I am using the NIH Nimbus system (unix) to analyze 140 chips with bioconductor. I can upload 10 chips without a problem; however, when I try to upload the 140 chips I receive an error: cannot allocate vector of size 526746 KB. I increased the memory in unix as follows: R -vsize=2500M -nsize=24M. While this command increased the memory, I still receive the same error message. Does anyone have another idea? Thanks, Nina Nina Joshi, PhD NIH/NCI/ Genetics Branch National Naval Medical Center, Bldg. 8, Rm. 5101 8901 Wisconsin Ave. Bethesda, MD. 20889-5101 (301) 435-5436 - phone (301) 496-0047 - fax [[alternative HTML version deleted]]