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.
Hello, I've downloaded the latest (I think) version fo cilkview from the cilkplus website. For some reason it is not working (even if I try to run it from the same folder, it doesn't find the program...) I'm thinking it has to do with some 32 vs 64-bit library. I exported the lib64 to no avail. Is there any kind of support for cilkview? If not, will you guys just release the source, so we can patch it? This would be great. Same with cilkprof.
Thanks for your time.
Intel Vtune shows that _cilkrts_hyperobject_dealloc is a very expensive operation. Is it because I spawning too much?
I have fairly deep recursion so the stack grows quite large. Maybe that is the issue.
I am newcomer to cilk but like it.
Now I have been looking for build and linking instructions e.g which libs should I link with.
Now the section
Build, Run and Debug an Intel(R) Cilk(TM) Plus Program
but it has NO info about building.
I have a simple algorithm to print the very first unique ASCII character from a stream. In the worst case the algorithm scans through the stream twice, doing some comparisons and increments. So, roughly, my algorithm is O(n).
The algorithm0 do two main things:
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