd k7, p4 and amd64 ... | 12:19 |
| infinity | Right, the amd64 machines won't run 2.4 on dapper, at all. | 12:20 |
| infinity | Though, I suspect they may not run it on sarge either. | 12:21 |
| infinity | Unless you intend to use 32-bit kernels on them. | 12:21 |
| J_P | infinity: so There aren't solution for linux cluster kernel 2.6 ? | 01:05 |
| infinity | Probably lots (I'm not a cluster guy, I recommend asking maswan), just not likely to be OpenMosix. | 01:05 |
| J_P | infinity: thanks man! | 01:30 |
| Plug | I'm intrigued to see a rc.local in Ubuntu Server | 02:27 |
| Plug | that was a useful redhatism that Debian lost | 02:27 |
| ajmitch | afternoon | 02:29 |
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| nictuku | Plug, that will be avaliable in ubuntu 6.06 | 02:35 |
| Plug | yeah, i'm running the preview | 02:45 |
| J_P | why ubuntu server will have /etc/init.d/rc.local and /etc/rc.local ? | 03:51 |
| J_P | why not equal as debian ? | 03:52 |
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| fabbione | Plug: it's already there | 07:28 |
| fabbione | bah these are all FAQ | 07:28 |
| fabbione | clearly you need to have ini.d/rc.local to run rc.local | 07:28 |
| Plug | sorry fabbione, i'm intrigued to see that there is one, not "I'd like to see one there" | 07:58 |
| fabbione | oh ok | 07:58 |
| fabbione | i misunderstood your wording | 07:58 |
| ajmitch | must be the accent | 07:59 |
| fabbione | i blame gkt | 07:59 |
| fabbione | gtk | 07:59 |
| fabbione | ajmitch: so... did you put your hands on the T2000 ? | 07:59 |
| ajmitch | yes, but I still need to take photos for you | 07:59 |
| Plug | Isn't that a Terminator? :) | 08:00 |
| ajmitch | 4 of them lined up in the racks | 08:00 |
| fabbione | ajmitch: eheh neat... | 08:00 |
| fabbione | ajmitch: did you install Linux??? | 08:00 |
| ajmitch | of course | 08:00 |
| fabbione | or are you still running slowlaris? | 08:00 |
| fabbione | eheh | 08:00 |
| fabbione | cool | 08:00 |
| ajmitch | I said I got ubuntu on there last wednesday :) | 08:00 |
| fabbione | oh right | 08:00 |
| Plug | is the T2000 the one that Sun send you for freE? | 08:00 |
| ajmitch | and found the installer unbearably slow with the console through ALOM | 08:01 |
| fabbione | Plug: yeah that kindof box | 08:01 |
| fabbione | ajmitch: that's an hw design issue | 08:01 |
| ajmitch | I know | 08:01 |
| fabbione | ajmitch: already discussed with sun | 08:01 |
| fabbione | ah ok | 08:01 |
| fabbione | ajmitch: where are they hosted again? | 08:02 |
| fabbione | what uni | 08:02 |
| ajmitch | just with ncurses visibly repainting the whole screen, it was a good exercise in patience | 08:02 |
| ajmitch | otago uni, NZ | 08:02 |
| fabbione | ajmitch: ahah yeah | 08:02 |
| ajmitch | we had linux.conf.au here this year | 08:02 |
| fabbione | right | 08:02 |
| ajmitch | just got ubuntu on 1 so far, will get it on another this week | 08:03 |
| fabbione | did you try raid install? | 08:03 |
| ajmitch | not hardware raid | 08:03 |
| fabbione | i didn't even check how to make hw raid | 08:03 |
| fabbione | that's something to test | 08:03 |
| fabbione | i mean software raid | 08:04 |
| ajmitch | currently just using 1 disk, ran into a problem on sw raid in partitioning that I have to report | 08:04 |
| fabbione | what problem? | 08:04 |
| fabbione | i know what problem you found | 08:04 |
| ajmitch | that it didn't let me create a raid partition on the 2nd disk for no obvious reason | 08:04 |
| fabbione | ahhaha | 08:04 |
| fabbione | wrtong | 08:04 |
| fabbione | the problem is that md/lvm overwrites the first 512bytes of the disk | 08:04 |
| fabbione | that is BAD on sparc | 08:04 |
| fabbione | so the installer blocks you to create a raid/lvm partition as first partition on the disk | 08:05 |
| fabbione | it is for your own sake | 08:05 |
| fabbione | so what you do: | 08:05 |
| ajmitch | interesting | 08:05 |
| fabbione | leave a 1MB partition empty at the beginning of the disk | 08:05 |
| fabbione | on both disks | 08:05 |
| fabbione | say sdX1 | 08:05 |
| fabbione | sdX2 bacomes a 200MB /boot | 08:05 |
| fabbione | sdX3 lvm ro wahtever | 08:06 |
| fabbione | note that /boot can be on raid1 now :) | 08:06 |
| fabbione | i fixed that at easter | 08:06 |
| fabbione | :) | 08:06 |
| fabbione | but the first partition is limited | 08:06 |
| ajmitch | excellent, thanks :) | 08:06 |
| fabbione | there is really nothing i can do about it :( | 08:06 |
| ajmitch | doing the partitioning does take awhile in the installer | 08:07 |
| fabbione | ajmitch: btw did you figure out how to make hw raid? | 08:07 |
| ajmitch | probably best if I can just use fdisk | 08:07 |
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| ajmitch | no, I haven't found that out yet | 08:07 |
| fabbione | ajmitch: well you can.. but it's better if you do it with the partitioner | 08:07 |
| fabbione | ajmitch: i will not ensure a mixed install | 08:07 |
| ajmitch | alright | 08:07 |
| fabbione | also note.. | 08:08 |
| fabbione | there is an interesting issue with OBP/silo interaction when booting from a raid device | 08:08 |
| fabbione | i *think* i did fix it | 08:08 |
| fabbione | basically you might see an error on boot that says that "$random_numer is not elf executable" | 08:09 |
| fabbione | it looks like tha OBP keeps in it's data structure to boot for diskX | 08:09 |
| fabbione | when with a rait /boot you need to tell the OBP to boot from diskX:$partition | 08:09 |
| fabbione | the weird thing is that i got this issue in both direction | 08:09 |
| fabbione | meaning that i had diskX:$partition and i had to revert to disk | 08:10 |
| fabbione | it's probably OBP version dependent | 08:10 |
| fabbione | but i don't have enough OBP's around to make that sure | 08:10 |
| fabbione | (all of these is going in the release notes.. there is no way i can get it properly fixed for dapper=) | 08:10 |
| ajmitch | at the moment I'm hampered with the machines with lack of decent net access | 08:11 |
| === ajmitch will put all the various things about it on a blog or similar :) | ||
| === neuralis got the 8-core, 8gb ram t2000 yesterday | ||
| ajmitch | what's currently working with the hypervisor on the niagara? I saw something mentioned about xen, but haven't looked into it much | 08:15 |
| ajmitch | neuralis: nice | 08:15 |
| neuralis | SunOS gawain 5.10 Generic_118822-20 sun4v sparc SUNW,Sun-Fire-T200 | 08:16 |
| neuralis | ubuntu installation pending, after we're done with solaris benchmarks | 08:16 |
| fabbione | tsk | 08:23 |
| fabbione | http://www.stdlib.net/~colmmacc/category/niagara/ | 08:24 |
| fabbione | http://www.stdlib.net/~colmmacc/mv-res.html | 08:24 |
| fabbione | here are your benchmarks | 08:24 |
| fabbione | now .. go install ubuntu | 08:24 |
| ajmitch | heh | 08:25 |
| ajmitch | tune it, and watch it fly :) | 08:25 |
| fabbione | there is a reason why the guy did not tune it | 08:25 |
| fabbione | raw benchmarks out of the box is what most users will get because they do not know how to tune it | 08:26 |
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| neuralis | fabbione: we're having benchmarks done by a guy who wrote his thesis on large-system benchmarking, so i'm curious what his tools will come up with | 08:53 |
| fabbione | neuralis: fair enough :) | 08:54 |
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