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Re: Preventing swapping (high memory use)
On May 18, 9:31 am, "Dr. David Kirkby" <david.kir... at onetel.net> wrote: > Szabolcs Horv=E1t wrote: > > Sometimes I don't realize how much memory a computation would take up > > (or I simply make a mistake, and start a calculation that requires too > > much memory), and my computer starts swapping. > > > This makes Mathematica (and often the OS too) completely unresponsive > > for a long time. In this case my only hope is that in spite of the > > system unresponsiveness I can manage to kill the kernel, so that I can > > at least save the notebook ... > > > Is there any way to prevent swapping, for example by putting a cap on > > the kernel's memory use? Even if the kernel just quits when it runs = out > > of memory, I still have the notebook. But if the computer gets so > > unresponsive that I have to restart it, then I lose the notebook too, > > which is a much more serious loss ... > > > I tried using MemoryConstrained (with $Pre), but it seems to constrain > > only the memory used by current computation, not the full kernel memory= use. > > > To summarize: I'm simply looking for a way to prevent the computer f= rom > > locking up because of excessive swapping. > > What OS ? WinXP on a laptop (i.e. slow hard drive).