Thrust 1.9.0-5 (CUDA Toolkit 9.0)

Thrust 1.9.0 replaces the original CUDA backend (bulk) with a new one written using CUB, a high performance CUDA collectives library. This brings a substantial performance improvement to the CUDA backend across the board.

Breaking Changes

• Any code depending on CUDA backend implementation details will likely be broken.

New Features

• New CUDA backend based on CUB which delivers substantially higher performance.
• thrust::transform_output_iterator, a fancy iterator that applies a function to the output before storing the result.

New Examples

• transform_output_iterator demonstrates use of the new fancy iterator thrust::transform_output_iterator.

Other Enhancements

• When C++11 is enabled, functors do not have to inherit from thrust::(unary|binary)_function anymore to be used with thrust::transform_iterator.
• Added C++11 only move constructors and move assignment operators for thrust::detail::vector_base-based classes, e.g. thrust::host_vector, thrust::device_vector, and friends.

Bug Fixes

• sin(thrust::complex<double>) no longer has precision loss to float.

Acknowledgments

• Thanks to Manuel Schiller for contributing a C++11 based enhancement regarding the deduction of functor return types, improving the performance of thrust::unique and implementing thrust::transform_output_iterator.
• Thanks to Thibault Notargiacomo for the implementation of move semantics for the thrust::vector_base-based classes.
• Thanks to Duane Merrill for developing CUB and helping to integrate it into Thrust's backend.