英特尔® Cilk™ Plus

gcc 5.3 and clik dev tools: cilkscreen and cilkview

I see that the dev tools cilkview and cilkscreen have been updated in late 2015 (build 4421) -- the web pages state that they support the gcc cilk branch -- does this imply that they don't support the latest gcc compilers -- aka gcc 5.3.  The gcc 5.3 compiles and runs the cilk code like the traditional fib.cpp test code.  But when run under the latest cilkscreen and cilkview, these programs complain about lack of cilk sir code, see below:

-bash-4.2$ cilkview ./fib

 

Cilkview: Generating scalability data

Cilkview Scalability Analyzer V2.0.0, Build 4421

Using Cilk Plus in cross-platform R packages (GCC 4.9.3)

I need to be able to compile my application in Linux, Windows and Mac using compiler tools supported by R. For windows this means that I must use Mingw-W64 vs with GCC 4.9.3 (https://github.com/rwinlib/r-base#readme). 

1. Linux: I understand that GCC supports Cilk Plus since GCC 4.9. Is Cilk Plus already a part of GCC 4.9.3 or does it need to be installed separately?

2. On Windows, is Cilk Plus available for the Mingw-W64 toolchain. If not, can it be added and used as another library?

reducers under nested iterations

Hello, I am doing some SpMV-related work and exploring the use of CilkPlus. I had a question related to reducers that I could not find out myself reading the documentation.  In short: is there a simple or performant way of declaring a logical set of reducers or a reducer 'holder' such that an inner cilk_for uses its own reducer hyperobject, without the outer cilk_for having to share the same hyperobject over all of its strands.

Consider the following C99-CilkPlus loop code, which calculates a sparse binary matrix-vector multiplications for eight vectors simultaneously:

Приводим данные и код в порядок: данные и разметка, часть 2

In this pair of articles on performance and memory covers basic concepts to provide guidance to developers seeking to improve software performance. This paper expands on concepts discussed in Part 1, to consider parallelism, both vectorization (single instruction multiple data SIMD) as well as shared memory parallelism (threading), and distributed memory computing.
  • 学生
  • 服务器
  • Windows*
  • 现代代码
  • C/C++
  • Fortran
  • 中级
  • 英特尔® Advisor
  • 英特尔® Cilk™ Plus
  • Intel® Threading Building Blocks
  • 英特尔® 高级矢量扩展指令集
  • OpenMP*
  • Intel® Many Integrated Core Architecture
  • 优化
  • 并行计算
  • 线程
  • 矢量化
  • Linking with cilk on OSX

    On MAC OSX I link with

       -lcilkrts

     At runtime it seems to expect

        libcilkrts.5.dylib

    but I had expected it would require

       libcilkrts.dylib

    However, there is versioned and a nonversioned variants:

    compilers_and_libraries_2016.1.111/mac//bin/intel64/libcilkrts.5.dylib

    compilers_and_libraries_2016.1.111/mac//compiler/lib/libcilkrts.5.dylib

    compilers_and_libraries_2016.1.111/mac//compiler/lib/libcilkrts.dylib

    Have I misunderstood something?

     

     

    订阅 英特尔® Cilk™ Plus