Calculating kmeans on a GPU

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Mailz Daizan
Mailz Daizan il 11 Set 2017
Risposto: Mailz Daizan il 12 Set 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 il 11 Set 2017
Modificato: Joss Knight il 11 Set 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.

Più risposte (2)

Walter Roberson
Walter Roberson il 11 Set 2017
Modificato: Walter Roberson il 11 Set 2017

Mailz Daizan
Mailz Daizan il 12 Set 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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