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Host Backends

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jaredhoberock edited this page Mar 7, 2012 · 1 revision

Like the device system, we can also control the host system which applies to untagged, or "raw" types like thrust::host_vector::iterator, std::vector::iterators, and raw pointers. The host system backend is selected via the THRUST_HOST_BACKEND macro:

$ nvcc -Xcompiler -fopenmp -DTHRUST_HOST_BACKEND=THRUST_HOST_BACKEND_OMP my_program.cu -lgomp

By default, THRUST_HOST_BACKEND is set to THRUST_HOST_BACKEND_CPP. It can be set to any one of

  • THRUST_HOST_BACKEND_CPP
  • THRUST_HOST_BACKEND_OMP
  • THRUST_HOST_BACKEND_TBB

Currently, the implementation of all host systems' memories are interoperable.

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