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From |
Michael Norman Mitchell <Michael.Norman.Mitchell@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Best machine to build for running STATA |

Date |
Mon, 22 Feb 2010 17:56:49 -0800 |

Dear Dana

On 2010-02-22 4.50 PM, Dana Chandler wrote:

Hi Michael - This is extremely helpful. I really appreciate the link to the report and the estimation of how much memory a dataset will take up. I have a few follow-up questions: Re: Memory allocation... Christopher Baum mentions that for a 13 GB data set, 24GB of RAM would be recommended. Are there any rules of thumb people use in terms of how much memory a system should have to comfortably do analysis on a dataset of a given size? Also, how much memory should be allocated to a dataset. If you have a 250mb dataset, is allocating 1gig overkill, can this be harmful?

Re: hardware... I'm not an expert on different kinds of RAM and hard drives. Does anyone have any experience with what types of RAM (SRAM vs. DRAM vs. ??) or hard drives (SCSI vs. SATA or ATA) might work best with STATA. What about ways to optimize the page file or use virtual memory?

Re: the report... it is mentioned that they chose a "problem size" that was relatively large to run all the simulations that measured speed of X processors vs. 1. I may have missed it, but do they ever mention if the ratio of the gains or the "percentage parallelization" stays constant as the problem size grows? I frequently encounter problem sizes larger than those stated and would like to know if the percentage parallelizations will remain about the same.

Michael N. Mitchell See the Stata tidbit of the week at... http://www.MichaelNormanMitchell.com Visit me on Facebook at... http://www.facebook.com/MichaelNormanMitchell

On Mon, Feb 22, 2010 at 4:56 PM, Michael Norman Mitchell <Michael.Norman.Mitchell@gmail.com> wrote:Greetings Two factors come to my mind as being very important... 1) Having sufficient memory. This has been discussed today on the statalist, with links to how you can calculate your memory needs. 2) Whether you will be using Stata/MP, and how many cores you want to get (both for your Stata/MP license and physical cores). For large statistical models, you can save considerable time running models on four cores, for example. This link contains a detailed report showing the time savings one gets using Stata/MP, and how much time savings you obtain for each additional core you add for each command. http://www.stata.com/statamp/report.pdf These are not the only factors, but I feel they are among the major factors. I hope this helps, Michael N. Mitchell See the Stata tidbit of the week at... http://www.MichaelNormanMitchell.com Visit me on Facebook at... http://www.facebook.com/MichaelNormanMitchell On 2010-02-22 2.27 PM, Dana Chandler wrote:Hi fellow Statalisters - I was wondering if anyone has any suggestions or guidelines for what would be the ideal type of machine to build for intensive STATA-use. In particular, if you wanted to be able to run saturated regression models on large (several gigabyte) data sets in STATA, what would the ideal set up be? This is a computer that will be used exclusively for data-intensive tasks and mostly with STATA. The only requirement is that it has to be built on a windows x86 operating system. What type of hardware makes for the speediest STATA experience: harddrive type, RAM type, number of processors, etc. ? Thanks in advance, Dana * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/* * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/* * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

* * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Best machine to build for running STATA***From:*Dana Chandler <dchandler@gmail.com>

**Re: st: Best machine to build for running STATA***From:*Michael Norman Mitchell <Michael.Norman.Mitchell@gmail.com>

**Re: st: Best machine to build for running STATA***From:*Dana Chandler <dchandler@gmail.com>

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