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- [/===========================================================================
- Copyright (c) 2013-2015 Kyle Lutz <kyle.r.lutz@gmail.com>
- Distributed under the Boost Software License, Version 1.0
- See accompanying file LICENSE_1_0.txt or copy at
- http://www.boost.org/LICENSE_1_0.txt
- =============================================================================/]
- [section:tutorial Tutorial]
- [section Hello World]
- The hello world example gives a simple application that prints the name of
- the default compute device on the system.
- The [classref boost::compute::system] class provides access to the OpenCL
- platforms and devices present on the host system.
- Compute devices are represented with the
- [classref boost::compute::device device] class.
- [import ../example/hello_world.cpp]
- [hello_world_example]
- [endsect] [/ hello world]
- [section Transferring Data]
- Before any computation occurs, data must be transferred from the host to the
- compute device. The generic [funcref boost::compute::copy copy()] function
- provides a simple interface for transfering data and the generic
- [classref boost::compute::vector vector<T>] class provides a container for
- storing data on a compute device.
- The following example shows how to transfer data from an array on the host to
- a [classref boost::compute::vector vector<T>] on the device and then back to
- a separate `std::vector<T>` on the host. At the end of the example both
- `host_array` and `host_vector` contain the same values which were copied
- through the memory on the compute device.
- [import ../example/copy_data.cpp]
- [copy_data_example]
- [endsect] [/ transferring data]
- [section Transforming Data]
- The following example shows how to calculate the square-root of a vector of
- `float`s on a compute device using the [funcref boost::compute::transform
- transform()] function.
- [import ../example/transform_sqrt.cpp]
- [transform_sqrt_example]
- [endsect] [/ transforming data]
- [endsect] [/ tutorial ]
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