| --- Log opened Sat Jun 30 00:00:17 2012 | ||
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| alexlovesdata | bye all | 03:20 |
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| blackburn | sonney2k: around? | 14:14 |
| @sonney2k | wassup | 14:41 |
| @sonney2k | blackburn, if you can please fix the buildbot errors - this is really highest prio now... | 14:46 |
| blackburn | sonney2k: sparse w/ python? | 14:47 |
| blackburn | I got stucked there a little yesterday | 14:47 |
| blackburn | sonney2k: can I ask you some debian things? | 14:47 |
| blackburn | ok leaving now for a while - will ask later :) | 14:53 |
| @sonney2k | blackburn, where did you get stuck? | 15:25 |
| @sonney2k | what is the problem? | 15:25 |
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| --- Log closed Sat Jun 30 16:34:24 2012 | ||
| --- Log opened Sat Jun 30 16:34:35 2012 | ||
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| --- Log closed Sat Jun 30 16:40:42 2012 | ||
| --- Log opened Sat Jun 30 16:46:53 2012 | ||
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| blackburn | sonney2k: with detecting error | 18:39 |
| @sonney2k | blackburn, ? | 18:46 |
| blackburn | sonney2k: yesterday I got stucked with detecting error | 18:46 |
| @sonney2k | doesn't valgrind help? | 18:46 |
| @sonney2k | I mean it must be due to the refcounting business | 18:46 |
| blackburn | yes it helps but I didn't localized the error | 18:47 |
| blackburn | sonney2k: how can I get bootable usb for installing debian? | 18:47 |
| @sonney2k | don't know out of my head | 18:48 |
| blackburn | they provide some crazy ways of installing it in debian doc | 18:48 |
| blackburn | is that really so complex? | 18:48 |
| blackburn | ok probably live version can be copied via dd | 18:54 |
| puffin444 | Hey blackburn can I ask you a question. | 18:55 |
| blackburn | sure | 18:55 |
| puffin444 | I'm trying to think of ways to reduce computational redundancy in my GP code, so I store kernel matrices and other calcuated matrices until parameters are changed. | 18:56 |
| puffin444 | This way they are not recalculated. A problem with this though is that when I use Heiko's model selection scheme to set parameters, the CMachine has no idea that parameters have been changed. | 18:57 |
| puffin444 | Do you what caching/matrix storage schemes have been used in the past to overcome these things? Heiko may have more information, but he is not here at the moment. | 18:58 |
| blackburn | uhh | 18:58 |
| puffin444 | Don't worry about it :) | 18:59 |
| blackburn | let me try to get into it | 18:59 |
| blackburn | so you work with CMachines | 18:59 |
| puffin444 | Yes. | 18:59 |
| blackburn | and you want to know when parameters are changed? | 19:00 |
| puffin444 | Exactly. | 19:00 |
| blackburn | I don't see how to get it done currently | 19:01 |
| blackburn | puffin444: that parameters framework actually don't know about changing parameters too | 19:02 |
| @sonney2k | puffin444, what you could do is extend the framework and e.g. compute the md5sum of all parameters | 19:03 |
| @sonney2k | if that sum changes | 19:03 |
| puffin444 | Would it be bad to add some abstract update() function to CMachine? Or is that just a lazy solution? | 19:03 |
| @sonney2k | -> parameters changed | 19:03 |
| blackburn | that would take some time for you puffin444 | 19:04 |
| blackburn | but actually it is worth I think | 19:04 |
| blackburn | void fire_parameter_changed(const char* name) | 19:05 |
| puffin444 | Is there an md5sum algorithm already in shogun, or would I have to use an external library/implement it myself? | 19:06 |
| @sonney2k | puffin444, yes there is | 19:06 |
| blackburn | why to compute md5? | 19:06 |
| @sonney2k | look at CHash | 19:06 |
| @sonney2k | blackburn, to see if parameters change | 19:07 |
| blackburn | sonney2k: well if set_* is called we can assume it is changed | 19:07 |
| @sonney2k | why? | 19:07 |
| blackburn | sonney2k: are you on debian sid now? | 19:08 |
| puffin444 | Okay. So would it make sense to add an md5sum member in SGObject that stores the md5sum of its model selection parameter tree? | 19:08 |
| @sonney2k | blackburn, yes | 19:10 |
| puffin444 | Or would simply a function that calculates an md5sum of a parameter tree suffice? | 19:10 |
| @sonney2k | puffin444, heiko is the expert here | 19:10 |
| @sonney2k | not sure what is best | 19:10 |
| puffin444 | okay. | 19:11 |
| blackburn | puffin444: why do you need to work with parameters at all? | 19:16 |
| blackburn | just curious | 19:16 |
| puffin444 | I use the model selection framework to do hyperparameter learning. Whenever one of those parameter changes I need to recalcuate the matrices I need. | 19:17 |
| blackburn | why is it so general? | 19:17 |
| puffin444 | The gradient search was written to be used with arbitrary machines. | 19:19 |
| blackburn | I see | 19:19 |
| blackburn | hah nice no wi-fi driver in debian live | 19:26 |
| blackburn | no display driver as well | 19:26 |
| blackburn | and I have no cable | 19:26 |
| @sonney2k | puffin444, btw I would go for a m_parameter_checksum in SGObject for the time being | 19:36 |
| puffin444 | Okay. I think I can write an MD5 sum function using CHash. | 19:36 |
| blackburn | will that approach require you to add anything to setters? | 19:37 |
| @sonney2k | puffin444, alternatively you can also use murmurhash2 (also in CHash) should be good enough I think | 19:37 |
| blackburn | hmm it failes here to link with nlopt for some reason | 19:50 |
| blackburn | I guess I compiled nlopt w/o shared | 19:51 |
| blackburn | sonney2k: hmm I just got I do what I did yesterday | 20:21 |
| blackburn | probably my commit went to hell | 20:21 |
| blackburn | I was really sure I pushed it | 20:21 |
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| @sonney2k | wiking, any news on your PR? | 20:37 |
| CIA-18 | shogun: Sergey Lisitsyn master * ra10eab1 / (3 files in 3 dirs): Fixed sparse matrix handling in static - http://git.io/356OIw | 20:39 |
| blackburn | sonney2k: found it in backups :D | 20:39 |
| blackburn | kind of mystic | 20:39 |
| blackburn | sonney2k: do you know where one should report if kernel does not detect whether AC adapter changes status? | 20:47 |
| @sonney2k | blackburn, reportbug <packagename> | 21:56 |
| @sonney2k | blackburn, or lkml | 21:56 |
| blackburn | no idea about package name :D | 21:56 |
| blackburn | I tried everything | 21:56 |
| blackburn | still acpi does not fire that AC is plugged | 21:57 |
| blackburn | state is being set correctly | 21:57 |
| blackburn | in /proc/acpi/battery | 21:57 |
| blackburn | the only bug left with my new notebook (I spent some time forcing it to produce lesser heat) | 21:58 |
| @sonney2k | blackburn, did you try to compile your own 3.4 / 3.5-rc kernel to see if it is fixed there? | 22:19 |
| blackburn | sonney2k: I installed 3.4 from kernel-ppa - no help here | 22:20 |
| @sonney2k | blackburn, then send an email to lkml asking for help | 22:20 |
| blackburn | sonney2k: problem is I am unsure it is a kernel bug | 22:20 |
| blackburn | sonney2k: /proc/ stuff updates perfectly - but acpi doesn't catch it | 22:21 |
| blackburn | may be I should try newer acpid? | 22:21 |
| blackburn | still the same with newer acpid argh | 22:33 |
| @sonney2k | cat /proc/acpi/ac_adapter/ADP1/state | 22:35 |
| @sonney2k | state: off-line | 22:35 |
| @sonney2k | cat /proc/acpi/ac_adapter/ADP1/state | 22:35 |
| @sonney2k | state: on-line | 22:35 |
| @sonney2k | blackburn, ^ it is all in kernel stuff | 22:36 |
| @sonney2k | so kernel bug | 22:36 |
| blackburn | sonney2k: that thing is being updated | 22:36 |
| blackburn | sonney2k: run acpi_listen and plug in / plug out your AC | 22:36 |
| blackburn | you should see some msgs here - I do not | 22:36 |
| @sonney2k | I don't have acpid installed | 22:37 |
| blackburn | hmm | 22:37 |
| blackburn | sonney2k: how does it detect whether you are running AC?? | 22:37 |
| @sonney2k | why should it detect it? | 22:38 |
| blackburn | well for gnome | 22:38 |
| @sonney2k | some gnome stuff no idea | 22:38 |
| blackburn | and for laptop mode | 22:38 |
| @sonney2k | I think upowerd does that | 22:38 |
| @sonney2k | which laptop mode? | 22:39 |
| blackburn | sonney2k: laptop-mode-tools package | 22:39 |
| @sonney2k | useless stuff... | 22:39 |
| blackburn | sonney2k: well it controls cpufreqd | 22:39 |
| @sonney2k | why that | 22:39 |
| @sonney2k | just use in kernel on-demand | 22:39 |
| blackburn | sonney2k: hmm well it has its own configuration | 22:40 |
| @sonney2k | snakeoil | 22:41 |
| blackburn | may be it could be a good idea to use only cpufreqd | 22:41 |
| @sonney2k | not even that | 22:43 |
| @sonney2k | just use ondemand in kernel | 22:43 |
| @sonney2k | *always* | 22:43 |
| blackburn | sonney2k: in kernel?? | 22:43 |
| blackburn | how do you handle that in kernel? | 22:44 |
| @sonney2k | echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor | 22:44 |
| @sonney2k | (and all your other cpu's) | 22:44 |
| blackburn | sonney2k: how do you make it persistent? | 22:44 |
| @sonney2k | put it in some init script | 22:45 |
| blackburn | sonney2k: do you have anything in /etc/cpufreqd.conf? | 22:47 |
| @sonney2k | I don't have that installed | 23:12 |
| @sonney2k | nite | 23:12 |
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| --- Log closed Sun Jul 01 00:00:17 2012 | ||
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