Calculating kmeans on a GPU

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Mailz Daizan
Mailz Daizan le 11 Sep 2017
Kind time of the day, dear inhabitants of the forum. I want to ask whether anyone can help me calculate the clustering of kmeans on a GPU it is not included in the standard function gpuArray but it can be calculated as a user-defined function But how to do that? I'm new to matlab and can not figure out how to implement it.

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Joss Knight
Joss Knight le 11 Sep 2017
Modifié(e) : Joss Knight le 11 Sep 2017
gpuArray support for kmeans was added to MATLAB in R2016a
>> help gpuArray/kmeans
kmeans K-means clustering for GPU data
IDX = kmeans(X, K)
[IDX, C] = kmeans(X, K)
[IDX, C, SUMD] = kmeans(X, K)
[IDX, C, SUMD, D] = kmeans(X, K)
[ ... ] = kmeans(..., 'PARAM1',val1, 'PARAM2',val2, ...)
Example:
N = 1e6;
X = gpuArray([randn(N,2)+ones(N,2); randn(N,2)-ones(N,2)]);
[cidx, ctrs] = kmeans(X, 2);
See also kmeans, gpuArray.

Plus de réponses (2)

Walter Roberson
Walter Roberson le 11 Sep 2017
Modifié(e) : Walter Roberson le 11 Sep 2017

Mailz Daizan
Mailz Daizan le 12 Sep 2017
Thank you all very much for the answers, I'll get to the weekend before PC I'll try it!

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