parallel perfix sum in matlab

Hi

I need a code about (perfix sum) by matlab

help me please

Answer 1

[Edric Ellis]

In MATLAB, CUMSUM calculates the prefix sum. You can run this in parallel on a gpuArray like so:

x = gpuArray.rand(1, 100); % random vector
c = cumsum(x);

[hadi]

thanks

but gpuarray have error in matlab:

Cannot find an exact (case-sensitive) match for 'gpuarray'.

Do you want: gpuArray (in C:\Program Files\MATLAB\R2011b\toolbox\distcomp\gpu\gpuArray.m)?

what can I do?

[Edric Ellis]

You need to use gpuArray as the error suggests, not gpuarray.