why using gpu.Array.zeros I have error Undefined variable "parallel" or class "parallel.​gpu.gpuArr​ay.zeros" ?

the line of the code is: gpu = gpuDevice(); Z = parallel.gpu.gpuArray.zeros(8192, 1); Undefined variable "parallel" or class "parallel.gpu.gpuArray.zeros".

Answer 1

[Jill Reese]

What version of MATLAB are you using?

In R2010b-R2012a releases, the GPU object was named parallel.gpu.GPUArray. In those releases you would create an array of all zeros on the GPU using:

z = parallel.gpu.GPUArray.zeros(8192,1);

In R2012b, the GPU object was renamed to gpuArray, so in R2012b and onward you would create the same array using this line of code:

z = gpuArray.zeros(8192,1);

[Anastasiia]

I have R2012b, but I tried both variants. None of them work.

[Anastasiia]

I found my mistake: I used z = parallel.gpu.gpuArray.zeros(8192,1); but the rigth is z = parallel.gpu.GPUArray.zeros(8192,1);

So the problem was in the non-capital letters '..gpuArray..'

Thank you!