[R] Matrix scalar operation that saves memory?

Bert Gunter bgunter@4567 @end|ng |rom gm@||@com
Wed Apr 12 06:34:14 CEST 2023

I doubt that R's basic matrix capabilities can handle this, but have a look
at the Matrix package, especially if your matrix is some special form.


On Tue, Apr 11, 2023, 19:21 Shunran Zhang <szhang using ngs.gen-info.osaka-u.ac.jp>

> 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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