Hi Martin,
Thanks for your explanation which make me understand BiocParallel
much better.
I compare memory usage in my code before packaged (using doSNOW) and after
packaged (using BiocParallel) and find the increased memory is caused by
the attached packages, especially 'SummarizedExperiment'.
In one R session I did library(SummarizedExperiment) and then saved search().
In another R session I loaded the packages on the search path in reverse order,
recording pryr::mem_used() after each. I ended up with
mem_used
methods 25870312
datasets
