Thrust

HIP back-end for Thrust (alpha release).

Introduction

Thrust is a parallel algorithm library. This library has been ported to HIP/ROCm platform, which uses the rocPRIM library. The HIP ported library works on HIP/ROCm platforms. Currently there is no CUDA backend in place.

Requirements

Software

• Git
• CMake (3.5.1 or later)
• AMD ROCm platform (1.8.0 or later)
  • Including HCC compiler, which must be set as C++ compiler on ROCm platform.
• rocPRIM library
  • It will be automatically downloaded and built by CMake script.

Optional:

• GTest
  • Required only for tests. Building tests is enabled by default.
  • It will be automatically downloaded and built by CMake script.

Hardware

Visit the following link for ROCm hardware requirements: https://github.com/RadeonOpenCompute/ROCm/blob/master/README.md#supported-cpus

Build And Install

git clone https://github.com/ROCmSoftwarePlatform/rocThrust

# Go to rocThrust directory, create and go to the build directory.
cd rocThrust; mkdir build; cd build

# Configure rocThrust, setup options for your system.
# Build options:
#   BUILD_TEST - ON by default,
#
# ! IMPORTANT !
# On ROCm platform set C++ compiler to HCC. You can do it by adding 'CXX=<path-to-hcc>'
# before 'cmake' or setting cmake option 'CMAKE_CXX_COMPILER' with the path to the HCC compiler.
#
[CXX=hcc] cmake ../. # or cmake-gui ../.

# Build
make -j4

# Optionally, run tests if they're enabled.
ctest --output-on-failure

# Package
make package

# Install
[sudo] make install

Using rocThrust In A Project

Recommended way of including rocThrust into a CMake project is by using its package configuration files.

# On ROCm rocThrust requires rocPRIM
find_package(rocprim REQUIRED CONFIG PATHS "/opt/rocm/rocprim")

# "/opt/rocm" - default install prefix
find_package(rocthrust REQUIRED CONFIG PATHS "/opt/rocm/rocthrust")

...
includes rocThrust headers and roc::rocprim_hip target
target_link_libraries(<your_target> rocthrust)

Running Unit Tests

# Go to rocThrust build directory
cd rocThrust; cd build

# To run all tests
ctest

# To run unit tests for rocThrust
./test/<unit-test-name>

Documentation

Documentation is available here.

Support

Bugs and feature requests can be reported through the issue tracker.

Contributions and License

Contributions of any kind are most welcome! More details are found at CONTRIBUTING and LICENSE.