Re: freeing memory used by Import
- To: mathgroup at smc.vnet.net
- Subject: [mg103640] Re: freeing memory used by Import
- From: markus <markusg.phys at googlemail.com>
- Date: Thu, 1 Oct 2009 06:37:49 -0400 (EDT)
- References: <email@example.com> <firstname.lastname@example.org>
On 3 Aug., 11:45, divisor <congruentialumina... at yahoo.com> wrote: > Hello MathGroup: > > As a result of some help from WRI support, the behavior is much more > clear to me now. I actually am not sure if it is a bug and I don't > know if it can be fixed in a subsequent release. > > Basically what is happening is that the result of the earlier > invocations are always in Out[n]. This is designed this way (from the > first Mathematica version, I guess) in order to support the "%-m" construct. > This is (of course) controlled by the $HistoryLength system variable. > > Since this application does not need to use "%-100" or "%-1000" (which > are fully supported by Mathematica) it can run with a much smaller > $HistoryLength setting. In fact, I will probably use 1 or 2 since I > just need to Export the graphic once it is rendered. > > I cannot imagine I could get this to work without help from the > vendor. > > Regards.. > > Roger Williams > Franklin Laboratory > On Jul 26, 12:53 am, divisor <congruentialumina... at yahoo.com> wrote: > > > Hello MathGroup: > > > Somehow running the following command a few times depletes all of the > > free <snipped/> But from my experience, even using $HistoryLength=1 does not solve the problem of memory leakage. After a large dataset has been loaded, it somehow remains in the memory and you can not get rid of it again unless you restart Mathematica. Remove[..] also does not work. If this is not a bug then I don't know...