versions.hpp File Reference

Wrappers for Runtime API functions involving versions - of the CUDA runtime and of the CUDA driver. More...

#include "error.hpp"
#include <ostream>
#include <utility>
#include <limits>

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Classes
struct	cuda::version_t
	A structure representing a CUDA release version. More...

Namespaces
	cuda
	Definitions and functionality wrapping CUDA APIs.

Typedefs
using	cuda::combined_version_t = int
	A combination of the major and minor version numbers for a CUDA release into a single integer, e.g. More...

Functions
constexpr version_t	cuda::version_numbers::none () noexcept
	This "value" is what the Runtime API returns if no version is supported by the driver. More...
version_t	cuda::version_numbers::make (combined_version_t combined_version) noexcept
	Convert an integer representing a major and minor number (e.g. More...
version_t	cuda::version_numbers::make (int major, int minor) noexcept
	Convert a pair integer representing a major and minor number (e.g. More...
version_t	cuda::version_numbers::driver ()
	Obtains the maximum version of the CUDA Runtime supported by the driver currently loaded by the operating system. More...
version_t	cuda::version_numbers::runtime ()
	Obtains the CUDA Runtime version. More...

Detailed Description

Wrappers for Runtime API functions involving versions - of the CUDA runtime and of the CUDA driver.

Also defines a cuda::version_t class for working with such versions (as they are not really single numbers) - which is what the wrappers return.

Function Documentation

driver()

version_t cuda::version_numbers::driver ( )

inline

Obtains the maximum version of the CUDA Runtime supported by the driver currently loaded by the operating system.

Todo:

In future CUDA versions which support C++17 - return an optional

Returns

If an nVIDIA GPU driver is installed on this system, the maximum CUDA version it supports is returned. If no version is supported, none() is returned.

make() [1/2]

version_t cuda::version_numbers::make ( combined_version_t  combined_version )

inlinenoexcept

Convert an integer representing a major and minor number (e.g.

55 for major version 5, minor version 5) into the version type we use (version_t).

make() [2/2]

version_t cuda::version_numbers::make ( int  major, int  minor  )

inlinenoexcept

Convert a pair integer representing a major and minor number (e.g.

5 and 5) into the version type we use (version_t).

none()

constexpr version_t cuda::version_numbers::none ( )

noexcept

This "value" is what the Runtime API returns if no version is supported by the driver.

Note

this is super-ugly, I'd rather n ot use it at all

runtime()

version_t cuda::version_numbers::runtime ( )

inline

Obtains the CUDA Runtime version.

Note

unlike {driver()}, the value of none() cannot be returned, as we are actually using the runtime to obtain the version.