P192 speed test in ARM A35 chip about lpcnet

[jmvalin]

Make sure you're compiling as 64-bit ARMv8 (ideally with -O3 or even -Ofast). Also, where you using the version cited in the paper?

[wizardk]

@jmvalin , I used -Ofast and the model file is P192.

[jmvalin]

It's possible your CPU/cache/memory is just slower than the specific A53 (RPi 3B+) I was using for testing.

[wizardk]

@jmvalin Will you consider using multi-core for acceleration in the future?

[jmvalin]

Very unlikely. LPCNet would be very hard to parallelize across multiple cores because of its autoregressive sample-wise architecture (which is also what makes it fast in the first place). Even if it could be done, it would only benefit a few platforms that have slow cores that can't run in real-time, but not so slow that multi-core would still be too slow.

[wizardk]

I see. Thank you.