dinaharchery

Sum within a Output Stream

Discussion created by dinaharchery on Oct 2, 2009
Latest reply on Oct 5, 2009 by dinaharchery
Custom Reduce

Hello All,

I got a quick question I hope someone can help with regarding summing values. I could use a reduction kernel but since the reduction factor would be so small (~3 - 7) the overhead would not be worth it.

I have a single Stream made up of the following values (y,x):

4, 4, 2, 16, 56, 0, 9, 5

I would like to sum the Stream as the following:

4    56 ----> 60

4    0 -------> 4

2    9 -------> 11

16    5 ------> 21

Can this be done? As you can see, using the standard reduction would become an overload.

Thanks.

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