[This is preliminary documentation and is subject to change.]
Attributes are key/value pairs that can be attached to communicators,
and are generally used to maintain communicator-specific information
across different libraries or different languages.
Namespace:
MPIAssembly: MPI (in MPI.dll)
Version: 0.9.0.0 (0.9.0.0)
Syntax
| C# |
|---|
public class Attribute : IDisposable |
| Visual Basic (Declaration) |
|---|
Public Class Attribute _ Implements IDisposable |
| Visual C++ |
|---|
public ref class Attribute : IDisposable |
Remarks
Each instance
of the Attribute class is the "key" for a different kind of
data, and can be used to index the AttributeSet associated
with a communicator to query or modify the corresponding value. Each
attribute is created with the type of data its value will store (e.g.,
an integer, a string, an object) and a duplication policy, which
describes how a value of that type is propagated when communicators
are cloned.
Attributes can be used for interoperability with native code. Any attribute whose type is a value type (e.g., primitive type or structure) that has either deep-copy or no-copy semantics will be stored on the low-level MPI communicator. These attributes can then be accessed by native code directly via the low-level MPI interface.
