I am trying to run DE-MCMC with a Blackbox likelihood function. I have 3 parameters that go into the blackbox likelihood function. The program starts running and gives me the following output. It doesn’t really terminate even when I leave it running for a long time. Any idea why this is taking too long or maybe not terminating at all?
Population sampling (4 chains) DEMetropolis: [a1, a2, a3] Attempting to parallelize chains to all cores. You can turn this off with `pm.sample(cores=1)`. ... Population parallelization failed. Falling back to sequential stepping of chains. ... Sampling 4 chains for 0 tune and 1_050 draw iterations (0 + 4_200 draws total) took 1054 seconds.