March 2014 - Boost - lists.boost.org

Boost.BLAS
by Ashrith H Chinivar 19 Mar '14

19 Mar '14

Hey, This is Ashrith and I have a few queries related to the development of Boost.uBLAS library. I am currently undergoing a course on Linear Algebra and Matrices in my 3rd year of college and I would like to apply this in making kernel subroutines for Basic Linear Algebra under Boost.uBLAS. I hope to contribute by adding matrix multiplication, inversion algorithms and various other operations into the Boost. Please do let me know if I am missing something. I feel I may have over-seen some obvious prerequisites. Thank you, Ashrith

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GSoC 2014: Boost Radix Sort
by Shahamat Mehdi 19 Mar '14

19 Mar '14

I am very interested in contributing to the radix sort algorithm in this year GSoC. I am currently studying Algorithms course and i have studied the radix sort algorithm and i really want it to be implemented. I want to ask from mentors weather we will be implementing it only on integers? or will it be a template function. I can think of doing it on integers, strings and doubles. But if there are others on which radix sort will perform better than count sort please let me know so that i could start thinking about that too. Thank you Shahamat Mehdi

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setting option specific for compiler in Jamfile
by Oliver Kowalke 19 Mar '14

19 Mar '14

How can I apply an option in Jamfile which applies only for toolset-version onward? instead of writing: <toolset>gcc-4.7:<cxxflags>-fxyz <toolset>gcc-4.8:<cxxflags>-fxyz <toolset>gcc-4.9:<cxxflags>-fxyz I'd like to have a single line. <toolset>gcc-greater-eqal-4.7:<cxxflags>-fxyz best regards, Oliver

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[git] Super-project workflow
by Brian Ravnsgaard Riis 19 Mar '14

19 Mar '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, According to https://svn.boost.org/trac/boost/wiki/SuperProjectWorkflow the super project should be loosely based on git-flow, which would mean that branch 'master' should currently reflect 1.55. There should be a branch 'latest', which maps to develop of all submodules, and a branch 'develop', which maps to master of all submodules. A quick glance at 'master' shows commits within the last day, updating submodule references. Also, quite a bit of pre-1.56 work has been done. Should this not happen on 'develop'? Or are we using a completely different workflow after all? How do I get 1.55 from the git repo atm? /Brian Riis -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTKEFjAAoJEFES4N8QrEodPysIAJKyI9d10uqHSsO1qqIRWJCA Xktr5Nfu4cZGtp59q7m8ydAZWTHK4r0dzdl0MB20Zb6Sn5fJ0LGrARb8GOse9CS/ IZ5dtIZBQ4w4X++yLdxqKmeM8Scm4CHI/uyQtK3x4jn+AYAHWIXcbLQXw2ESNFJ7 vVazOLdrWKV408C1f6tko5dycseeizlah1Svx0WGvmUkRrGUCxRL44AOhl1Nj0eL DLuMZ99a6YjKYE253pO63F4s32s8SMC542kl9RqLI10SzlEVHc9ed97/Qqab3xmn BYgYT3wIHCMNsKG6qBWH+3m3vqGczVCqi11uYeAazTgqsEmJ4p3XQZIABFvrsr8= =YJha -----END PGP SIGNATURE-----

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[fusion] Feature Request: alias templates
by Joe Gottman 19 Mar '14

19 Mar '14

I recently started using boost::fusion, and one feature that would make it much more user friendly is template aliases like the ones that were added for the standard type traits in C++14. For example, template <typename I> using deref_t = typename result_of::deref<I>::type; Joe Gottman

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[GSoC][Trie][Radix sort]
by matijas9 19 Mar '14

19 Mar '14

Hello, On list of items for Google Summer of Code is "Trie data structure, extending the work done during GSoC 2013". I would like to know what exactly mean "extending the work", i.e. what is to do in implementation of trie from previous GSoC. Secondly, I would like to add to my proposition of project for GSoC radix sort algorithm. I would like to know how generalized can be types of input datas for radix sort. Elements of sequences which are sorted must belong to some finite universe and should be comparable in constant time, so in my opinion radix sort can sort only sequences of natural numbers well. Therefore I think about preparing version of radix sort sorting sequences of numbers and another version sorting strings (which can be interpreted as sequences of numbers). Can someone think of some other, usefull types of objects that can be sorted using radix sort? Best Regards, Mateusz Wasylkiewicz

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[Parallel Algorithms] Queries regarding the Boost.Thread / Parallel algorithms
by Naveen 19 Mar '14

19 Mar '14

Hi, I am interested in the implementation of parallel algorithms. From given documentation in http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2012/n3429.pdf I could understand the basic crux of the project. But the part which I was not able to figure from the documentation are these; 1. The type of network layer or the communication layer to be used. Can we make use of GASNet or ARMCI as the communication layer and build of ideas on it? Or do we have any specific library to work on this? 2. And the implementation of parallel_for and parallel_for_each, are we trying to mimic the available functionality from the parallel programming models like OpenMP? How far are these functions different from them. 3. Should we analyze about compiler optimizations. Because once these external parallel libraries are called; this necessarily means all the compiler optimizations within this parallel region should be excluded or else the complexity of the parallel library would be increased. Please confirm whether, my understanding is correct or am i looking at the project in a completely unrelated way. Regards, *NAVEEN* | Mobile: 832-720-2393 | about.me <http://about.me/naveen.namashivayam> |

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Queries regarding the Boost.Thread / Parallel algorithms
by Naveen 19 Mar '14

19 Mar '14

Hi, I am interested in the implementation of parallel algorithms. From given documentation in http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2012/n3429.pdf I could understand the basic crux of the project. But the part which I was not able to figure from the documentation are these; 1. The type of network layer or the communication layer to be used. Can we make use of GASNet or ARMCI as the communication layer and build of ideas on it? Or do we have any specific library to work on this? 2. And the implementation of parallel_for and parallel_for_each, are we trying to mimic the available functionality from the parallel programming models like OpenMP? How far are these functions different from them. 3. Should we analyze about compiler optimizations. Because once these external parallel libraries are called; this necessarily means all the compiler optimizations within this parallel region should be excluded or else the complexity of the parallel library would be increased. Please confirm whether, my understanding is correct or am i looking at the project in a completely unrelated way. Regards, *NAVEEN* | Mobile: 832-720-2393 | about.me <http://about.me/naveen.namashivayam> |

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Re: [boost] Welcome as organization member - HELP !!!!!
by Vicente J. Botet Escriba 19 Mar '14

19 Mar '14

Hi, I have reached to see the projects now, Thanks, Vicente Le 18/03/14 22:27, Niall Douglas a écrit : > Ability to assign mentors opened today, I've assigned all the mentors > to projects in so far as I know which. > > Niall > > > On 18 Mar 2014 at 20:56, Boris Schäling wrote: > >> >>> -----Original Message----- >>> From: Niall Douglas [mailto:s_sourceforge@nedprod.com] >>> Sent: Dienstag, 18. März 2014 02:04 >>> To: Vicente J. Botet Escriba >>> Cc: Boris Schäling >>> Subject: Re: Welcome as organization member - HELP !!!!! >> Hi Niall, >> >>> It's possible. I am unable to accept proposals, so if you can't see >>> proposals until I accept them, that would explain it. >>> >>> I assume that only after submission closes will I be allowed to >>> accept proposals and then you can see them? Boris: you were admin >>> last year, do you know the answer? >> Vicente is a registered mentor but can't see any proposals? Unfortunately I >> don't remember anymore whether that was the case for us last year, too, >> while we were still in the student application period. Can you assign >> Vicente as a possible mentor to a proposal (the one he is interested in)? >> >> Boris >> >>> [...] > > --- > Boost C++ Libraries Google Summer of Code 2014 admin > https://svn.boost.org/trac/boost/wiki/SoC2014 > >

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[GSoC 2014] Boost.odeint application
by Razvan Florea 19 Mar '14

19 Mar '14

Hello, I have added on google melange the first version of my application for Boost.odeint library. You can find it here: [1]. Please take a look on it and give me feedback in order to change the weakest parts. [1]: https://www.google-melange.com/gsoc/proposal/review/student/google/gsoc2014… Best regards, Razvan Florea

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