Matthew Brand-2 wrote: > > Hi Eric, > > On Mon, Dec 8, 2008 at 2:58 PM, Eric Iverson <[EMAIL PROTECTED]> > wrote: >> RAM is not the limit. THE OS makes RAM essentialy invisible to >> applications. >> Actively and randomly using an allocation much larger than RAM will work, >> but because of swapping between page file space and RAM space performance >> will be much slower than if it fit into RAM. > > [...] > > I am using Ubunto 64-bit as a virtual machine in VMWare Fusion on OSX > 10.5.5 with 2Gb RAM on a MacBook Pro. > Let's guess then that your swap is about 4 Gb large. Try then setting up swap to 64Gb and do your calculation with the whole file at once. My guess is that your program will be irrecoverably thrashed within a few minutes. RAM still seems to me to be the limit here. In any case, let me know about results if you try something along these lines.
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