I tried running the example arbitrary_stochstic.py. It bumps out an error CustomizablePickler(buffer, self._reducers).dump(obj) AttributeError: Can’t pickle local object ‘build_model..logp’ There is one post which explains this is due to “it cannot pickle a function for parallel chain sampling”. …

Multiprocessing requires everything passed to thread to be picklable. Lambdas defined in local namespace are not picklable. PicklingError with njobs>1 using DensityDist · Issue #1995 · pymc-devs/pymc · GitHub I submitted a PR today actually to fix the example Update pymc3\examples by junpenglao …

What does it mean can not pickle due to not finding function for parallel chain sampling

Questions

bhomass April 24, 2018, 1:46am 3

Thank you, I fixed it according to the instructions.

Topic		Replies	Views
AttributeError: Can't pickle local object 'Op.make_py_thunk..rval' while running pymc3 Questions	1	986	June 29, 2018
When I am custom likelihood example I get pickle error when multiple chains are used Questions	2	544	April 5, 2019
Multiprocess sampling without using Pickle Questions	2	1499	June 16, 2018
Pickle error while using lambda function Questions	30	3962	January 9, 2022
Cannot pickle '_thread.lock' object type error when running pm.sample v5	3	628	May 4, 2023

What does it mean can not pickle due to not finding function for parallel chain sampling

Related topics