[R] choosing of CPU's to run R
Dear All, I am considering to buy a workstation. For the CPUs, I wonder whether anybody have the experience in choosing one for the R. Intel Xeon W3540 2.93 8MB/1066 QC CPU is much cheaper as compared with the Intel Xeon E5540 2.53 8MB/1066 QC CPU. However, its Hz 2.93 is bigger than 2.53. I wonder which one would run R quicker. Thank you. Huang [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] choosing of CPU's to run R
Dear Huang, I do not know how either of these run R in particular. However, the price difference is because the E5540 is a newer line of chip architecture than the W3540. One of the differences is the speed that data can be transferred to and from the chip (Intel now calls it the QPI, it used to be called the front side bus or just FSB). E5540's QPI speed is 5.8 gigatransfers per second W3540's QPI speed is 4.6 gigatransfers per second. You might also be interested in how much power they take. E5540 uses a maximum 80 watts W3540 uses a maximum 130 watts They both handle the same type (DDR3) and speed (1066) of RAM. If you want more details about them google Gainsetown the E5540 architecture codename Bloomfield the W3540 architecture codename I doubt you would see a big performance difference either way, but I cannot say that for certain. I hope that at least gives you a bit more information about them. Sorry I cannot give a straightforward answer. Best, Joshua On Thu, Aug 27, 2009 at 1:00 AM, huang min minhua...@gmail.com wrote: Dear All, I am considering to buy a workstation. For the CPUs, I wonder whether anybody have the experience in choosing one for the R. Intel Xeon W3540 2.93 8MB/1066 QC CPU is much cheaper as compared with the Intel Xeon E5540 2.53 8MB/1066 QC CPU. However, its Hz 2.93 is bigger than 2.53. I wonder which one would run R quicker. Thank you. Huang [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Joshua Wiley Senior in Psychology University of California, Riverside http://www.joshuawiley.com/ [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] choosing of CPU's to run R
Thanks, Joshua. It's quite helpful. Hope someone can give some idea whether the Hz or the QPI is relatively important in computing. Huang On Thu, Aug 27, 2009 at 4:41 PM, Joshua Wiley jwiley.ps...@gmail.comwrote: Dear Huang, I do not know how either of these run R in particular. However, the price difference is because the E5540 is a newer line of chip architecture than the W3540. One of the differences is the speed that data can be transferred to and from the chip (Intel now calls it the QPI, it used to be called the front side bus or just FSB). E5540's QPI speed is 5.8 gigatransfers per second W3540's QPI speed is 4.6 gigatransfers per second. You might also be interested in how much power they take. E5540 uses a maximum 80 watts W3540 uses a maximum 130 watts They both handle the same type (DDR3) and speed (1066) of RAM. If you want more details about them google Gainsetown the E5540 architecture codename Bloomfield the W3540 architecture codename I doubt you would see a big performance difference either way, but I cannot say that for certain. I hope that at least gives you a bit more information about them. Sorry I cannot give a straightforward answer. Best, Joshua On Thu, Aug 27, 2009 at 1:00 AM, huang min minhua...@gmail.com wrote: Dear All, I am considering to buy a workstation. For the CPUs, I wonder whether anybody have the experience in choosing one for the R. Intel Xeon W3540 2.93 8MB/1066 QC CPU is much cheaper as compared with the Intel Xeon E5540 2.53 8MB/1066 QC CPU. However, its Hz 2.93 is bigger than 2.53. I wonder which one would run R quicker. Thank you. Huang [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Joshua Wiley Senior in Psychology University of California, Riverside http://www.joshuawiley.com/ [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] choosing of CPU's to run R
My guess is that there is not a simple answer. My newest machines are extremely fast at doing: sum(rnorm(1e6)) relative to my older machines. But they are not so much faster at doing the work that I actually want done. But if there is a simple answer, I'd be keen to hear it. Patrick Burns patr...@burns-stat.com +44 (0)20 8525 0696 http://www.burns-stat.com (home of The R Inferno and A Guide for the Unwilling S User) huang min wrote: Thanks, Joshua. It's quite helpful. Hope someone can give some idea whether the Hz or the QPI is relatively important in computing. Huang On Thu, Aug 27, 2009 at 4:41 PM, Joshua Wiley jwiley.ps...@gmail.comwrote: Dear Huang, I do not know how either of these run R in particular. However, the price difference is because the E5540 is a newer line of chip architecture than the W3540. One of the differences is the speed that data can be transferred to and from the chip (Intel now calls it the QPI, it used to be called the front side bus or just FSB). E5540's QPI speed is 5.8 gigatransfers per second W3540's QPI speed is 4.6 gigatransfers per second. You might also be interested in how much power they take. E5540 uses a maximum 80 watts W3540 uses a maximum 130 watts They both handle the same type (DDR3) and speed (1066) of RAM. If you want more details about them google Gainsetown the E5540 architecture codename Bloomfield the W3540 architecture codename I doubt you would see a big performance difference either way, but I cannot say that for certain. I hope that at least gives you a bit more information about them. Sorry I cannot give a straightforward answer. Best, Joshua On Thu, Aug 27, 2009 at 1:00 AM, huang min minhua...@gmail.com wrote: Dear All, I am considering to buy a workstation. For the CPUs, I wonder whether anybody have the experience in choosing one for the R. Intel Xeon W3540 2.93 8MB/1066 QC CPU is much cheaper as compared with the Intel Xeon E5540 2.53 8MB/1066 QC CPU. However, its Hz 2.93 is bigger than 2.53. I wonder which one would run R quicker. Thank you. Huang [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Joshua Wiley Senior in Psychology University of California, Riverside http://www.joshuawiley.com/ [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] choosing of CPU's to run R
Patrick Burns wrote: My newest machines are extremely fast at doing: sum(rnorm(1e6)) relative to my older machines. But they are not so much faster at doing the work that I actually want done. ...like finishing your next book and that sort of stuff? ;-) -- O__ Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~ - (p.dalga...@biostat.ku.dk) FAX: (+45) 35327907 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
