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Re: st: Stata and CPu usage


From   Tunga Kantarcı <tungakantarci@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Stata and CPu usage
Date   Tue, 29 May 2012 11:36:36 +0200

Hello Nick and Mukund,

I also believe that my Stata/SE is using one of the two processors. So
the questions are

1. How do I make Stata/SE use both of the two processors?
2. How can I check that lpoly is parallelizable?

Tunga

> -----Original Message-----
> From 	  Mukund Chari <mukundc@uw.edu>
> To 	  "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
> Subject 	  RE: st: Stata and CPu usage
> Date 	  Mon, 28 May 2012 23:05:19 +0000
> Hello Tunga,
>
> Nick is probably right.
>
> You might also want to consider whether the routine you are executing (lpoly in your case) is:
>
> a) Parallelizable: certain algorithms need to run serially, and cannot be parallelized. You might want to check if this is true in the case of lpoly.
> b) If this routine is parallelizable, whether Stata implements a parallelized version of the routine in the Multi-Processor version. If not, getting this to run on a MP version might not help.
>
> Best,
> Mukund.
>
>
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Sanders
> Sent: Monday, May 28, 2012 1:45 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: Re: st: Stata and CPu usage
>
> Hello Tunga,
>
> I'm not a Windows user myself (so I can't verify this is how Windows Task Manager expresses CPU usage), but this is my guess:
>
> 1) The total processor power available to you, given a Core 2 Duo, is X
> 2) The power of one of those two processors is then X/2
> 3) Stata/SE can only use one processor at a time (given it isn't Stata/MP)
> 4) 50% is actually Stata/SE using the full power of one of your two processors
>
> Might that be the case?
>
> -Nick
>
> On May 28, 2012, at 11:35 AM, Tunga Kantarci wrote:
>
>> Hello,
>>
>> I have an Intel Core 2 Duo CPU T7700 2.4 Ghz system with 32 gm ram and
>> 32 bit operating system. I use Windows 7. I use Stata/SE.
>>
>> I am using the lpoly command and the calculations take too long. I
>> happened to look at the CPU usage at Windows task manager and realized
>> that the CPU usage of Stata/SE does not exceed 50%.
>>
>> I wonder why this is the case and if there is a way to increase the CPU usage?
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