crash if run on large number of samples

[dkhalenkw]

1. We need to run around 400 samples (each is RNA-seq data from one of the patients) but the FRASER crashes. (It runs ok with lower number of samples - <25).
2. machine specifications:
   CPUs: 8
   memory: 32849380
   storage: /home total: 11T used: 2,7T free: 8,3T
3. Programm is killed when running function countRNAData().
   with the following error: Error in sendMaster(try(eval(expr, env), silent = TRUE), FALSE) :
   ignoring SIGPIPE signal
   Calls: countRNAData ... bploop.lapply -> .send_to -> .send_to -> -> sendMaster
   Error in sendMaster(try(eval(expr, env), silent = TRUE), FALSE) :
   ignoring SIGPIPE signal
   Calls: countRNAData ... bploop.lapply -> .send_to -> .send_to -> -> sendMaster

The parallelization should be turned on by the following code:
if(.Platform$OS.type == "unix") { register(MulticoreParam(workers=min(10, multicoreWorkers())))
} else { register(SnowParam(workers=min(10, multicoreWorkers()))) }