Weekly Report (10/27)

@ phoenix

Last Thursday, I made the phoenix presentation and we discussed about that.

And I printed out the network traffic of phoenix (wordcount) on 16 CMP mesh topology using garnet network.

In the attached graph (network_traffic.pdf), the horizontal axis represents the source nodes and the vertical axis represents the destinations. 

the result is the amount of traffic from beginning to end of the program, and it does not show specific pattern.

I think I should use magic breaks and find the traffic patterns of map/reduce/merge phase.

@ Booksim

As I mentioned earlier, voq result finally gets better as we expected.

I only counted the accepted packets between 3000 and 6000 cycle. and then, calculated the throughput. (warm-up takes 3000 cycles)

I also used the infinite buffer (1,000,000,000 buffer).

because if the buffer size is small, the first packet in the injection queue will be blocked and voq cannot process other packets.

(3000cycle_infinite_buf.xlsx)

I tested more using UR traffic and UR+50%hotspot traffic,

If more portion of packet goes to the hotspot node, voq performs much better than novoq, of course.

But when I use UR traffic without hotspot, voq is not always better.

Thanks.

minjeong