Thanks to all (and especially Prof. Tierney) for the response. The box we are considering will spend probably over 90% of CPU time in R, so it's comforting to know that R compiles and pass all the test (at least once) on such platform.
(I switched my attention from Itanium to Opteron when I read that Itanium is slower than P4 for number crunching...) Best, Andy > From: Luke Tierney [mailto:[EMAIL PROTECTED] > > On 26 Aug 2003, Peter Dalgaard BSA wrote: > > > Dirk Eddelbuettel <[EMAIL PROTECTED]> writes: > > > > > On Tue, Aug 26, 2003 at 03:17:19PM -0400, Liaw, Andy wrote: > > > > Has anyone tried using R on the the AMD Opteron in > either 64- or > > > > 32-bit mode? If so, any good/bad experiences, > comments, etc? We > > > > are considering getting this hardware, and would like > to know if R > > > > can run smoothly on such a beast. Any comment much appreciated. > > > > > > http://buildd.debian.org/build.php?&pkg=r-base&arch=ia64&file=log > > > > > > has logs of R builds on ia64 since Nov 2001, incl. the outcome of > > > make check. We do not run the torture tests -- though I guess we > > > could on some of the beefier hardware such as ia64. > > > > I don't think that's quite the same beast, though. Opterons are the > > "x86-64" (or amd64) architecture and ia64 is Intel's, aka Itanium. > > Debian appears to be just warming up to including this > architecture: > > > http://lists.debian.org/debian-x86-> 64/2003/debian-x86-64-200308/thread > > s.html > > whereas they have had ia64 out for a while. > > > > SuSE has an Opteron option and Luke said he tried it. Apparently it > > has a functioning 64-bit compiler toolchain - I weren't > sure earlier > > whether they were just running a 64bit kernel and 32bit > applications, > > but when Luke says so, I believe it... > > > > I wasn't sure either, especially about default settings, but > 'file' says > > luke/R> file bin/R.bin > bin/R.bin: ELF 64-bit LSB executable, AMD x86-64, version 1 > (SYSV), dynamically linked (uses shared libs), not stripped > > and in R > > > Sys.info()["machine"] > machine > "x86_64" > > .Machine$sizeof.pointer > [1] 8 > > So it looks like a functional 64-bit setup so far. > > luke > > -- > Luke Tierney > University of Iowa Phone: 319-335-3386 > Department of Statistics and Fax: 319-335-3017 > Actuarial Science > 241 Schaeffer Hall email: [EMAIL PROTECTED] > Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu > > ------------------------------------------------------------------------------ Notice: This e-mail message, together with any attachments,...{{dropped}} ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
