parallel perfix sum in matlab

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hadi
hadi 2014-10-19
评论： Edric Ellis 2014-10-20
Hi
I need a code about (perfix sum) by matlab
help me please

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回答（1 个）

Edric Ellis
Edric Ellis 2014-10-20
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);
  2 个评论
hadi
hadi 2014-10-20
编辑：hadi 2014-10-20
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
Edric Ellis 2014-10-20
You need to use gpuArray as the error suggests, not gpuarray.

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