I think it allocates the memory from the virtual address space (VAS) which is either 32 or 64 bit depending on your machine and OS. If the space required by J fits in the RAM then it all happens in RAM, if it is larger than the RAM then the OS automatically starts page swaps.
You might be interested in this thread: http://www.jsoftware.com/pipermail/programming/2008-December/013143.html In the end, if you have a 64-bit OS and 32GB RAM then I think that J will automatically use all of the RAM if required. You will need to set edit->configure->parameters->memory limit to >32GB though and use 64-bit J. 2009/4/5 Björn Helgason <[email protected]>: > I guess you will consider 64 bit operating system > > 2009/4/5 <[email protected]> > >> I am going to buy a Dell T5400 to run J on. >> >> This machine allows one to install 32GB of memory. >> >> What is the command that would allow me to use a large hunk >> of the 32GB for J? >> >> Or... >> >> Does J automatically adjust to use a certain portion of >> memory when it starts? >> >> thanks >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > > > > -- > Björn Helgason, Verkfræðingur > Fugl&Fiskur ehf, > Þerneyjarsundi 23, Hraunborgum > Po Box 127,801 Selfoss , > t-póst: [email protected] > gsm: +3546985532 > Landslags og skrúðgarðagerð, gröfuþjónusta > http://groups.google.com/group/J-Programming > > > Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans > > góður kennari getur stigið á tær án þess að glansinn fari af skónum > /|_ .-----------------------------------. > ,' .\ / | Með léttri lund verður | > ,--' _,' | Dagurinn í dag | > / / | Enn betri en gærdagurinn | > ( -. | `-----------------------------------' > | ) | (\_ _/) > (`-. '--.) (='.'=) ♖♘♗♕♔♙ > `. )----' (")_(") ☃☠ > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- http://www.ixquick.com/ Ixquick Protects Your Privacy! The only search engine that does not record your IP address. http://www.vivapalestina.org/ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
