Hi, Young
That is a choice.
But I just want transform A or B when each vertex computing , now I need transform A and
B. And in my program, the A and B are both somehow large.
Is there another way to share global variable between each vertex beside getAggregatedValue()
?
thanks a lot !
Luo
At 2014-01-11 01:17:21,"Young Han" <young.han@uwaterloo.ca> wrote:
Hi,
One way, though not a very clean way, would be to create an object that encapsulates what
you want to store in A and B. So, say you want A to be a DoubleWritable and B to be a Writable
object with two integers. Then you could just create a Writable object having three fields:
double, int, int. You'll have to implement a custom Writable class, but you won't need a special
aggregator.
Young
On Fri, Jan 10, 2014 at 2:54 AM, Luo <luoict@163.com> wrote:
hi all:
org.apache.giraph.aggregators has these tow methods:
void aggregate(A value)
A getAggregatedValue()
Now I want to use aggregate() in vertex_program to send value of type A for global aggregating,
however,
I want the output of custom aggregator is type B .
that is to say ,
void aggregate(A value)
B getAggregatedValue()
Is there any idea for this?
Thank a lot !
========================
Luo
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