mirror of
https://github.com/boostorg/compute.git
synced 2026-01-27 18:52:15 +00:00
110 lines
5.9 KiB
HTML
110 lines
5.9 KiB
HTML
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
|
|
<title>Background</title>
|
|
<link rel="stylesheet" href="../boostbook.css" type="text/css">
|
|
<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
|
|
<link rel="home" href="../index.html" title="Chapter 1. Boost.Compute">
|
|
<link rel="up" href="../index.html" title="Chapter 1. Boost.Compute">
|
|
<link rel="prev" href="design.html" title="Design">
|
|
<link rel="next" href="tutorial.html" title="Tutorial">
|
|
</head>
|
|
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
|
|
<div class="spirit-nav">
|
|
<a accesskey="p" href="design.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="tutorial.html"><img src="../images/next.png" alt="Next"></a>
|
|
</div>
|
|
<div class="section">
|
|
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
|
|
<a name="boost_compute.background"></a><a class="link" href="background.html" title="Background">Background</a>
|
|
</h2></div></div></div>
|
|
<div class="toc"><dl>
|
|
<dt><span class="section"><a href="background.html#boost_compute.background.platform_model">Platform Model</a></span></dt>
|
|
<dt><span class="section"><a href="background.html#boost_compute.background.memory_model">Memory Model</a></span></dt>
|
|
<dt><span class="section"><a href="background.html#boost_compute.background.execution_model">Execution Model</a></span></dt>
|
|
</dl></div>
|
|
<div class="section">
|
|
<div class="titlepage"><div><div><h3 class="title">
|
|
<a name="boost_compute.background.platform_model"></a><a class="link" href="background.html#boost_compute.background.platform_model" title="Platform Model">Platform Model</a>
|
|
</h3></div></div></div>
|
|
<h3>
|
|
<a name="boost_compute.background.platform_model.h0"></a>
|
|
<span><a name="boost_compute.background.platform_model.platforms_and_devices"></a></span><a class="link" href="background.html#boost_compute.background.platform_model.platforms_and_devices">Platforms
|
|
and Devices</a>
|
|
</h3>
|
|
<p>
|
|
Platforms provide an interface to the OpenCL implementation from a particular
|
|
vendor (such as NVIDIA or Intel). Platforms contain one or more compute devices
|
|
which can execute OpenCL kernel code.
|
|
</p>
|
|
<p>
|
|
Platforms are represented in Boost.Compute with the <code class="computeroutput"><a class="link" href="../boost/compute/platform.html" title="Class platform">platform</a></code>
|
|
class.
|
|
</p>
|
|
<p>
|
|
Compute devices include GPUs, multi-core CPUs, and various accelerator cards
|
|
(such as the Intel Xeon Phi).
|
|
</p>
|
|
<p>
|
|
Devices are represented in Boost.Compute with the <code class="computeroutput"><a class="link" href="../boost/compute/device.html" title="Class device">device</a></code>
|
|
class.
|
|
</p>
|
|
<h3>
|
|
<a name="boost_compute.background.platform_model.h1"></a>
|
|
<span><a name="boost_compute.background.platform_model.contexts_and_memory_objects"></a></span><a class="link" href="background.html#boost_compute.background.platform_model.contexts_and_memory_objects">Contexts
|
|
and Memory Objects</a>
|
|
</h3>
|
|
<p>
|
|
Contexts manage run-time objects such as memory buffers, programs, kernels
|
|
and command queues.
|
|
</p>
|
|
<p>
|
|
Memory objects provide storage space for data on a compute device. The simplest
|
|
memory object is the buffer and provides a linear, contiguous array of data
|
|
(much like a C-style array).
|
|
</p>
|
|
<h3>
|
|
<a name="boost_compute.background.platform_model.h2"></a>
|
|
<span><a name="boost_compute.background.platform_model.programs_and_kernels"></a></span><a class="link" href="background.html#boost_compute.background.platform_model.programs_and_kernels">Programs
|
|
and Kernels</a>
|
|
</h3>
|
|
</div>
|
|
<div class="section">
|
|
<div class="titlepage"><div><div><h3 class="title">
|
|
<a name="boost_compute.background.memory_model"></a><a class="link" href="background.html#boost_compute.background.memory_model" title="Memory Model">Memory Model</a>
|
|
</h3></div></div></div>
|
|
<p>
|
|
Memory Spaces global, local, private, constant image memory objects
|
|
</p>
|
|
</div>
|
|
<div class="section">
|
|
<div class="titlepage"><div><div><h3 class="title">
|
|
<a name="boost_compute.background.execution_model"></a><a class="link" href="background.html#boost_compute.background.execution_model" title="Execution Model">Execution Model</a>
|
|
</h3></div></div></div>
|
|
<h2>
|
|
<a name="boost_compute.background.execution_model.h0"></a>
|
|
<span><a name="boost_compute.background.execution_model.command_queues"></a></span><a class="link" href="background.html#boost_compute.background.execution_model.command_queues">Command
|
|
Queues</a>
|
|
</h2>
|
|
<p>
|
|
NDRange kernel global work size vs. local work size work-group vs. warp vs
|
|
CTA memory barriers and work-group synchronization global (inter-kernel)
|
|
synchronization can only be performed via sequential kernel launches by the
|
|
host
|
|
</p>
|
|
</div>
|
|
</div>
|
|
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
|
|
<td align="left"></td>
|
|
<td align="right"><div class="copyright-footer">Copyright © 2013, 2014 Kyle Lutz<p>
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
|
|
</p>
|
|
</div></td>
|
|
</tr></table>
|
|
<hr>
|
|
<div class="spirit-nav">
|
|
<a accesskey="p" href="design.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="tutorial.html"><img src="../images/next.png" alt="Next"></a>
|
|
</div>
|
|
</body>
|
|
</html>
|