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GCC Lands Intel Cilk Plus Multi-Threading Support

Intel

Published on 06 November 2013 01:09 AM EST
Written by Michael Larabel in Intel
2 Comments

Last month I wrote about the road being clear for Intel Cilk Plus landing in GCC and as of a few days ago the run-time library and Cilk spawn/sync support was finally merged.

Going back years there's been a port of Intel's Cilk Plus multi-threading support to GCC but it hasn't been quick to reach master. Only last month was it approved by the GCC steering committee that the Cilk Plus run-time library can be merged.

As of last week, the _Cilk_spawn and _Cilk_sync keywords were committed followed immediately by the libcilkrts run-time library. There were also a few other GNU Compiler Collection commits concerning the Cilk Plus enablement.

Cilk Plus is an extension of C and C++ to offer easy yet powerful multi-core / vector processing programming. There's three Cilk Plus keywords to make parallel programming easier and efficient. More details on Cilk Plus, which can now be exploited by GCC, can be found via Wikipedia.

Up to now there's been only official support for Cilk Plus parallel programming within Intel's C++ Compiler but LLVM's Clang has also been working on a yet-to-be-merged implementation. It's great to see this OpenMP alternative being yet another feature for the GCC 4.9 compiler release that will likely premiere in H1'2014.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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