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:
Hi I am new to cilk plus and MIC. I had this topic in MIC forum as well
I have a problem where I need to offload/parallel process some data, append to a list B , and return to the host. The host will then combine this list to another host std::list<T> A.
I have following approach:
Hello, and thank you for your time.
I've just installed a fresh version of GCC Cilk Plus, and my first simple program is presenting an anomalous warning.
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.
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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.
This is not really a cilk question but I will try anyway because I think you INTEL must have a lot experience. I have read the section https://software.intel.com/en-us/node/522641 but it is a bit vague.
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