Added the first version of readme
ADD
README.md
+# Thrust
+
+HIP back-end for Thrust (alpha release).
+
+## Introduction
+
+Thrust is a parallel algorithm library. This library has been ported to [HIP](https://github.com/ROCm-Developer-Tools/HIP)/[ROCm](https://rocm.github.io/) platform, which is uses the [rocPRIM](https://github.com/ROCmSoftwarePlatform/rocPRIM) library. The HIP ported library works on both HIP/CUDA and HIP/ROCm platforms.
+
+## Requirements
+
+### Software
+
+* Git
+* CMake (3.5.1 or later)
+* AMD [ROCm](https://rocm.github.io/install.html) platform (1.8.0 or later)
+ * Including [HCC](https://github.com/RadeonOpenCompute/hcc) compiler, which must be
+ set as C++ compiler on ROCm platform.
+* [rocPRIM](https://github.com/ROCmSoftwarePlatform/rocPRIM) library
+ * It will be automatically downloaded and built by CMake script.
+
+Optional:
+
+* [GTest](https://github.com/google/googletest)
+ * 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' to 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.
+
+```cmake
+# On ROCm rocThrust requires rocPRIM
+find_package(rocprim REQUIRED CONFIG PATHS "/opt/rocm/rocprim")
+
+# "/opt/rocm" - default install prefix
+find_package(hipcub 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 hipCUB build directory
+cd rocThrust; cd build
+
+# To run all tests
+ctest
+
+# To run unit tests for rocThrust
+./test/<unit-test-name>
+```
+
+## Documentation
+
+```
+# go to rocThrust doc directory
+cd rocThrust; cd doc
+
+# run doxygen
+doxygen Doxyfile
+
+# open html/index.html
+
+```
+
+## Support
+
+Bugs and feature requests can be reported through [the issue tracker](https://github.com/ROCmSoftwarePlatform/rocThrust/issues).
+
+## Contributions and License
+
+Contributions of any kind are most welcome! More details are found at [CONTRIBUTING](./CONTRIBUTING.md)
+and [LICENSE](./LICENSE.txt).

Added the first version of readme