memory question

*To*: mathgroup at smc.vnet.net*Subject*: [mg91198] memory question*From*: Jan Schmedes <jasch at crustal.ucsb.edu>*Date*: Sat, 9 Aug 2008 07:45:23 -0400 (EDT)

Dear group, I am running Mathematica 6.0.3 on a Mac Pro with 4 Gig memory. I have fortran binary files that I can read in correctly (numbers of order 10^6) using Import[...,"Real32"]. But for larger problems, the size of the binary file is about 80 Mb, all memory is used (if i hit top, VSIZE is 17G) and only 2% of the CPU are used, so it basically can not handle the file. Is there a way to decrease the precision at which the file is read in, for my purpose the precision does not have to be very high? Thank you Jan