Module openj9.cuda

Package com.ibm.cuda

Class CudaModule

java.lang.Object

com.ibm.cuda.CudaModule

public final class CudaModule
extends Object

The CudaModule class represents a module that has been loaded on a CUDA-capable device.

When no longer required, a module must be unloaded (see unload()).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	CudaModule.Cache	The Cache class provides a simple mechanism to avoid reloading modules repeatedly.

Constructor Summary

Constructors

Constructor	Description
CudaModule(CudaDevice device, byte[] image)	Loads a module on the specified device, using the given image and the default options.
CudaModule(CudaDevice device, byte[] image, CudaJitOptions options)	Loads a module on the specified device, using the given image and the given options.
CudaModule(CudaDevice device, InputStream input)	Loads a module on the specified device from the given input stream using the default options.
CudaModule(CudaDevice device, InputStream input, CudaJitOptions options)	Loads a module on the specified device from the given input stream using the specified options.

Method Summary

Modifier and Type	Method	Description
CudaFunction	getFunction(String name)	Returns the function of the specified name from this module.
CudaGlobal	getGlobal(String name)	Returns the global variable of the specified name from this module.
CudaSurface	getSurface(String name)	Returns the surface of the specified name from this module.
CudaTexture	getTexture(String name)	Returns the texture of the specified name from this module.
void	unload()	Unloads this module from the associated device.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CudaModule

public CudaModule(CudaDevice device,
 byte[] image)
           throws CudaException

Loads a module on the specified device, using the given image and the default options.

Parameters:

device - the specified device

image - the module image

Throws:

CudaException - if a CUDA exception occurs

SecurityException - if a security manager exists and the calling thread does not have permission to load GPU modules

CudaModule

public CudaModule(CudaDevice device,
 byte[] image,
 CudaJitOptions options)
           throws CudaException

Loads a module on the specified device, using the given image and the given options.

Parameters:

device - the specified device

image - the module image

options - the desired options

Throws:

CudaException - if a CUDA exception occurs

SecurityException - if a security manager exists and the calling thread does not have permission to load GPU modules

CudaModule

public CudaModule(CudaDevice device,
 InputStream input)
           throws CudaException,
IOException

Loads a module on the specified device from the given input stream using the default options.

Parameters:

device - the specified device

input - a stream containing the module image

Throws:

CudaException - if a CUDA exception occurs

IOException - if an I/O error occurs reading input

SecurityException - if a security manager exists and the calling thread does not have permission to load GPU modules

CudaModule

public CudaModule(CudaDevice device,
 InputStream input,
 CudaJitOptions options)
           throws CudaException,
IOException

Loads a module on the specified device from the given input stream using the specified options.

Parameters:

device - the specified device

input - a stream containing the module image

options - the desired options

Throws:

CudaException - if a CUDA exception occurs

IOException - if an I/O error occurs reading input

SecurityException - if a security manager exists and the calling thread does not have permission to load GPU modules

Method Details

getFunction

public CudaFunction getFunction(String name)
                         throws CudaException

Returns the function of the specified name from this module.

Parameters:

name - the link-name of the desired function

Returns:

the function of the specified name

Throws:

CudaException - if a CUDA exception occurs

IllegalStateException - if this module has been unloaded (see unload())

getGlobal

public CudaGlobal getGlobal(String name)
                     throws CudaException

Returns the global variable of the specified name from this module.

Parameters:

name - the link-name of the desired global variable

Returns:

the global variable of the specified name

Throws:

CudaException - if a CUDA exception occurs

IllegalStateException - if this module has been unloaded (see unload())

getSurface

public CudaSurface getSurface(String name)
                       throws CudaException

Returns the surface of the specified name from this module.

Parameters:

name - the link-name of the desired surface

Returns:

the surface of the specified name

Throws:

CudaException - if a CUDA exception occurs

IllegalStateException - if this module has been unloaded (see unload())

getTexture

public CudaTexture getTexture(String name)
                       throws CudaException

Returns the texture of the specified name from this module.

Parameters:

name - the link-name of the desired texture

Returns:

the texture of the specified name

Throws:

CudaException - if a CUDA exception occurs

IllegalStateException - if this module has been unloaded (see unload())

unload

public void unload()
            throws CudaException

Unloads this module from the associated device.

Note that this has no effect on any caches.

Throws:

CudaException - if a CUDA exception occurs