Upper limit on parametric analysis tool analysis

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Hello all, I have a question, is there an upper limit on the number of analyses that can be run on a aws cluster through PAT? I have been having problems with running Resstock simulations for around 100,000 cases. The entire run seems to saturate at 11,000 cases without any reason. Is my server running out of memory? I have not added the OpenStudio results measure and a results folder is only 320 KB locally, calculating that for 100,000 cases, should it not be much lower than 320 GB, the total size of c3.8x.large?