pagefun makes an error

The following code makes an error. How can I solve it?

b = gpuArray(repmat([1 2 ; 2 2; 4 3], 1, 1, 3));
pagefun(@norm, b)

Error using gpuArray/pagefun Function passed as first input argument contains unsupported or unknown function 'norm'.

What is the corrected code?

I am using Matlab 2014a, Parallel Computing Toolbox Version 6.4 and Gigabyte GTX750.

Thanks.

Answer 1

[Edric Ellis]

pagefun supports only a limited set of functions. These are described in the documentation.

[sungho Kang]

Hi and thanks Edric.

But in the doc. norm is supported fun with pagefun, right?

[Joss Knight]

No. The doc says:

Currently the supported values for FUN are:

Most element-wise gpuArray functions, listed in Run Built-In Functions on a GPU, and the following:

• @ctranspose
• @fliplr
• @flipud
• @inv
• @mldivide
• @mrdivide
• @mtimes
• @rot90
• @transpose

Answer 2

[Joss Knight]

The corrected code is

ans = sqrt(sum(b.*b, 1));