本文整理汇总了C++中context::get_device方法的典型用法代码示例。如果您正苦于以下问题：C++ context::get_device方法的具体用法？C++ context::get_device怎么用？C++ context::get_device使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类context的用法示例。
在下文中一共展示了context::get_device方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: build_with_source
/**
* In case BOOST_COMPUTE_USE_OFFLINE_CACHE macro is defined,
* the compiled binary is stored for reuse in the offline cache located in
* $HOME/.boost_compute on UNIX-like systems and in %APPDATA%/boost_compute
* on Windows.
*/
static program build_with_source(
const std::string &source,
const context &context,
const std::string &options = std::string()
)
{
#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
// Get hash string for the kernel.
std::string hash;
{
device d(context.get_device());
platform p(d.get_info<cl_platform_id>(CL_DEVICE_PLATFORM));
std::ostringstream src;
src << "// " << p.name() << " v" << p.version() << "\n"
<< "// " << context.get_device().name() << "\n"
<< "// " << options << "\n\n"
<< source;
hash = detail::sha1(src.str());
}
// Try to get cached program binaries:
try {
boost::optional<program> prog = load_program_binary(hash, context);
if (prog) {
prog->build(options);
return *prog;
}
} catch (...) {
// Something bad happened. Fallback to normal compilation.
}
// Cache is apparently not available. Just compile the sources.
#endif
const char *source_string = source.c_str();
cl_int error = 0;
cl_program program_ = clCreateProgramWithSource(context,
uint_(1),
&source_string,
0,
&error);
if(!program_){
BOOST_THROW_EXCEPTION(runtime_exception(error));
}
program prog(program_, false);
prog.build(options);
#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
// Save program binaries for future reuse.
save_program_binary(hash, prog);
#endif
return prog;
}示例2: build_with_source
/**
* In case BOOST_COMPUTE_USE_OFFLINE_CACHE macro is defined,
* the compiled binary is stored for reuse in the offline cache located in
* $HOME/.boost_compute on UNIX-like systems and in %APPDATA%/boost_compute
* on Windows.
*/
static program build_with_source(
const std::string &source,
const context &context,
const std::string &options = std::string()
)
{
#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
// Get hash string for the kernel.
device d = context.get_device();
platform p = d.platform();
detail::sha1 hash;
hash.process( p.name() )
.process( p.version() )
.process( d.name() )
.process( options )
.process( source )
;
std::string hash_string = hash;
// Try to get cached program binaries:
try {
boost::optional<program> prog = load_program_binary(hash_string, context);
if (prog) {
prog->build(options);
return *prog;
}
} catch (...) {
// Something bad happened. Fallback to normal compilation.
}
// Cache is apparently not available. Just compile the sources.
#endif
const char *source_string = source.c_str();
cl_int error = 0;
cl_program program_ = clCreateProgramWithSource(context,
uint_(1),
&source_string,
0,
&error);
if(!program_){
BOOST_THROW_EXCEPTION(opencl_error(error));
}
program prog(program_, false);
prog.build(options);
#ifdef BOOST_COMPUTE_USE_OFFLINE_CACHE
// Save program binaries for future reuse.
save_program_binary(hash_string, prog);
#endif
return prog;
}示例3: create_with_binary
/// Creates a new program with \p binary of \p binary_size in
/// \p context.
///
/// \see_opencl_ref{clCreateProgramWithBinary}
static program create_with_binary(const unsigned char *binary,
size_t binary_size,
const context &context)
{
const cl_device_id device = context.get_device().id();
cl_int error = 0;
cl_int binary_status = 0;
cl_program program_ = clCreateProgramWithBinary(context,
uint_(1),
&device,
&binary_size,
&binary,
&binary_status,
&error);
if(!program_){
BOOST_THROW_EXCEPTION(runtime_exception(error));
}
return program(program_, false);
}