Hi Bob, for (2), in my experiments, the overhead of the internal machinery of HMC started to increase with the trajectory length. This results in the achievable speedup of likelihood parallelization diminishing as a consequence of Amdahl’s law.
Hi Bob, for (2), in my experiments, the overhead of the internal machinery of HMC started to increase with the trajectory length. This results in the achievable speedup of likelihood parallelization diminishing as a consequence of Amdahl’s law.