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Hi I face a unique problem in R. Some times back I attempted Prudential Life Insurance Data Assessment for practice. I used randomforest in R and submitted my submission on kaggle. Now whenever I again run same model with same code on my PC I get error "cannot allocate vector of size 12.9 Gb" Some days ago I attempted same with doParallel package in R. First time model executed but now again it gives message "cannot allocate vector of size 12.9 Gb". I am not able to run model again. I closed down R, shut down PC, restarted, restarted R many times. But the error never goes. Can any body help here? Thanks in advance.