Access elements of distributed arrays from client
You can also create a
distributed object using some MATLAB® functions by specifying a
distributed output. The
following table lists the available MATLAB functions that can create
directly. For more information, see the Extended Capabilities section of the
function reference page.
Distributed arrays represent those arrays which are partitioned out among the workers in a parallel pool. A distributed array resembles a normal MATLAB array in the way you index and manipulate its elements, but none of its elements exists on the client.
Codistributed arrays that you create inside
spmd statements are accessible as
distributed arrays from the client.
gather function to retrieve
distributed arrays into the client work space.
|classUnderlying||(Not recommended) Class of elements within gpuArray or distributed array|
|distributed.cell||Create distributed cell array|
|distributed.spalloc||Allocate space for sparse distributed matrix|
|distributed.speye||Create distributed sparse identity matrix|
|distributed.sprand||Create distributed sparse array of uniformly distributed pseudo-random values|
|distributed.sprandn||Create distributed sparse array of normally distributed pseudo-random values|
|gather||Transfer distributed array, Composite array or gpuArray to local workspace|
|isaUnderlying||(Not recommended) True if distributed array's underlying elements are of specified class|
|isdistributed||True for distributed array|
|write||Write distributed data to an output location|
The methods for distributed arrays are too numerous to list here. Most resemble and behave the same as built-in MATLAB functions. See Run MATLAB Functions with Distributed Arrays.
Also among the methods are several for examining the characteristics of the array itself. Most behave like the MATLAB functions of the same name:
|Indication if array is distributed|
|Indication if array elements are real|
|Determine if underlying data in the array is of specified type|
|Length of vector or largest array dimension|
|Number of dimensions in the array|
|Size of array dimensions|
|Class (data type) of the underlying data in the array|
Introduced in R2008a