It could be working on more than just Linux and Linux-alike operating systems, The number of cores can't be changed by the user.
> parameter_result <- eval_parameter(real = real, sim = sim, type = "raw" , method = "samplemethod")
Loading required package: SingleCellExperiment
[1] "evaluating cell type .. stromal cell"
[1] "finding mean and variance "
Error in mclapply(sim_list, function(ds) { :
'mc.cores' > 1 is not supported on Windows
It could be working on more than just Linux and Linux-alike operating systems, The number of cores can't be changed by the user.