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rolandman99
Journeyman III
‎09-26-2010 03:22 PM

Ask for help on OpenCL programming: Moving Average of from many matrix

Hi,

I have a programming problem and want to solve using OpenCL. The problem is computing moving average from matrices

For example: I have 1000 matrices: A, B, C, D, ... (for example each matrix has size 4x4 or bigger)

I want to compute the moving average from these 1000 matrix (for example take Window size=5)

The result I want is

result[0] = (A+B+C+D+E)/5

result[1] = (B+C+D+E+F)/5

...and so on.

Is this kind of problem can be solved using OpenCL?

 

Thank you very much for help

 

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himanshu_gautam
Grandmaster
‎09-27-2010 04:28 AM

rolandman99,

Yeah, it can be implemented using OpenCL.Although there are a few suggestions which might help you to write a higher performance code.I will try to implement it myself if i had time.

1. If you are not able to fit in the arrays of size equal to your window in LDS it would not be a good idea to use LDS at all.As in this case you will be using one element only once.

2.Refer to chapter 4 of openCL programming guide to see what can help you to improve your performance.Memory access pattern being the most important if global memory has to be used.

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