My ComposerXE for MacOs doesn't contain cilk's header files (such as cilk.h), actually the entire cilk include folder is absent.
Any work around?
Intel Cilk Plus keywords and reducers are not supported in the current version of Composer XE 2011 for Mac OS*. We do plan on having support for it in a future version, but I can't comment on timelines in a public forum per company policy.
Cilk Plus array notations and elemental functions are supported on the Mac OS* platform.