From owner-chemistry;at;ccl.net Thu Nov 6 15:59:00 2008 From: "David Hose anthrax_brothers%%hotmail.com" To: CCL Subject: CCL:G: G03W and 64bit Message-Id: <-38049-081106155801-26784-ZiG9xF7F017tb6EqKOvUcQ*server.ccl.net> X-Original-From: "David Hose" Date: Thu, 6 Nov 2008 15:57:57 -0500 Sent to CCL by: "David Hose" [anthrax_brothers() hotmail.com] I too run G03 rev E.01 on an XP-64 machine without any problems. The calculations will run fine on my dual core - dual processor system with the calculation tasked across all four cores (where G03 allows it). The major bug bear is the 32-bit addressing, so only have access to ca 3 Gb of RAM and a total of ca 16 Gb scratch files. So with those limitations, running high levels of theory and composite methods can be a little hit and miss even on relatively small molecules. :-( Regards, Dave. Sent to CCL by: Steve Williams [willsd..*..appstate.edu] I have G03W E.01 running on a dual core opteron machine under XP-64. It does take advantage of both cores (with %nprocshared=2) but I think it does do 32-bit dis addresses, so it does not get around the scratch file size limitations of 32 bit versions of G03. It is pretty quick and I do like seeing the task manager reporting nearly 100% use of cpu for DFT jobs. Steve Williams Anastasios Papadopoulos anastp^chem.auth.gr wrote: > > Sent to CCL by: Anastasios Papadopoulos [anastp*|*chem.auth.gr] > Hi, > > I will ask if somebody knows, the Gaussian 03W E.01 version works in > 64bit Windows XP? > > Thanks in advance.http://www.ccl.net/chemistry/sub_unsub.shtml> > Job: http://www.ccl.net/jobsConferences: > http://server.ccl.net/chemistry/announcements/conferences/> >