different configuration impact

[Aya Mohammed]

Hello,

Is there a difference in communication, latency, or other aspects, beyond the physical arrangement of the generated tiles on the chip, between the following configurations: sims-sys=manycore-x_tiles=4-y_tiles=1-msm_run factorial.s and sims-sys=manycore-x_tiles=2-y_tiles=2-msm_run factorial.s? I understand that the first configuration results in a row of four cores on the chip, while the second forms a square.

thanks,

Aya

[Jonathan Balkind]

This is quite a broad question. The tiles themselves will be almost the same with the exception of their IDs and the mapping between flat IDs (0-3) and 2D IDs (0,0-1,1 vs 0,0-3,0). As a result, some addresses will belong to different L2 slices meaning that latency could be slightly different when accessing those addresses, but it will depend on the specific topology you choose and the addresses that you are accessing in practice.

Thanks,

Jon

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