allocating enough memory on a posit server

Hello!
while running reclin2 functions, i am getting the following error message:
Error: cannot allocate vector of size 193.0 Mb
How do I allow more memory to be used?
I am working on the Posit workbench, using 8 cores. The above vector size changes every time, depending on what i am trying to compare. I get 'unlimited' when asking ulimit in terminal.
thanks!