| --- Log opened Thu May 18 00:00:34 2017 | ||
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| mikeling | wiking: ping | 03:12 |
|---|---|---|
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| @wiking | pong | 06:39 |
| mikeling | wiking: Hi, do you have time to review this pr https://github.com/shogun-toolbox/shogun/pull/3812? Due to all checks passed | 07:09 |
| mikeling | I just wondering if those variable and file names maybe confuse other people | 07:09 |
| @wiking | yep yeep | 07:09 |
| @wiking | saw it | 07:09 |
| @wiking | just checking | 07:09 |
| mikeling | * may confuse other people | 07:10 |
| mikeling | thank you! | 07:10 |
| @wiking | life is confusing | 07:12 |
| @wiking | mikeling, there | 07:18 |
| @wiking | mikeling, so | 07:26 |
| @wiking | this thing with Cdatagenerator | 07:26 |
| @wiking | as well as Gaussian | 07:26 |
| mikeling | yep | 07:26 |
| @wiking | using lapack | 07:26 |
| @wiking | is crazy | 07:26 |
| @wiking | can we put this PR to sleep mode and you switch first to this? | 07:26 |
| @wiking | Gaussian -> linalg:: ? | 07:27 |
| mikeling | yeah, actually I had discuss it with Heikos and OXPHOS | 07:28 |
| mikeling | about should I rewrite it by linalg or eigen3 | 07:29 |
| mikeling | at least make Gaussian get rid of the lapack | 07:29 |
| mikeling | but at that time OXPHOS told me there are many places need to refactor and we should leave it for now | 07:35 |
| @wiking | mmm | 07:35 |
| @wiking | let's have a plan for it then in gsoc? | 07:36 |
| @wiking | i mean if it's really that complicated | 07:36 |
| @wiking | this is definitely something we need asap :) | 07:36 |
| mikeling | I agree | 07:36 |
| mikeling | ok, I will take it | 07:36 |
| mikeling | but I don't have a good mathematic background and I haven't use eigen3 or take a good look at linalg lib | 07:38 |
| mikeling | I really need some help about those things | 07:38 |
| mikeling | anyway, I hate those macro | 07:39 |
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| mikeling | wiking: what's the meaning of cblas_dger (https://github.com/MikeLing/shogun/blob/develop/src/shogun/distributions/Gaussian.cpp#L169). I just google it but haven't found any detail document for it | 08:41 |
| mikeling | about what's this function for? | 08:41 |
| mikeling | OXPHOS ping? | 08:42 |
| @wiking | mikeling, Multiplies vector X by the transform of vector Y, then adds matrix A (double precison). | 08:43 |
| @wiking | mikeling, https://developer.apple.com/reference/accelerate/1513076-cblas_dger?language=objc | 08:44 |
| @wiking | alpha*x*y' + A. | 08:45 |
| @wiking | basically | 08:45 |
| mikeling | ok, I see. Thank you! | 08:55 |
| lisitsyn | wiking: obvious naming they have in blas and lapack huh | 09:02 |
| lisitsyn | :) | 09:02 |
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| @iglesiasg | http://www.kdnuggets.com/2017/05/new-poll-software-analytics-data-mining-data-science-machine-learning.html :( | 10:16 |
| @wiking | ahhaha | 10:38 |
| @wiking | not even on the list | 10:38 |
| @wiking | :D | 10:38 |
| @wiking | nor mlpack :(( | 10:38 |
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| @wiking | mikeling, HeikoS i think at least we should be able to have a Gaussian that falls back to some basic linalg implementation if lapack is not available | 12:24 |
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| mikeling | mikeling: which means we will have two Gaussian distribution in the code base at the same time? | 13:27 |
| mikeling | lapack version and without lapack version | 13:28 |
| @wiking | mikeling, nono | 13:56 |
| @wiking | you can use a #ifdef HAVE_LAPACK #else | 13:56 |
| @wiking | macor | 13:56 |
| @wiking | *macro | 13:56 |
| @wiking | within the Gaussian codebase | 13:56 |
| @wiking | and in case you have lapack you can use the lapack code to do the matrix calculation | 13:57 |
| @wiking | otherwise it falls back to use linalg:: | 13:57 |
| mikeling | wiking: If we already have a Gaussian version without lapack, why do we still need the old version(which implemented by lapack ) | 14:03 |
| @wiking | because it could be that the new verison | 14:03 |
| @wiking | *version is not as fast as the old one | 14:03 |
| @wiking | :) | 14:03 |
| @wiking | mikeling, i mean you just have to reimplement the lapack part | 14:22 |
| @wiking | in the code | 14:22 |
| @wiking | and guard it with those macros | 14:22 |
| @wiking | not the full class itself | 14:22 |
| mikeling | ok, I see. | 14:24 |
| mikeling | sorry for the late reply :) | 14:24 |
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| @wiking | nw | 14:25 |
| rcurtin | wiking: looks like not even tensorflow is on the list | 14:47 |
| rcurtin | there is a lot missing... whoever put that list together does not have a full perspective | 14:47 |
| rcurtin | oh wait there it is under 'deep learning', I didn't see that part :) | 14:48 |
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| shixudongleo | I want to use shogun c++ in android ndk. it is possible to compile shogun as shared library on android. What is the library dependencies for shogun? | 15:34 |
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| mikeling | what's our linalg namespace about? Do we have matrix-matrix multiplication in there? | 15:53 |
| mikeling | alright, I found it http://shogun.ml/api/latest/namespaceshogun_1_1linalg.html | 15:56 |
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| mikeling | wiking: maybe we could use SGMatrix in here https://github.com/shogun-toolbox/shogun/blob/develop/src/shogun/distributions/Gaussian.cpp#L143 | 16:20 |
| mikeling | because we have buildin function like matrix_multiply and (matri) add | 16:22 |
| mikeling | maybe use SGMatrix and SGVector could help us get rid of LAPACK | 16:22 |
| mikeling | but I'm not sure if it will slow things down | 16:22 |
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| @sukey | Pull Request #3818 "Update install instructions for homebrew" opened by duhduhdan - https://github.com/shogun-toolbox/shogun/pull/3818 | 18:21 |
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| --- Log closed Fri May 19 00:00:36 2017 | ||
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