Hello,
some more questions appeared:
1. In Epiphany Architecture Reference Manual (PDF) page 11: Each routing link can transfeer up to 8 bytes of data on every clock cycle, allowing 64bytes of data flow through every routing node on every clock cycle.
Does "routing link" considering the cMesh-network only? How to come about 64 bytes of data flow? I thought of 5 connections (to NEWS + to mesh node interface) but there is no way for calculation to get 64bytes?!
2. Statement: The 12 bit for coordinate based addressing scheme allows addressing 4095 cores.
But I also read that the processing system provides broadcasting of data to processing nodes by columns, rows, (planes -> I think 3D modelling is not topical) and/or to all of the processing nodes using a single data transaction.
So the Core-ID's e.g. 111111000000 (row broadcast), 000000111111 (column broadcast) are not available for ID's or?
Therefore: Is it right, that you can't address 4095 cores while using the broadcast concept?
Kind regards,
mx