gpucoder.ctranspose

Optimized GPU implementation of the MATLAB transpose function

Syntax

B = gpucoder.ctranspose(A)

Description

B = gpucoder.ctranspose(A) performs efficient out-of-place conjugate transpose on the GPU using shared memory. When called from MATLAB^® (out of the code generation context), gpucoder.ctranspose calls the built-in ctranspose function.

Examples

Conjugate Transpose of Complex Matrix

This example generates CUDA^® code to transpose a matrix.

In one file, write an entry-point function myTranspose that accepts a matrix input A. Use the gpucoder.ctranspose function to generate a GPU efficient implementation for transposing A.

function B = myTranspose(A)
     B = gpucoder.ctranspose(A);
end

Use the codegen function to generate CUDA MEX function.

input = complex(ones(1024,1024,'double'),ones(1024,1024,'double'));
codegen -config coder.gpuConfig('mex') -args {input} -report myTranspose

Input Arguments

A — Input array

vector | matrix

Input array, specified as a vector or matrix.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char
Complex Number Support: Yes

Output Arguments

B — Transposed array

vector | matrix

Transposed array, returned as a vector or matrix.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | logical | char

Limitations

• gpucoder.ctranspose does not support inputs that are of dimension greater than two.

Version History

Introduced in R2019a