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CUB 1.2.0

brycelelbach released this 19 May 07:32

Summary

CUB 1.2.0 adds cub::DeviceReduce::ReduceByKey and cub::DeviceReduce::RunLengthEncode and support for CUDA 6.0.

New Features

cub::DeviceReduce::ReduceByKey.
cub::DeviceReduce::RunLengthEncode.

Other Enhancements

Improved cub::DeviceScan, cub::DeviceSelect, cub::DevicePartition performance.
Documentation and testing:
- Added performance-portability plots for many device-wide primitives.
- Explain that iterator (in)compatibilities with CUDA 5.0 (and older) and Thrust 1.6 (and older).
Revised the operation of temporary tile status bookkeeping for cub::DeviceScan (and similar) to be safe for current code run on future platforms (now uses proper fences).

Bug Fixes

Fix cub::DeviceScan bug where Windows alignment disagreements between host and device regarding user-defined data types would corrupt tile status.
Fix cub::BlockScan bug where certain exclusive scans on custom data types for the BLOCK_SCAN_WARP_SCANS variant would return incorrect results for the first thread in the block.
Added workaround to make cub::TexRefInputIteratorT work with CUDA 6.0.

Assets 2