projectpi-public — Public mailing list for projectpi.

[Projectpi-public] FASD project: Online survey launched

[<ben...@id...>]

Dear Open Source developer

I am doing a research project on "Fun and Software Development" in which I kindly invite you to participate.
You will find the online survey under http://fasd.ethz.ch/qsf/. The questionnaire consists of 53 questions and you will need about 15 minutes to complete it.

With the FASD project (Fun and Software Development) we want to define the motivational significance of fun when software developers decide to engage in Open Source projects. What is special about our research project is that a similar survey is planned with software developers in commercial firms. This procedure allows the immediate comparison between the involved individuals and the conditions of production of these two development models. Thus we hope to obtain substantial new insights to the phenomenon of Open Source Development.


With many thanks for your participation,
Benno Luthiger


PS:
The results of the survey will be published under http://www.isu.unizh.ch/fuehrung/blprojects/FASD/.
We have set up the mailing list fa...@we... for this study. Please see http://fasd.ethz.ch/qsf/mailinglist_en.html for registration to this mailing list.

_______________________________________________________________________

Benno Luthiger
Swiss Federal Institute of Technology Zurich
8092 Zurich

Mail: benno.luthiger(at)id.ethz.ch
_______________________________________________________________________

[Projectpi-public] Fwd:PI, Plouffe and Bellard, and openMoix

[Ian L. <Ian...@mq...>]

Hello,

  I am not a member of this list.  I just wanted to get this patch through
to Sayan but his mailbox is full and bouncing email.


Thanks,




Forwarded message follows:
>From: "Ian Latter" <Ian...@mq...>
>To: <sa...@pe...>, <m.g...@cq...>
>Subject:  PI, Plouffe and Bellard, and openMoix
>Date: Wed, 17 Dec 2003 00:23:15 +1000
>
> Hello Sayan and Myles,
> 
> 
>   I am one of three designers for the CHAOS openMosix distribution;
> 
>                       http://itsecurity.mq.edu.au/chaos/
> 
>   Searching through Google this evening, looking for openMosix sites
> in Australia, I came across Myles' site at the Central Queensland Uni;
> 
>      http://infocom.cqu.edu.au/Staff/Myles_Greber/Research/Cluster/
> 
> 
>   I saw that Myles was using  the Plouffe and Bellard algorithm to
> calculate PI, as a test suite for his cluster.  This is pretty cool; as
> the CHAOS "testapp" consists of an incrementing integer.  I went
> searching for PI software, until I came across Sayan's software;
> 
>                      http://projectpi.sourceforge.net/
> 
>   Which looked very interesting, particularly as the code pi1_f.c
> included comments seeking openMosix capabilities.
> 
>   Attached is an upgrade to that code.  I am offering it back to you,
> Sayan, for inclusion into your tree, per the GPL terms.  The code 
> mods are a little crude, in that the program will now fork a copy 
> off for each 9 PI digits (pseudo_main).  It would be better if there
> were a fork quantity option .. but not this evening .. not for a test
> application.
> 
>   I haven't tested this against an openMosix cluster, as I am 
> currently unable to access one, but I am quietly confident that
> it will work (it forks and completes correctly under a vanilla
> distribution).
> 
>   During my work, I broke the timers used in the main function, and 
> then found a better way to calculate them (from the following two
> sites);
> 
>              http://www.phys.ufl.edu/docs/porting-faq.html
>              http://rla.zoom.es/libc_17.html
> 
>   So I rewrote all of the timing code in pi1_f.c, also.
> 
> 
>   Take a look through it and let me know what you think.  If you have
> any questions then please don't hesitate to ask.  The updated
> version will probably find its way into the next version of CHAOS
> (maybe as "testapp2" or similar).
> 
> 
> 
> Regards,
> 
> 
> 
> 
> --
> Ian Latter
> Internet and Networking Security Officer
> Macquarie University

--
Ian Latter
Internet and Networking Security Officer
Macquarie University

[Projectpi-public] program for binary pi digits

[andrea b. <and...@ho...>]

Hello,
I just joined the projectpi group. I looked for the mail archive to see =
if my questions have already been answered but could not find it. So =
here they are:

I was wondering whether there is a program to create BINARY digits of =
PI?=20
Also, would anybody know the algorithm to convert an irrational =
(decimal) number into binary?

Thanks a lot in advance for your help,
Andrea