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CppCon 2014 Introduction to C++ AMP (GPGPU Computing)--Marc Gregoire

By Adrien Hamelin | Apr 8, 2015 08:00 AM | Tags: performance

While we wait for CppCon 2015 in September, we’re featuring videos of some of the 100+ talks from CppCon 2014. Here is today’s feature:

Introduction to C++ AMP (GPGPU Computing)

by Marc Gregoire

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Meet C++ AMP (Accelerated Massive Parallelism), an abstraction layer on top of accelerators such as GPUs. In its current version it allows you to run code on any DX11 GPU, independent of the vendor, and it will even distribute workload across GPUs of different vendors simultaneously. C++ AMP was originally designed by Microsoft but is now an open standard. C++ AMP can deliver orders of magnitude performance increase with certain algorithms by utilizing the GPU to perform mathematical calculations. This talk will give a high level overview of what C++ AMP is and what it can do for you. It is time to start taking advantage of the computing power of GPUs!

C++ User Group Meetings in April

By Meeting C++ | Apr 8, 2015 06:14 AM | Tags: community basics

The monthly overview on upcoming user group meetings at Meeting C++:

C++ User Group Meetings in April 2015

by Jens Weller

From the article:

The List:

    9.4 C++ UG Dublin - C/C++ two great talks\, quiz with prizes\, pizza\, ...
    9.4 C++ UG Amsterdam - New data structures in C++11 and Boost
    9.4 C++ UG Dresden - Go all binary!
    11.4 C++ UG Pune, India - More C++ Concurrency
    13.4 C++ UG Denver - Denver Tech Center C++ Developers
    14.4 C++ UG Luzern - C++ Pub Quiz
    15.4 C++ UG Düsseldorf - Encryption & C++
    15.4 C++ UG Hamburg - Operators
    15.4 C++ UG Northwest/Seattle - Pushing the boundaries of C++ Codegeneration
    16.4 C++ UG Rhein-Neckar - Modern C++ Allocators (C++03 to C++17)
    16.4 C++ UG Ruhrgebiet - April fools!
    20.4 C++ UG Austin - North Austin Monthly C/C++ Pub Social
    21.4 C++ UG Berlin - Rationales behind C++ atomics
    22.4 C++ UG San Francisco/ Bay area - Workshop and Discussion Group
    23.4 C++ UG Munich - TBA
    23.4 C++ UG New York - Introduction to C++ Casting
    28.4 C++ UG Chicago - Modern Template Metaprogramming
    29.4 C++ UG London - monthly meetup
    29.4 C++ UG Bremen - C++11/14/1x und Biicode

Overload 126 is now available

By Felix Petriconi | Apr 8, 2015 12:50 AM | Tags: c++11

ACCU's Overload journal of April 2015 is out. It contains C++ related articles.

Overload 126

From the journal:

Alternatives to Singletons and Global Variables: Global variables and Singletons are usually considered bad. Bob Schmidt summarises some alternatives. by Bob Schmidt

Resource Management with Explicit Template Specializations: RAII is a useful idiom. Pavel Frolov presents a powerful extension using explicit template specialization. by Pavel Frolov

Variadic and Variable Templates: C++11 and 14 offer new features for Variadic and Variable templates. Peter Sommerlad showcases the compile-time possibilities they offer. by Peter Sommerlad

iterator_pair – A Simple and Useful Iterator Adapter: Can you form a new contain from two others? Vladimir Grigoriev reminds us how to write an iterator. by Vladimir Grigoriev

Benchmarking in C++

By Niks | Apr 7, 2015 12:03 PM | Tags: None

A writeup of one approach to implement helpers for...

... Benchmarking in C++

by Nick Athanasiou

From the article:

We’ll be creating a framework that attempts to provide a generic, cross platform (standard compliant), non dependent to third party libraries solution to the benchmarking problem and explore the facilities C++ has to offer on the topic. 

The end product will have the following use pattern :

benchmark<time_type, clock_type> bm;

bm. run(
    "Experiment Name"
    , sampleSize
    , { /* code to time */ }
    , "factor name"
    , factors. begin(), factors. end() );

bm. serialize(
    "benchmark name" , "output file name" , mode);

 

CppCon 2014 Rebuilding Boost Date-Time for C++11--Jeff Garland

By Adrien Hamelin | Apr 6, 2015 06:07 AM | Tags: c++11 boost

While we wait for CppCon 2015 in September, we’re featuring videos of some of the 100+ talks from CppCon 2014. Here is today’s feature:

Rebuilding Boost Date-Time for C++11

by Jeff Garland

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Boost date_time is a widely used C++ library originally released in 2001 -- including being the basis for elements of the chrono library in c++11. While the library interface has stayed stable for more than a decade, the world around it has changed with the standard library and language changing. It is time for the library tobe rewritten to account for c++11.

The lecture describes in detail the design decisions and changes to the library for C++11. More generally it describes elements of design for a small valuetype library. Many of these considerations involve new features of C++11 and how they should be used. This includes noexcept, move construction/assignment (R-values), constexpr, enum classes, and user defined literals.

CppCast Episode 6: Fit and Tick with Paul Fultz II

By robwirving | Apr 3, 2015 11:16 AM | Tags: None

Episode 6 of CppCast, the only podcast by C++ developers for C++ developers. In this episode Paul Fultz II joins Rob Irving to talk about his upcoming C++Now talk which will focus on the two C++ libraries hes created Fit and Tick.

CppCast Episode 6: Fit and Tick with Paul Fultz II

by Rob Irving

About the interviewee:

Paul Fultz II has developed in C++ professionally and personally in a variety of fields including DSP, web development, and desktop applications. He has developed in other languages as well such as Java, C#, Python, and Javascript but focuses most of his attention on C++ which combines correctness, expressiveness, and performance together.

CppCon 2014 Adventures In Updating A Legacy Codebase--Billy Baker

By Adrien Hamelin | Apr 3, 2015 08:00 AM | Tags: efficiency c++11

While we wait for CppCon 2015 in September, we’re featuring videos of some of the 100+ talks from CppCon 2014. Here is today’s feature:

Adventures In Updating A Legacy Codebase

by Billy Baker

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Still maintaining a legacy application? Do you have strdup()'s crying to be replaced with std::string? Do pre-standard headers such as iostream.h litter your code? Do boost libraries no longer compile with your favorite C++98 compiler? From GUIs to kernel drivers, this talk will look at some of the adventures taken while updating a codebase with more than 20 years of history to C++11.