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Does Cilk work for GPUs?

• wmf 15y ago
  Not really; IIRC it assumes MIMD hardware. I think of Cilk as useful for programs that can't be written in OpenCL.
  • scott_s 15y ago
    GPUs are data parallel machines. Cilk has support for both task and data parallelism. The task parallel constructs in Cilk wouldn't make much sense on GPUs.
    • baltcode 15y ago
      So data parallel constructs like parallel for loops can work with GPUs? I mean not just in theory but can the current implementations program GPUs?
      • scott_s 15y ago
        Current implementations of Cilk, no, not as far as I know. There's also the fact that you need to transfer the data to the GPU. The transfer costs may kill any benefits from parallelism.