Dueling Deep Q Learning with Doom: Memory Error

[WuJunde]

I try to train Doom on my pc, and use the same code on the page.
But each time after I training it a while, it occur memory error in stack-frame process.
I check my memory usage while training, it keeps increasing while training.
I have 16GB RAM, is it enough? Or something wrong about the code?

[WuJunde]

I changed pretrain_length and memory_size to 10000 then it work. But I think my RAM should be enough.
Why comment 1million for GPU? it seems out of memory in the first exploration stage with out learning by gpu. I learn it by NIVIDA 1080 Ti GPU.