[R] Matrix scalar operation that saves memory?
Shunran Zhang
@zh@ng @end|ng |rom ng@@gen-|n|o@o@@k@-u@@c@jp
Wed Apr 12 04:21:12 CEST 2023
Hi all,
I am currently working with a quite large matrix that takes 300G of
memory. My computer only has 512G of memory. I would need to do a few
arithmetic on it with a scalar value. My current code looks like this:
mat <- 100 - mat
However such code quickly uses up all of the remaining memory and got
the R script killed by OOM killer.
Are there any more memory-efficient way of doing such operation?
Thanks,
S. Zhang
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