| --- Log opened Sat May 09 00:00:17 2015 | ||
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| @lambday | lisitsyn: hey! | 13:29 |
|---|---|---|
| lisitsyn | lambday: hey | 13:30 |
| @lambday | lisitsyn: how are things? | 13:30 |
| lisitsyn | ah fine what about you? | 13:30 |
| @lambday | lisitsyn: just got your comment on that | 13:30 |
| @lambday | lisitsyn: didn't get what you meant by "Actually you don't need rewriting operators for basic types - just operators of Parameter and float/int so that any multiplication/addition/etc goes inside your object that represents expression." | 13:31 |
| lisitsyn | ok let me explain | 13:31 |
| lisitsyn | you have say | 13:31 |
| lisitsyn | 2*Parameter(blabla) | 13:31 |
| @lambday | ok | 13:31 |
| lisitsyn | you need operator*(float, Parameter) | 13:31 |
| @lambday | yes | 13:32 |
| lisitsyn | and operator*(Parameter, Parameter) | 13:32 |
| @lambday | but say I have a non-parametric thing in my expression.. | 13:32 |
| lisitsyn | you don't need custom operator*(float, float) | 13:32 |
| @lambday | like -2*sin(98235) | 13:32 |
| lisitsyn | that sounds like a constant | 13:33 |
| lisitsyn | that can be precomputed | 13:33 |
| @lambday | hmm yes that can be done | 13:33 |
| @lambday | ok I got it | 13:33 |
| lisitsyn | lambday: I wouldn't bother that much :) | 13:37 |
| lisitsyn | format is good already I think | 13:37 |
| @lambday | lisitsyn: yeah this one looks neat as well | 13:37 |
| @lambday | lisitsyn: sending PR with that one then | 13:37 |
| @lambday | lisitsyn: one interesting thing is that, I tried viennacl/opencl with both cpu and gpu | 13:39 |
| @lambday | lisitsyn: and in my machine it turned out that cpu is even faster | 13:39 |
| lisitsyn | notebook? | 13:39 |
| @lambday | my graphics card is intel ivybridge integrated one | 13:39 |
| lisitsyn | ah | 13:39 |
| lisitsyn | could happen I guess | 13:40 |
| @lambday | Intel(R) HD Graphics IvyBridge M GT2 | 13:40 |
| @lambday | ya but why is that? | 13:41 |
| @lambday | lisitsyn: for the cpu one I am using intel's sdk for opencl... and for the gpu I am using beignet | 13:41 |
| lisitsyn | I don't know, it could be driver or something | 13:42 |
| lisitsyn | I wouldn't expect good performance on such card | 13:42 |
| lisitsyn | nowhere near to these things like tesla | 13:42 |
| @wiking | booon | 13:59 |
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| @wiking | yozon | 15:14 |
| @wiking | HeikoS: so basically we made another step towards nightly packages | 15:14 |
| @wiking | last week | 15:14 |
| @HeikoS | wiking: yoyo | 15:14 |
| @wiking | but dunno what's the status of besser about getting some more stuff running | 15:14 |
| @HeikoS | wiking: whats the step? | 15:14 |
| @wiking | but i'll see it on monday the latest | 15:14 |
| @wiking | HeikoS: well now finally we have only config.h + swig_config.h | 15:15 |
| @wiking | no more -D compiler flags | 15:15 |
| @HeikoS | not sure whether I understand what that means | 15:15 |
| @wiking | which will allow us basically to build a modular interface without building actually the c++ library | 15:15 |
| @wiking | if you have a preexisting shogun installation | 15:15 |
| @wiking | that is required for being able to build | 15:15 |
| @wiking | modular interfaces standalone | 15:16 |
| @wiking | without building the library itself | 15:16 |
| @wiking | well previously shogun defined all sorts of compile flags | 15:16 |
| @HeikoS | I see | 15:16 |
| @HeikoS | thats great then | 15:16 |
| @wiking | -DHAVE_WHATEVER -DLALLAA | 15:16 |
| @wiking | now we dont have this anymore | 15:16 |
| @wiking | we purely rely on config.h | 15:16 |
| @wiking | this has a good sideeffect of ccache finally being really effective | 15:17 |
| @wiking | so now if u use ccache the recompilation of the library will be really fast | 15:17 |
| @wiking | because the problem was of couse | 15:17 |
| @wiking | *course that ccache was not hitting any cache | 15:17 |
| @HeikoS | ah great | 15:17 |
| @HeikoS | thats really good news then | 15:17 |
| @wiking | because of a slight change of the compiler flags | 15:17 |
| @wiking | which might have only effected 2-3 srcs | 15:18 |
| @HeikoS | wiking: macos also seems to work better these days right? | 15:18 |
| @HeikoS | so we can have nighly ubuntu, nightly mac, and nightly cloud? | 15:18 |
| @wiking | but since ccache is sensitive for compiler flags... basically it never hit a cache | 15:18 |
| @wiking | yeah we could | 15:18 |
| @wiking | but we still need to fix this separation | 15:18 |
| @wiking | being able to build a modular interface | 15:18 |
| @wiking | based on a preexisting shogun installation | 15:19 |
| @HeikoS | okok | 15:19 |
| @HeikoS | could we use this in travis to reduce time? | 15:19 |
| @wiking | but yeah another problem now is c# modular interface | 15:19 |
| @wiking | mmmm we could although that's quite tricky | 15:20 |
| @wiking | if we could like distribute and persist somewhere the ccache | 15:20 |
| @wiking | then we actually could save compilation time ;) | 15:20 |
| @wiking | now travis offers something like a docker based build | 15:21 |
| @HeikoS | wiking: well just a thought | 15:22 |
| @HeikoS | I think a better way would be to split shogun into modules | 15:22 |
| @HeikoS | but later | 15:22 |
| @wiking | but that is still shitty atm | 15:22 |
| @HeikoS | whats the problem with c#? | 15:22 |
| @wiking | well mono 3.x or later | 15:22 |
| @wiking | is just not compatible with the current swig setup | 15:22 |
| @wiking | so we need to fix some typedefs | 15:22 |
| @HeikoS | wiking: ah crap | 15:24 |
| @HeikoS | wiking: maybe thats a good point for someone to dive into those typemaps | 15:24 |
| @HeikoS | wiking: and then do the matlab ones on the fly ;) | 15:24 |
| @wiking | hehehe | 15:25 |
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| @wiking | HeikoS: so | 15:40 |
| @wiking | what's the plan of the world domination | 15:40 |
| @wiking | ? | 15:43 |
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| @HeikoS | wiking: what? :D | 16:23 |
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| --- Log closed Sun May 10 00:00:19 2015 | ||
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