accelerator_view Class
Represents a virtual device abstraction on a C++ AMP data-parallel accelerator.
Syntax
class accelerator_view;
Members
Public Constructors
| Name | Description |
|---|---|
| accelerator_view Constructor | Initializes a new instance of the accelerator_view class. |
| ~accelerator_view Destructor | Destroys the accelerator_view object. |
Public Methods
| Name | Description |
|---|---|
| create_marker | Returns a future to track the completion of all commands submitted so far to this accelerator_view object. |
| flush | Submits all pending commands queued to the accelerator_view object to the accelerator for execution. |
| get_accelerator | Returns the accelerator object for the accelerator_view object. |
| get_is_auto_selection | Returns a Boolean value that indicates whether the runtime will automatically select an appropriate accelerator when the accelerator_view object is passed to a parallel_for_each. |
| get_is_debug | Returns a Boolean value that indicates whether the accelerator_view object has the DEBUG layer enabled for extensive error reporting. |
| get_queuing_mode | Returns the queuing mode for the accelerator_view object. |
| get_version | Returns the version of the accelerator_view. |
| wait | Waits for all commands submitted to the accelerator_view object to finish. |
Public Operators
| Name | Description |
|---|---|
| operator!= | Compares this accelerator_view object with another and returns false if they are the same; otherwise, returns true. |
| operator= | Copies the contents of the specified accelerator_view object into this one. |
| operator== | Compares this accelerator_view object with another and returns true if they are the same; otherwise, returns false. |
Public Data Members
| Name | Description |
|---|---|
| accelerator | Gets the accelerator object for the accelerator_view object. |
| is_auto_selection | Gets a Boolean value that indicates whether the runtime will automatically select an appropriate accelerator when the accelerator_view object is passed to a parallel_for_each. |
| is_debug | Gets a Boolean value that indicates whether the accelerator_view object has the DEBUG layer enabled for extensive error reporting. |
| queuing_mode | Gets the queuing mode for the accelerator_view object. |
| version | Gets the version of the accelerator. |
Inheritance Hierarchy
accelerator_view
Remarks
An accelerator_view object represents a logical, isolated view of an accelerator. A single physical compute device can have many logical, isolated accelerator_view objects. Each accelerator has a default accelerator_view object. Additional accelerator_view objects can be created.
Physical devices can be shared among many client threads. Client threads can cooperatively use the same accelerator_view object of an accelerator, or each client can communicate with a compute device via an independent accelerator_view object for isolation from other client threads.
An accelerator_view object can have one of two queuing_mode Enumeration states. If the queuing mode is immediate, commands like copy and parallel_for_each are sent to the corresponding accelerator device as soon as they return to the caller. If the queuing mode is deferred, such commands are queued up on a command queue that corresponds to the accelerator_view object. Commands are not actually sent to the device until flush() is called.
Requirements
Header: amprt.h
Namespace: Concurrency
accelerator
Gets the accelerator object for the accelerator_view object.
Syntax
__declspec(property(get= get_accelerator)) Concurrency::accelerator accelerator;
accelerator_view
Initializes a new instance of the accelerator_view class by copying an existing accelerator_view object.
Syntax
accelerator_view( const accelerator_view & other );
Parameters
other
The accelerator_view object to copy.
create_marker
Returns a future to track the completion of all commands submitted so far to this accelerator_view object.
Syntax
concurrency::completion_future create_marker();
Return Value
A future to track the completion of all commands submitted so far to this accelerator_view object.
flush
Submits all pending commands queued to the accelerator_view object to the accelerator for execution.
Syntax
void flush();
Return Value
Returns void.
get_accelerator
Returns the accelerator object for the accelerator_view object.
Syntax
accelerator get_accelerator() const;
Return Value
The accelerator object for the accelerator_view object.
get_is_auto_selection
Returns a Boolean value that indicates whether the runtime will automatically select an appropriate accelerator when the accelerator_view is passed to a parallel_for_each.
Syntax
bool get_is_auto_selection() const;
Return Value
true if the runtime will automatically select an appropriate accelerator; otherwise, false.
get_is_debug
Returns a Boolean value that indicates whether the accelerator_view object has the DEBUG layer enabled for extensive error reporting.
Syntax
bool get_is_debug() const;
Return Value
A Boolean value that indicates whether the accelerator_view object has the DEBUG layer enabled for extensive error reporting.
get_queuing_mode
Returns the queuing mode for the accelerator_view object.
Syntax
queuing_mode get_queuing_mode() const;
Return Value
The queuing mode for the accelerator_view object.
get_version
Returns the version of the accelerator_view.
Syntax
unsigned int get_version() const;
Return Value
The version of the accelerator_view.
is_auto_selection
Gets a Boolean value that indicates whether the runtime will automatically select an appropriate accelerator when the accelerator_view is passed to a parallel_for_each.
Syntax
__declspec(property(get= get_is_auto_selection)) bool is_auto_selection;
is_debug
Gets a Boolean value that indicates whether the accelerator_view object has the DEBUG layer enabled for extensive error reporting.
Syntax
__declspec(property(get= get_is_debug)) bool is_debug;
operator!=
Compares this accelerator_view object with another and returns false if they are the same; otherwise, returns true.
Syntax
bool operator!= ( const accelerator_view & other ) const;
Parameters
other
The accelerator_view object to compare with this one.
Return Value
false if the two objects are the same; otherwise, true.
operator=
Copies the contents of the specified accelerator_view object into this one.
Syntax
accelerator_view & operator= ( const accelerator_view & other );
Parameters
other
The accelerator_view object to copy from.
Return Value
A reference to the modified accelerator_view object.
operator==
Compares this accelerator_view object with another and returns true if they are the same; otherwise, returns false.
Syntax
bool operator== ( const accelerator_view & other ) const;
Parameters
other
The accelerator_view object to compare with this one.
Return Value
true if the two objects are the same; otherwise, false.
queuing_mode
Gets the queuing mode for the accelerator_view object.
Syntax
__declspec(property(get= get_queuing_mode)) Concurrency::queuing_mode queuing_mode;
version
Gets the version of the accelerator_view.
Syntax
__declspec(property(get= get_version)) unsigned int version;
wait
Waits for all commands submitted to the accelerator_view object to finish.
Syntax
void wait();
Return Value
Returns void.
Remarks
If the queuing_mode is immediate, this method returns immediately without blocking.
~accelerator_view
Destroys the accelerator_view object.
Syntax
~accelerator_view();