@run-out thank u for your help

@run-out thank u for your help

@run-out This is a good way to sovle this problem, I am now learning how to use mutiprocessing package, can you show me a full example, Thank U.
And hope @backtrader can sovle this problem in later release.

@chewbacca I meet the same problem, is there a good way to sovled it?

when I am optimizing, memory is always not enough, it will consume all the memory from 30% to 100%. Finally, it will crash down.

1.the error code is :
multiprocessing.pool.MaybeEncodingError: Error sending result: '[<backtrader.cerebro.OptReturn object at 0x0000026A8C3C9FA0>]'. Reason: 'MemoryError()'

2.backtrader version: 1.9.76.123

3.computer RAM/memory: 16GB

@vladisld Has memory leak problem been solved?can you show me the code, I meet the same problem,tnank u .