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Intel® Parallel Studio XE 2015 Update 3 Composer Edition for C++ Linux*

Intel® Parallel Studio XE 2015 Update 3 Composer Edition for C++ Linux includes the latest Intel C/C++ compilers and performance libraries for IA-32, Intel® 64, and Intel® Many Integrated Core (Intel® MIC) architecture systems.

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  • Intel® Parallel Studio XE 2015 Update 3 Composer Edition for C++ OS X*

    Intel® Parallel Studio XE 2015 Update 3 Composer Edition for C++ OS X* includes the latest Intel C/C++ compilers and performance libraries for IA-32 and Intel® 64 architecture systems. This new product release now includes: Intel® C++ Compiler 15.0.3, GNU* Project Debugger (GDB*) 7.8, Intel® Math Kernel Library (Intel® MKL) Version 11.2 Update 3, Intel® Integrated Performance Primitives (Intel® IPP) Version 8.2 Update 2, Intel® Threading Building Blocks (Intel® TBB) Version 4.3 Update 5

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  • Using Cilk reducer inside Cilker shared function

    Hi I am trying to offload some parallel work to MIC using _Cilk_Shared and _Cilk_offload. 

    I declare a Cilk shared function:

    _Cilk_shared void somefun(int count)

     

    In main I call this function using 

    _Cilk_offload somefun(12) ;

    inside this function everything is expected to be offloaded to MIC;

    I want to declare a Cilk reducer inside somefun, so I can then use cilk_for and append to a cilk reducer list, 

    but I get error:

    Unable to Compile GCC

    I was following the instructions from https://www.cilkplus.org/build-gcc-cilkplus, and I consistently got an error saying that "tm.h": no file or directory was found. I'm not sure what tm.h is, or what package it is included with.

    I installed the following packages: GNAT (probably doesn't help), GMP, MPFR, MPC, ISL, Flex, Bison.

    My configuration options were `./configure --prefix=/usr/lib/gcc/cilkplus --enable-languages="c,c++" --disable-multilib`

    On Ubuntu 14.10. 

    Intel® Parallel Studio XE 2016 Beta

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  • Is cilk slower on Linux than on Windows?

    Currently, I am getting decent results with Intel 15 Cilk on Windows. However, the results is not nearly as good on Linux. My feeling is the overhead of a spawn is bigger on Linux. Any suggestions/comments?

    I had expected the opposite results i.e. better results on Linux. 

    I am using fairly new hardware and have tried to disable hyperthreading. Disabling hypertreading improves the result a bit but not much.

     

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