[astro] Re: [wcl] FW: corrected PPAM paper draft
Anthony Waters
watera2 at cs.rpi.edu
Sun Nov 8 23:24:14 EST 2009
This contains the updated abstract and introduction. I could not find
any numbers for how many of our users are using GPUs.
Since I have to register for classes at 8:30 am tomorrow I will have
some time to make changes in the morning, if need be
On Sun, Nov 8, 2009 at 9:37 PM, Boleslaw Szymanski
<boleslaw.szymanski at gmail.com> wrote:
> Anthony or Travis,
>
> attached are modified abstract and introduction, based on zip in Anthony
> file. Could you merged it into the current source and generate new pdf?
>
> On Sun, Nov 8, 2009 at 6:38 PM, Malik Magdon-Ismail <magdon at cs.rpi.edu>
> wrote:
>>
>> Hi,
>>
>> I read through. It looks good. I have a very minor suggestion (unless I
>> already missed it). In the acknowledgement we may state the number of BOINC
>> volunteers and what fraction are GPUs. It could go in the acknowledgements
>> or somewhere in the intro.
>> -Malik
>>
>> --------------------------------------------------------------------------
>> Have Faith in Probability
>>
>> Malik Magdon-Ismail
>> Associate Professor of Computer Science
>> Rensselaer Polytechnic Institute (RPI)
>>
>> Office: Rm 312 Lally mail: Rm 207, Lally Building,
>> email: magdon at cs.rpi.edu CS Department, RPI,
>> tel: 518-276-4857 110 8th Street,
>> fax: 518-276-4033 Troy, NY 12180-3590.
>> web: http://www.cs.rpi.edu/~magdon
>> key: http://www.cs.rpi.edu/~magdon/MalikMagdon-Ismail.PublicKey.asc
>> --------------------------------------------------------------------------
>>
>> On Sun, 8 Nov 2009, Anthony Waters wrote:
>>
>>> Updated it to be a X4 940, also changed it from Phemom to a Phenom, I
>>> can make changes/updates until about midnight tonight (another 5-6
>>> hours). I have class tomorrow morning so I won't be able to change
>>> anything tomorrow.
>>>
>>> On Sun, Nov 8, 2009 at 4:37 PM, Andreas Przystawik
>>> <andreas.przystawik at uni-rostock.de> wrote:
>>>>
>>>> Just had a short look and one eror I missed first was the CPU we compare
>>>> to. It is of course a PhenomII X4 940, not a PhenomII X2 as claimed several
>>>> times in the text.
>>>> ________________
>>>> Andreas Przystawik
>>>> Institut für Physik
>>>> Universität Rostock
>>>> 18051 Rostock
>>>>
>>>> Tel.: +49 381 498 6815
>>>> Fax: +49 381 498 6802
>>>> ________________________________________
>>>> Von: awaters1 at gmail.com [awaters1 at gmail.com] im Auftrag von Anthony
>>>> Waters [watera2 at cs.rpi.edu]
>>>> Gesendet: Sonntag, 8. November 2009 19:46
>>>> An: astro at cs.rpi.edu
>>>> Cc: Andreas Przystawik; Travis Desell; David Anderson
>>>> Betreff: Re: [astro] Re: [wcl] FW: corrected PPAM paper draft
>>>>
>>>> Fixed the spelling of NVIDIA to be Nvidia across the paper
>>>>
>>>> On Sun, Nov 8, 2009 at 1:41 PM, Anthony Waters <watera2 at cs.rpi.edu>
>>>> wrote:
>>>>>
>>>>> I've made most of the specific comment changes to get things moving,
>>>>> considering it is due 11/9 if I remember correctly.
>>>>>
>>>>> On Sat, Nov 7, 2009 at 3:44 PM, Malik Magdon-Ismail <magdon at cs.rpi.edu>
>>>>> wrote:
>>>>>>
>>>>>> Hi Travis,
>>>>>>
>>>>>> Can you circulate a new version.
>>>>>>
>>>>>> -Malik
>>>>>>
>>>>>>
>>>>>> --------------------------------------------------------------------------
>>>>>> Have Faith in Probability
>>>>>>
>>>>>> Malik Magdon-Ismail
>>>>>> Associate Professor of Computer Science
>>>>>> Rensselaer Polytechnic Institute (RPI)
>>>>>>
>>>>>> Office: Rm 312 Lally mail: Rm 207, Lally Building,
>>>>>> email: magdon at cs.rpi.edu CS Department, RPI,
>>>>>> tel: 518-276-4857 110 8th Street,
>>>>>> fax: 518-276-4033 Troy, NY 12180-3590.
>>>>>> web: http://www.cs.rpi.edu/~magdon
>>>>>> key:
>>>>>> http://www.cs.rpi.edu/~magdon/MalikMagdon-Ismail.PublicKey.asc
>>>>>>
>>>>>> --------------------------------------------------------------------------
>>>>>>
>>>>>> On Sat, 7 Nov 2009, Carlos Varela wrote:
>>>>>>
>>>>>>> Travis, Andreas, et al.:
>>>>>>>
>>>>>>> Here are my comments on the paper at:
>>>>>>>
>>>>>>> http://139.30.40.11/ppam2009.pdf
>>>>>>>
>>>>>>> I am sending them rather than editing directly to avoid collisions...
>>>>>>>
>>>>>>> GENERAL COMMENTS
>>>>>>>
>>>>>>> - The abstract should directly talk about the main contributions of
>>>>>>> the
>>>>>>> paper (mention the four specific GPU optimizations perhaps
>>>>>>> categorized at a
>>>>>>> high level)... INSERT SUCH A PARAGRAPH BEFORE "A 17 times
>>>>>>> speedup..."... and
>>>>>>> to keep size constant, perhaps REMOVE "While traditional... As such,"
>>>>>>>
>>>>>>> - If feasible, it would be interesting to quantify:
>>>>>>> - what percentage of MilkyWay at home volunteers have GPUs,
>>>>>>> - what is the respective processing power of the GPUs compared to
>>>>>>> the
>>>>>>> CPUs in the M at h project,
>>>>>>> - what GPU types are most commonly volunteered, how many GPUs (and
>>>>>>> how
>>>>>>> many CPUs) are typical per volunteer, etc.
>>>>>>> - what is the impact of the numerical precision on the
>>>>>>> astroinformatics
>>>>>>> application?
>>>>>>> - e.g., if we use DP we converge in X iterations, if we use SP we
>>>>>>> converge in Y iterations (Y=infinity?), etc; indeed a graph with
>>>>>>> precision
>>>>>>> in the X axis and iterations to convergence in the Y axis could help
>>>>>>> us
>>>>>>> precisely quantify when it is better to tradeoff precision for
>>>>>>> speedup.
>>>>>>>
>>>>>>> - Future directions would be interesting to include (further GPU
>>>>>>> optimizations, new GPU hardware generations, better GPGPU language
>>>>>>> support,
>>>>>>> GPU on BOINC, astroinformatics application, etc...)
>>>>>>>
>>>>>>>
>>>>>>> SPECIFIC COMMENTS
>>>>>>>
>>>>>>> Section 2:
>>>>>>>
>>>>>>> "Distributed Computing" --> "distributed computing"
>>>>>>>
>>>>>>> todays --> today's
>>>>>>>
>>>>>>> "around 60 times difference" --> ??? I think we want to mention
>>>>>>> TFlops/GPU ratio and Tflops/CPU ratio directly.
>>>>>>>
>>>>>>> Nvidia calls his --> Nvidia calls this
>>>>>>>
>>>>>>> Folding at Home GPUGRID --> Folding at Home, GPUGRID
>>>>>>>
>>>>>>> Both cases --> Both projects
>>>>>>>
>>>>>>> Section 3.1.:
>>>>>>>
>>>>>>> Title: "different" --> "Different"
>>>>>>>
>>>>>>> reproducability --> reproducibility
>>>>>>>
>>>>>>> manufactures --> manufacturers
>>>>>>>
>>>>>>> "Not until the latest...square root operations" --> REWRITE
>>>>>>> PARAGRAPH
>>>>>>> INTO TWO--IT IS UNCLEAR
>>>>>>>
>>>>>>> non-coherence --> non-adherence
>>>>>>>
>>>>>>> This even --> On the contrary, it
>>>>>>>
>>>>>>> Section 3.2.:
>>>>>>>
>>>>>>> memory controller --> the memory controller
>>>>>>>
>>>>>>> und --> and
>>>>>>>
>>>>>>> "As the calculations... by itself" --> REWRITE PARAGRAPH INTO
>>>>>>> TWO---IT IS
>>>>>>> UNCLEAR
>>>>>>>
>>>>>>> amount of threads --> number of threads
>>>>>>>
>>>>>>> in flight --> technical term: define before use (and use italics)
>>>>>>>
>>>>>>> neglible --> negligible
>>>>>>>
>>>>>>> Combine Terms, SQRT, DIV --> Use different font types (and not
>>>>>>> capital
>>>>>>> letters) for these optimization names
>>>>>>>
>>>>>>> figure 1 --> Figure 1
>>>>>>>
>>>>>>> table 1 --> Table 1
>>>>>>>
>>>>>>> optimal --> optimized ("optimal" is too strong a word)
>>>>>>>
>>>>>>> require some additional --> requires some additional
>>>>>>>
>>>>>>> single precision --> single-precision (also apply to
>>>>>>> double-precision,
>>>>>>> and throughout paper)
>>>>>>>
>>>>>>> severely compute bound --> significantly compute-bound (or say
>>>>>>> "communication to computation ratio is small")
>>>>>>>
>>>>>>>
>>>>>>> Section 4:
>>>>>>>
>>>>>>> their average --> the average
>>>>>>>
>>>>>>> and c) and --> and c)
>>>>>>>
>>>>>>>
>>>>>>> References:
>>>>>>>
>>>>>>> 17) "Pracniques" ---??? Is this the right title?
>>>>>>> ----
>>>>>>>
>>>>>>>
>>>>>>> One suggestion: CCGRID 2010's papers are due on November 13th---
>>>>>>> isn't
>>>>>>> this venue a better target (than PPAM) for this work? It may have
>>>>>>> much more
>>>>>>> visibility in the distributed computing community... just a thought
>>>>>>> to
>>>>>>> consider.
>>>>>>>
>>>>>>> I can make another iteration on the paper (even editing it directly
>>>>>>> if
>>>>>>> given the editing token) on Monday at 12noon-3pm (NY time).
>>>>>>>
>>>>>>> Greetings,
>>>>>>>
>>>>>>> - Carlos.
>>>>>>>
>>>>>>> ---
>>>>>>> Carlos A. Varela <cvarela at cs.rpi.edu>
>>>>>>> Associate Professor
>>>>>>> Worldwide Computing Laboratory
>>>>>>> Department of Computer Science
>>>>>>> Rensselaer Polytechnic Institute
>>>>>>> 110 8th Street, Troy, NY 12180, USA
>>>>>>> http://wcl.cs.rpi.edu/
>>>>>>> Ph: +1 (518) 276-6912 Fax: +1 (518) 276-4033 Office: Lally 308
>>>>>>> ---
>>>>>>>
>>>>>>> On Nov 6, 2009, at 7:03 PM, Andreas Przystawik wrote:
>>>>>>>
>>>>>>>>> Mabye link to the pdf so people can download that easily?
>>>>>>>>
>>>>>>>> That was in the first email I have sent to everyone (or isn't
>>>>>>>> astro at cs.rpi.edu the right mailing list?) just before sending the
>>>>>>>> zip file
>>>>>>>> to you:
>>>>>>>>
>>>>>>>>> The new version is here: http://139.30.40.11/ppam2009.pdf
>>>>>>>>
>>>>>>>> Got it lost somehow? But if I look to my webserver log, at least one
>>>>>>>> person downloaded it already (IP 74.76.53.44) ;)
>>>>>>>>
>>>>>>>> Andreas
>>>>>>>>
>>>>>>>> Von: Andreas Przystawik
>>>>>>>> Gesendet: Freitag, 6. November 2009 21:19
>>>>>>>> An: Travis Desell; astro at cs.rpi.edu; David Anderson
>>>>>>>> Betreff: corrected PPAM paper draft
>>>>>>>> Hello all!
>>>>>>>>
>>>>>>>> Looks like Travis accidentaly compiled the pdf with an early version
>>>>>>>> of
>>>>>>>> the third section. As he said he's quite busy with the last lines of
>>>>>>>> his
>>>>>>>> thesis and I have still 4 weeks left, I've taken the freedom to put
>>>>>>>> the
>>>>>>>> current version in and also correct a few small errors and polished
>>>>>>>> some
>>>>>>>> rough edges I found so far.
>>>>>>>>
>>>>>>>> The new version is here: http://139.30.40.11/ppam2009.pdf
>>>>>>>>
>>>>>>>> My main point of criticism left is that some sentences appear thrice
>>>>>>>> in
>>>>>>>> the text, first in the abstract, then in the introduction and
>>>>>>>> finally in the
>>>>>>>> summary again.
>>>>>>>> ________________
>>>>>>>> Andreas Przystawik
>>>>>>>> Institut für Physik
>>>>>>>> Universität Rostock
>>>>>>>> 18051 Rostock
>>>>>>>>
>>>>>>>> Tel.: +49 381 498 6815
>>>>>>>> Fax: +49 381 498 6802
>>>>>>>> Von: Travis Desell [deselt at cs.rpi.edu]
>>>>>>>> Gesendet: Freitag, 6. November 2009 08:56
>>>>>>>> An: astro at cs.rpi.edu; Andreas Przystawik; David Anderson
>>>>>>>> Betreff: PPAM paper draft
>>>>>>>>
>>>>>>>> I've attached a draft of the PPAM paper, please read and send
>>>>>>>> comments as
>>>>>>>> the deadline is november 9th.
>>>>>>>>
>>>>>>>> You can download it at:
>>>>>>>>
>>>>>>>> http://www.cs.rpi.edu/~deselt/ppam2009.pdf
>>>>>>>>
>>>>>>>> --Travis
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> ----------------------------------------------------------------------------------------------------------
>>>>>>>> Travis Desell
>>>>>>>> <deselt @ cs.rpi.edu>
>>>>>>>> 1-518-867-1054
>>>>>>>> Worldwide Computing Laboratory ( http://wcl.cs.rpi.edu/ )
>>>>>>>> MilkyWay at Home ( http://milkyway.cs.rpi.edu/ )
>>>>>>>> Rensselaer Polytechnic Institute, 110 8th Street, Troy NY 12180, USA
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> ----------------------------------------------------------------------------------------------------------
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>
>
>
> --
> Boleslaw Szymanski
> Claire and Roland Schmitt Distinguished Professor of Computer Science
> RPI, Troy, NY
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: main.pdf
Type: application/pdf
Size: 295224 bytes
Desc: not available
URL: <http://www.cs.rpi.edu/mailman/archives/astro/attachments/20091108/20b4a320/attachment.pdf>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ppam2009.zip
Type: application/zip
Size: 3001381 bytes
Desc: not available
URL: <http://www.cs.rpi.edu/mailman/archives/astro/attachments/20091108/20b4a320/attachment.zip>
More information about the astro
mailing list