Open in new window / Try shogun cloud
--- Log opened Fri Jul 11 00:00:10 2014
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shogun-buildbotbuild #744 of nightly_all is complete: Failure [failed compile test]  Build details are at http://buildbot.shogun-toolbox.org/builders/nightly_all/builds/744  blamelist: abinashpanda <abinash.panda.ece10@itbhu.ac.in>, tklein23 <tklein23@users.noreply.github.com>03:05
shogun-buildbotbuild #848 of nightly_default is complete: Failure [failed compile]  Build details are at http://buildbot.shogun-toolbox.org/builders/nightly_default/builds/848  blamelist: abinashpanda <abinash.panda.ece10@itbhu.ac.in>, tklein23 <tklein23@users.noreply.github.com>03:07
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shogun-notifier-shogun: Saurabh :develop * ab2aa11 / doc/ipython-notebooks/classification/SupportVectorMachines.ipynb: https://github.com/shogun-toolbox/shogun/commit/ab2aa11659a99bb06203ecfeb60cb6c0415058a512:46
shogun-notifier-shogun: extend svm nb12:46
shogun-notifier-shogun: Saurabh :develop * a213d63 / doc/ipython-notebooks/classification/SupportVectorMachines.ipynb: https://github.com/shogun-toolbox/shogun/commit/a213d63b18ae88d347c418087fbe1fc02dad47d212:46
shogun-notifier-shogun: revamp structure, add math12:46
shogun-notifier-shogun: Saurabh :develop * 29d3f46 / doc/ipython-notebooks/classification/SupportVectorMachines.ipynb: https://github.com/shogun-toolbox/shogun/commit/29d3f46a34094f670ef29dbf26711867e75fe83812:46
shogun-notifier-shogun: cleanups12:46
shogun-notifier-shogun: Saurabh :develop * 3960adf / doc/ipython-notebooks/classification/SupportVectorMachines.ipynb: https://github.com/shogun-toolbox/shogun/commit/3960adfd1489e6845dc54e4f98aa49760046453912:46
shogun-notifier-shogun: add example12:46
shogun-notifier-shogun: Heiko Strathmann :develop * 9ccd6ca / doc/ipython-notebooks/classification/SupportVectorMachines.ipynb: https://github.com/shogun-toolbox/shogun/commit/9ccd6caa768f73d2ce2113b9133e53efdfa4609112:46
shogun-notifier-shogun: Merge pull request #2318 from Saurabh7/svmnb12:46
shogun-notifier-shogun:12:46
shogun-notifier-shogun: extend svm nb12:46
shogun-notifier-shogun-demo: Saurabh :master * 5312856 / util/importer.py: https://github.com/shogun-toolbox/shogun-demo/commit/5312856e53991769002af1997409ba6b7ff6175c12:49
shogun-notifier-shogun-demo: update dataset importer12:49
shogun-notifier-shogun-demo: Heiko Strathmann :master * 1f25516 / util/importer.py: https://github.com/shogun-toolbox/shogun-demo/commit/1f255163f512c26c6102a66490309b548cafeda212:49
shogun-notifier-shogun-demo: Merge pull request #52 from Saurabh7/master12:49
shogun-notifier-shogun-demo:12:49
shogun-notifier-shogun-demo: update dataset importer12:49
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shogun-buildbotbuild #3084 of deb1 - libshogun is complete: Failure [failed compile]  Build details are at http://buildbot.shogun-toolbox.org/builders/deb1%20-%20libshogun/builds/3084  blamelist: Saurabh <saurabh.mahindre@gmail.com>14:19
shogun-buildbotbuild #3085 of deb1 - libshogun is complete: Failure [failed compile test]  Build details are at http://buildbot.shogun-toolbox.org/builders/deb1%20-%20libshogun/builds/3085  blamelist: Heiko Strathmann <heiko.strathmann@gmail.com>, Saurabh <saurabh.mahindre@gmail.com>14:36
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lisitsynkhalednasr: hey21:52
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khalednasrlisitsyn, hey21:52
lisitsynkhalednasr: I am just recovering from my job exit beer and will be soon ready to talk about gpu stuff :D21:53
lisitsynkhalednasr: will you be there still in a half of an hour?21:53
khalednasrlisitsyn, haha, yeah :D21:54
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lisitsynkhalednasr: ok let me see what guys think22:24
khalednasrlisitsyn, ok22:24
lisitsynkhalednasr: it is not very clear for me whether lambday is ok to merge :D22:26
khalednasrlisitsyn, the PR has to be modified before merging22:27
khalednasrto address the issues we discussed22:27
lisitsynkhalednasr: how do we address 1), 2), 3)&22:28
lisitsyn?22:28
khalednasrlisitsyn, for 1, we could modify the functions so that the result vector/matrix is an argument to the function22:29
lisitsynso it would be22:29
lisitsynsum(x,y,result)22:29
lisitsynright?22:29
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khalednasryeah, for column/row wise sums22:29
khalednasrregular sums don't really need that, since they just return a number22:30
lisitsynsure22:30
lisitsynkhalednasr: is my understanding correct22:30
lisitsyneach time we do this operation22:31
lisitsynwe create some colwise_sum object?22:31
khalednasrlisitsyn, do you mean an instance of the colwise_sum struct?22:32
lisitsynkhalednasr: yes22:32
khalednasrlisitsyn, nope, all the methods in the struct are static, so we don't have to create an instance22:32
lisitsynkhalednasr: ah ok22:32
lisitsynkhalednasr: ok got it, we just solve partial specialization problem this way22:33
khalednasrlisitsyn, yeah22:33
lisitsynkhalednasr: alright so 1) is quite ok22:33
lisitsynwe don't really change anything but add one more parameter22:33
khalednasrlisitsyn, yup22:34
lisitsynkhalednasr: what about 2)?22:34
khalednasrlisitsyn, for 2, we could remove all the function overloads that explicitly take an eigen3 matrix22:35
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khalednasrand let eigen3 matrices be handles implicitly using the SGMatrix cast operators22:35
khalednasrhandled*22:35
lisitsynah so we have22:36
lisitsynSGMatrix(Eigen3::MatrixXd)22:36
lisitsynwhich is called there22:36
khalednasryup22:36
lisitsynthat sounds cool22:36
lisitsynif we go for AnyKindOfOtherLibrary22:36
lisitsynwe just add it to sgmatrix22:36
khalednasryeah, that'll make our lives easier :)22:38
lisitsynkhalednasr: and 3)?22:38
khalednasrlisitsyn, we could the backend-dependent matrix/vector class we talk about earlier22:39
lisitsynkhalednasr: it looks quite useful22:40
khalednasrso developers who want to allow their algorithms to run on either GPU/CPU would just use that class22:40
lisitsynkhalednasr: do you have any idea what time would it take to address these things?22:40
khalednasrlisitsyn, not much, I'll probably finish them tomorrow22:41
lisitsynkhalednasr: that's cool22:41
lisitsynkhalednasr: what about having something to make neural nets gpu-able?22:42
lisitsynkhalednasr: I am afraid I need some explanation what has to be done22:42
khalednasrlisitsyn, first we need to add ViennaCL backend to the sum functions22:43
khalednasrlisitsyn, and then add more methods that are necessary for neural nets22:43
khalednasrmatrix multiplication, addition, and so on22:43
lisitsynkhalednasr: do I get it right you'd need to add these things for neural layers?22:44
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khalednasrlisitsyn, I'm not sure I get what you mean22:44
lisitsynkhalednasr: I mean are specific neural layers the only parts that need to be changed?22:45
khalednasrlisitsyn, unfortunately no22:45
jiaolongHi guys, what is the best way to do vector<vector<T>>  in shougun with SGVector?22:46
lisitsynahh yeah I see we have some linalng in RBMs as well22:46
khalednasrlisitsyn, there're everywhere :D22:46
jiaolongI don't like SGVector<T*>22:46
lisitsynjiaolong: hey, you mean std::vector?22:46
jiaolongyes22:46
lisitsynuhmm do you really need one?22:46
lisitsynkhalednasr: yeah sure I just mean if you have dot product22:47
jiaolonglisitsyn: I don't know if there is some alternative way in shogun22:47
khalednasrlisitsyn, anything that modifies the main matrices/vectors used in the algorithm will have to be through the linalg library22:47
lisitsynjiaolong: I mean you'd need vector<vector<>> if you have something dynamic22:48
lisitsynis that the case?22:48
jiaolonglisitsyn: yes, I need22:48
jiaolonglisitsyn: yes, it is the case22:48
lisitsynhmm I see22:48
lisitsynjiaolong: do you need to create it once and treat as sgvector later?22:50
lisitsynor is that something that is dynamic all the time?22:50
lisitsynkhalednasr: it looks like gpu stuff is more tough :D22:50
jiaolonglisitsyn: dynamic all the time22:50
lisitsynjiaolong: hmm then sgvector would be very tough to use22:51
jiaolonglisitsyn: yes22:51
lisitsynjiaolong: I don't see anything from shogun to cope with that22:52
lisitsynyou'd either stick with vector<vector<<> or add some class for that :)22:52
jiaolonglisitsyn: OK, thanks, then I will try to think about other data structure  :)22:53
khalednasrjiaolong, lisitsyn maybe CDynamicArray would work?22:53
lisitsynkhalednasr: yeah but it is 1d22:54
lisitsynahhh22:54
lisitsynit is not22:54
lisitsyn:D22:54
khalednasrI mean CDynamicArray<SGVector<T>>22:54
lisitsynjiaolong: you need cdynamicarray22:54
jiaolongkhalednasr: yeah, it can work, but I just need vector <vector<int>>, not ashogun object22:54
lisitsynit is 1d and 2d and 3d22:54
lisitsynahh22:55
lisitsynbut why?22:55
jiaolongkhalednasr: lisitsyn CDynamicArray<SGVector<T>> looks good22:55
lisitsynkhalednasr: am I right it would be cool to start with layers?22:55
khalednasrlisitsyn, yeah22:56
khalednasrlisitsyn, we'll probably need to add some sort of a SpecialPurpose module to the library, for all the algorithm specific operations22:57
lisitsynyou'd need some opencl kernels to do some stuff, right?22:57
khalednasrlisitsyn, yup22:57
khalednasrlisitsyn, but they'll mostly be simple kernel, since most of the operations are elementwise22:58
lisitsynkhalednasr: ok then just let me know when you're done with PR changes22:58
lisitsynand we can push viennacl stuff a bit more22:59
khalednasrlisitsyn, ok cool22:59
lisitsynI wrote some opencl code so I would be able to help you22:59
lisitsynI'd suggest to gpu-ize one neural net22:59
lisitsynand then I can also help you to rewrite some code with gpu22:59
lisitsynI mean if it is quite mechanical why not to do that in parallel :)23:00
khalednasrlisitsyn, in parallel, pun intended? :D23:01
lisitsynkhalednasr: haha23:01
khalednasrlisitsyn, cool :)23:02
lisitsynkhalednasr: ok gonna sleep now, could you please mail me once you're done?23:02
khalednasrlisitsyn, sure23:02
lisitsynwith pr thing23:02
lisitsynthen see you tomorrow23:02
khalednasrlisitsyn, goodnight23:02
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--- Log closed Sat Jul 12 00:00:11 2014