On Jul 20, 2012, at 9:38 AM, Harry Spier wrote: > Dear list members, > > As part of my application I create a list of lists of 1's and 0's > from an image file. > When the size of the list of lists is: 1055 x 1066 it works fine, > but when the size of the list of lists is: 4091 x 5023 then the > program aborts with the error message: > Racket Virtual Machine run out of memory: Aborting > > I've narrowed the error down to where I create the l create the list. > I.e. the error occurs during creation of the list and not during use > of the list. > I compiled the program with no debugging information using the > DrRacket "create executable" option and then ran the executable. > > Any suggestions of what I can do to get around this? > > Thanks, > Harry Spier > ____________________ > Racket Users list: > http://lists.racket-lang.org/users
I just ran the below inside of DrRacket on a 2-year old MacMini: Welcome to DrRacket, version 5.3.0.16--2012-07-18(b111241a/d) [3m]. Language: racket. > (define l (time (build-list (* 4091 5023) (λ (x) 1)))) cpu time: 19862 real time: 163710 gc time: 12883 > (length l) 20549093 > (* 4091 5023) 20549093 So creating this list takes a while in DrRacket with the standard configuration but traversing it is lighting fast, as you'd expect. Is it possible that you have set a memory limit or that you are creating other large data structures that consume space? The list is large but not that large. -- Matthias ____________________ Racket Users list: http://lists.racket-lang.org/users
