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title Concurrency namespace enums (AMP) | Microsoft Docs
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ms.date 11/04/2016
ms.reviewer
ms.suite
ms.tgt_pltfrm
ms.topic article
f1_keywords
amp/Concurrency::access_type
amp/Concurrency::queuing_mode
dev_langs
C++
ms.assetid 4c87457e-184f-4992-81ab-ca75e7d524ab
caps.latest.revision 8
author mikeblome
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manager ghogen

Concurrency namespace enums (AMP)
access_type Enumeration queuing_mode Enumeration

access_type Enumeration

Enumeration type used to denote the various types of access to data.

enum access_type;

Values

Name Description
access_type_auto Automatically choose the best access_type for the accelerator.
access_type_none Dedicated. The allocation is only accessible on the accelerator and not on the CPU.
access_type_read Shared. The allocation is accessible on the accelerator and is readable on the CPU.
access_type_read_write Shared. The allocation is accessible on the accelerator and is writable on the CPU.
access_type_write Shared. The allocation is accessible on the accelerator and is both readable and writable on the CPU.

queuing_mode Enumeration

Specifies the queuing modes that are supported on the accelerator.

enum queuing_mode;

Values

Name Description
queuing_mode_immediate A queuing mode that specifies that any commands, for example, parallel_for_each Function (C++ AMP), are sent to the corresponding accelerator device as soon as they return to the caller.
queuing_mode_automatic A queuing mode that specifies that commands be queued up on a command queue that corresponds to the accelerator_view object. Commands are sent to the device when accelerator_view::flush is called.

See Also

Concurrency Namespace (C++ AMP)