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Submissions open: High Performance Parallelism Gems

We have all had our little discoveries and triumphs in identifying new and innovative approaches that increased the performance of our applications. Occasionally we find something more, something that could also help others, an innovative gem. You now have an opportunity to broadcast your successes more widely to the benefit of our community. You are invited to submit a proposal to a contribution-based book, working title, “High Performance Parallelism Gems – Successful Approaches for Multicore and Many-core Programming” that will focus on practical techniques for Intel® Xeon® processor and Intel® Xeon Phi™ coprocessor parallel computing. Submissions are due by May 29, 2014.

Internal compiler error 010101_239

Hi guys,

I condensed our project down to a piece of code that lets you reproduce the following issue.
When I compile this in Release configuration (Debug works), I get this compiler error:

1>------ Build started: Project: ng-gtest, Configuration: Release x64 ------
1> CilkTest.cpp
1>" : error : 010101_239
1>
1> compilation aborted for General\CilkTest.cpp (code 4)
========== Build: 0 succeeded, 1 failed, 3 up-to-date, 0 skipped ==========

Efficient prefix scan library in Cilk Plus and accessible from C?

Is there any efficient prefix scan library for Cilk Plus accessible from C?

I was not able to find any and my implementation can hardly compete with the sequential version :-)

An interface similar to the reducers will work nicely.

Thank you.

Cilk worker scheduling

Hello,

I would like to understand better how Cilk scheduling works. 
I am not sure how to phrase this question so I give it my best.

I have downloaded the latest Intel Cilk runtime release (cilkplus-rtl-003365 -  released 3-May-2013).
I use the classical Fibonacci example in Cilk.

How to Start VTune Amplifier from Ubuntu Launcher

Under Linux many commands are executed from the command line, which is OK. But if the program you are starting has a mouse driven GUI in my view the command line doesn't really make sense.

NOTE: In all the following <install dir> means where you installed Intel® System Studio. On my system this is /opt/intel/system_studio_2014.0.025. Use the location you chose during installation.

VTune Amplifier is for me such a case. To start it from the command line you need to

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  • Parallel Search With Cilk Plus

    Hi everyone , I have a program that generating random number if it does not exist in ( allocated custom size) array  then add array. But if custom size is very big   ( 1 million )  after a period search is very slowing down. I did learn  cilk_for and reducers.I want to paralleize but I could not decide what reducer is suitable for array. Is there someone who can help me ? 

    (Sorry for my english if you do not understand my problem you can write my e-mail   " 03011241@st.meliksah.edu.tr " )  

     

    Question on the Status of Cilk Plus Support in GCC Mainline

    Hi,

    I read from the GCC 4.9.0 release notes that http://gcc.gnu.org/gcc-4.9/changes.html

    Support for Cilk Plus has been added and can be enabled with the -fcilkplus option. Cilk Plus is an extension to the C and C++ languages to support data and task parallelism. The present implementation follows ABI version 1.2; all features but _Cilk_for have been implemented.

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