3 ms·
I look forward to the day we have orbital embedded ML. Comms take 3-6 magnitudes more energy than the rest of an embedded system so less comms use leads to a po
by datameta 6y ago
I look forward to the day we have orbital embedded ML. Comms take 3-6 magnitudes more energy than the rest of an embedded system so less comms use leads to a positive feedback loop of more energy and compute available for sensor reads, inferencing, and analysis.
- friseurtermin 6y agoIs communication that expensive energy-wise? Is this just a thing in space given the transport medium or a general rule?
- datameta 6y agoI don't know enough physics to comment on the effect of different media on EM emissions but from what I understand any potential effects would not be significant enough to negate an order of magnitude difference due to the the nature of broadcasting or even beam-forming a stream of data v.s. sending it down a physical channel that is in comparison a point to point use of resources to manipulate bits (ALU ops, SRAM r/w, Flash r/w). Might be able to find the paper I'm referencing. Will post tomorrow.
- datameta 6y agoFigure 2.2: Energy cost of different operations on 32-bit values in a leading 45nm foundry process https://people.csail.mit.edu/jrk/jrkthesis.pdf https://people.csail.mit.edu/jrk/jrkthesis.pdf (Page 21)
- friseurtermin 6y agoThanks!