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When I run memory.size(max=NA) I get: [1] 16264

But memory.size(max=T) gives me [1] 336.88

When I look at Task Manager, the 4 threads are using a total of ~1,000 MB (1/16 of my 16GB of available RAM) but they are using 100% of my CPU. While running, all processes combined are only using 50% of my 16GB of available RAM.

Whenever I try to increase memory allocation with memory.size(max=1000), I get the warning message: 

Warning message:
In memory.size(max = 1000) : cannot decrease memory limit: ignored

What is going on here?

1) Is my CPU just slow given the amount of RAM I have? (Intel i7-6500U 2.5 GHz)

2) Does memory allocation require additional steps when using parallel threading? (e.g. doParallel)

Pablo Boswell
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  • Answers are great on this post The first answer gives a great link that advice to set the memory limit from the command processor and not directly R https://stackoverflow.com/questions/1395229/increasing-or-decreasing-the-memory-available-to-r-processes – Frostic Mar 19 '18 at 21:29
  • I actually found this post, but the link you mention is now dead – Pablo Boswell Mar 19 '18 at 22:59
  • Not the mirror link: https://web.archive.org/web/20091208054821/http://gking.harvard.edu/zelig/docs/How_do_I2.html – Frostic Mar 20 '18 at 18:35
  • @MaxFt Tried it and I get "name [...] specified in target box is not valid. Make sure the path and file name are correct." – Pablo Boswell Mar 21 '18 at 18:12

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