[CIG-LONG] cig-long email list
Steve Quenette
steve at vpac.org
Wed May 13 01:19:12 PDT 2009
Hi all,
Fantastic conversation... makes me wish I didn't go on holidays:)
To clarify, and I may have mis-read the thread, the plan is to run GALE
and SNAC for the same mesh size (and then vary processors, etc)... are
you solving the same problem if you do this? (I realise your solving to
the same elapsed time)
Steve.
On Tue, 2009-05-05 at 17:46 -0400, Eunseo Choi wrote:
> Garrett Ito wrote:
> >
> > Hi Eunseo,
> >
> > Thanks--I'm still working on mine. So if I extrapolate out to say
> > 0.1 Myr model time, you'd be at about 1e5yr/(1000*0.1yr)*0.75hrs=750
> > hrs (31 days) on six cores? Does SNAC scale well? Can you run the
> > job on say 50 cores? I'll probably run it mine on about that number
> > of cores.
> Hi, Garrett
>
> No hurry. This is not your duty in the first place. I really appreciate
> your time and effort.
>
> My previous tests showed that SNAC's efficiency for 50 cores is about 0.6.
> So, roughly, 750 hrs*(6/50)/0.6 =150 hrs (6.25 days).
>
> However, the time step size, 0.1 yr, was a highly conservative choice.
> It can be safely increased up to about half the Maxwell time, which
> would be on the order of 10^8 sec for viscosity = ~1.0e+18 Pa.s and
> shear modulus = ~ 10e+10 Pa.
> So, when the time step is 1 yr, the estimated computation time on 50
> cores would be 0.625 day = 15 hr.
>
> Eunse0
>
> >
> > Garrett
> >
> > ----- Original Message -----
> > From: Eunseo Choi <echoi at ldeo.columbia.edu>
> > Date: Tuesday, May 5, 2009 4:09 am
> > Subject: Re: [CIG-LONG] cig-long email list
> > To: Garrett Ito <gito at hawaii.edu>
> > Cc: cig-long at geodynamics.org
> >
> > > Hi, Garrett
> > >
> > > Here are my results.
> > >
> > > - 151x45x6 elements.
> > > - Run for 1000 time steps with an output frequency of 200.
> > > - The time step was constant and 0.1 yr.
> > >
> > > - Run on 6 cores out of 2 x (Intel Xeon QuadCore CPU E5405 at 2.00GHz).
> > > (I don't know the details of the speed of
> > > communication between cores).
> > > - SNAC was compiled with gcc version 4.1.2 20080704 (Red Hat
> > > 4.1.2-44)
> > > and optimized with the -O3 option.
> > >
> > > - Time measured by the 'time' command: 45 min 06 sec.
> > >
> > > Let me know if any critical piece of information is missing.
> > >
> > > Eunseo
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Garrett Ito wrote:
> > > >
> > > > Hi Enseo and Todd,
> > > >
> > > > Yes, if detailed comparisons become necessary
> > > (i.e., if the two
> > > > codes perform within a few factors of eachother) then we
> > > should think
> > > > about comparing on the same platform. At the moment, I'm
> > > having
> > > > trouble running my own test case in 2D with the iterative
> > > solver I'll
> > > > be using for 3D (ugh!). I'll get back to you as
> > > soon as I can.
> > > >
> > > > Garrett
> > > >
> > > > ----- Original Message -----
> > > > From: Eunseo Choi <echoi at ldeo.columbia.edu>
> > > > Date: Friday, May 1, 2009 10:42 am
> > > > Subject: Re: [CIG-LONG] cig-long email list
> > > > To: tehlers at umich.edu
> > > > Cc: cig-long-bounces at geodynamics.org, Garrett Ito
> > > <gito at hawaii.edu>,
> > > > Mark Behn <mbehn at whoi.edu>, cig-long at geodynamics.org
> > > >
> > > > > Hi, Todd
> > > > >
> > > > > Thanks for the suggestion.
> > > > >
> > > > > I've thought about it and think it might be the only proper (not
> > > > > just
> > > > > better) way of comparing two codes.
> > > > > However, I've never succeeded in running Gale so far.
> > > > > Also, maybe the comparison is meaningful to some degree if two
> > > > > systems
> > > > > are not that different?
> > > > >
> > > > > Eunseo
> > > > >
> > > > >
> > > > >
> > > > > Todd Ehlers wrote:
> > > > > > Hi Garrett and Eunseo
> > > > > > If possible you might want to run both on the same hardware
> > > > > and compile both codes with the same compiler with the same
> > > > > optimization flags.
> > > > > > . Cheers,
> > > > > > Todd
> > > > > > Sent via BlackBerry from T-Mobile
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: Eunseo Choi <echoi at ldeo.columbia.edu>
> > > > > >
> > > > > > Date: Fri, 01 May 2009 08:39:51
> > > > > > To: Garrett Ito<gito at hawaii.edu>
> > > > > > Cc: Mark Behn<mbehn at whoi.edu>; <cig-long at geodynamics.org>
> > > > > > Subject: Re: [CIG-LONG] cig-long email list
> > > > > >
> > > > > >
> > > > > > Hi, Garrett
> > > > > >
> > > > > > I agree that our first order goal should be to compare
> > > performance.> > > My model will have 150x45x6 elements and be
> > > made as similar to
> > > > > yours as
> > > > > > possible in terms of initial/boundary conditions.
> > > > > > I'll get back to you when I get results.
> > > > > > Thanks.
> > > > > >
> > > > > > Eunseo
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > Garrett Ito wrote:
> > > > > >
> > > > > >> Hi Enseo,
> > > > > >>
> > > > > >> Regarding your question about viscosity--
> > > > > remember that Gale is a
> > > > > >> purely viscous code so it simulates plasticity with variable,
> > > > > >> strain-dependent viscosity (i.e.,
> > > pseudoplasticity). As
> > > > > for the
> > > > > >> benchmark, at this point I'm most interested in seeing
> > > > > whether the
> > > > > >> two codes are comparable in speed (or shall I say
> > > > > "slowness"). What
> > > > > >> will be most important at this point is that the plasticity
> > > > > law uses
> > > > > >> generates localized zones of strains like faults. Yes,
> > > > > I can produce
> > > > > >> a whole suit of 3D calculations with whatever number of
> > > > > elements in
> > > > > >> the 3rd dimension, plus details on cpu #'s and compute
> > > > > times. I'll
> > > > > >> start one soon with 150x45x6 (i.e., I think Gale will
> > > want at
> > > > > least 4
> > > > > >> elements in the 3rd dimension). Lemme know how your
> > > > > side is coming
> > > > > >> and we can work on details of the comparisons.
> > > > > >>
> > > > > >> Thanks,
> > > > > >>
> > > > > >> Garrett
> > > > > >>
> > > > > >> Eunseo Choi wrote:
> > > > > >>
> > > > > >>> Hi, Garrett
> > > > > >>>
> > > > > >>> First of all, thanks for responding to my comments and
> > > > > suggesting an
> > > > > >>> interesting benchmark.
> > > > > >>>
> > > > > >>> SNAC cannot currently handle Drucker-Prager plasticity, so
> > > > > I'll use
> > > > > >>> Mohr-Coulomb model.
> > > > > >>>
> > > > > >>> A more fundamental issue is that SNAC is hardwired to be 3D,
> > > > > which means
> > > > > >>> it can solve a 2D problem using a thin 3D model with plane
> > > > > strain
> > > > > >>> conditions.
> > > > > >>> A pseudo-2D model like this will obviously raise the
> > > > > numerical cost
> > > > > >>> compared to a true 2D one, rendering the benchmark unfair.
> > > > > >>>
> > > > > >>> So, could you please set up a one-element thick 3D model
> > > > > from your 2D model?
> > > > > >>> Let me know if it's too much work on your side.
> > > > > >>>
> > > > > >>> I also need to know how long in terms of model time you ran
> > > > > this model,
> > > > > >>> if it was run on a single processor, and how many time steps
> > > > > were taken.
> > > > > >>>
> > > > > >>> Finally, here is a non-technical (I guess) question.
> > > > > >>> According to the Gale's manual, the Frank Kamenetskii
> > > > > viscosity is
> > > > > >>> defined as temperature-dependent only.
> > > > > >>> Then, why do we see the viscosity field varying consistently
> > > > > with the
> > > > > >>> strain rate field?
> > > > > >>> Such a correspondence is expected when viscosity is also
> > > > > stress-dependent.
> > > > > >>> Am I misunderstanding something?
> > > > > >>>
> > > > > >>>
> > > > > >>> Best,
> > > > > >>> Eunseo
> > > > > >>>
> > > > > >>>
> > > > > >>>
> > > > > >>> Garrett Ito wrote:
> > > > > >>>
> > > > > >>>
> > > > > >>>> Hi Eunseo,
> > > > > >>>>
> > > > > >>>> Aha! my little comment did catch your eye--
> > > > > good. Your suggestion of
> > > > > >>>> comparing Gale and SNAC is a great one and I'd like to
> > > > > try. Here's
> > > > > >>>> one we could look at. Its a simple case rifting in
> > > > > which extension is
> > > > > >>>> driven by the two side boundaries apart, each at ~12.6
> > > > > km/Myr (so full
> > > > > >>>> spreading rate is 25.2 km/Myr). Free inflow at the
> > > > > base and top free
> > > > > >>>> to move up and down. Frank Kamenetskii
> > > temperature-
> > > > > dependent
> > > > > >>>> viscosity with Drucker Prager yielding. The
> > > > > temperature structure has
> > > > > >>>> T=273K at the surface and 1473K at the base with a linear
> > > > > profile in
> > > > > >>>> between. A box of postfailure strain is imposed at
> > > > > t=0 to control
> > > > > >>>> where the faults initiate. The attached pdf shows
> > > > > Gale's solution in
> > > > > >>>> 2D with 150x45 elements. I also attached Gale's input
> > > > > file so you can
> > > > > >>>> see the rheology parameters. How does this sound?
> > > > > >>>>
> > > > > >>>> Garrett
> > > > > >>>>
> > > > > >>>> ----- Original Message -----
> > > > > >>>> From: Eunseo Choi <echoi at ldeo.columbia.edu>
> > > > > >>>> Date: Wednesday, April 29, 2009 5:34 pm
> > > > > >>>> Subject: Re: [CIG-LONG] cig-long email list
> > > > > >>>> To: cig-long at geodynamics.org
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>
> > > > > >>>>> Hi, Garrett
> > > > > >>>>>
> > > > > >>>>> SNAC is a 3D code like Gale so it is supposed to be
> > > > > >>>>> computationally
> > > > > >>>>> expensive compared to any 2D codes.
> > > > > >>>>> I believe this is not what you meant.
> > > > > >>>>>
> > > > > >>>>> As far as I know, the performance of SNAC and Gale has never
> > > > > >>>>> been
> > > > > >>>>> compared quantitatively yet. Please let me know if
> > > it's done
> > > > > >>>>> even
> > > > > >>>>> qualitatively.
> > > > > >>>>> So, I wonder why you have the impression that SNAC is too
> > > > > >>>>> expensive for
> > > > > >>>>> 3D models.
> > > > > >>>>>
> > > > > >>>>> By the way, SNAC can do Mohr-Coulomb plasticity in 3D and
> > > > > >>>>> doesn't have
> > > > > >>>>> the restriction that plastic flow should always be
> > > > > incompressible.>>>>>
> > > > > >>>>> Eunseo
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>> Garrett Ito wrote:
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>> Hi Mark,
> > > > > >>>>>>
> > > > > >>>>>> Good-- I'm glad to see 3D is starting to
> > > get a
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>> footing in the
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>> community. This is my main reason for using
> > > Gale as I
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>> already do
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>> faulting in 2D with FLAC (and it is my understanding
> > > that SNAC
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>> is too
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>> computationally expensive in 3D ?). Correction...
> > > > > Mohr-
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>> Coulomb has
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>> been removed from Gale because it was unstable in 3D
> > > and is
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>> identical
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>> to Drucker-Prager in 2D.
> > > > > >>>>>>
> > > > > >>>>>> Garrett
> > > > > >>>>>>
> > > > > >>>>>> ----- Original Message -----
> > > > > >>>>>> From: Mark Fleharty <mark.fleharty at gmail.com>
> > > > > >>>>>> Date: Wednesday, April 29, 2009 12:46 pm
> > > > > >>>>>> Subject: Re: [CIG-LONG] cig-long email list
> > > > > >>>>>> To: Garrett Ito <gito at hawaii.edu>
> > > > > >>>>>> Cc: cig-long at geodynamics.org
> > > > > >>>>>>
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>>>> Garrett,
> > > > > >>>>>>>
> > > > > >>>>>>> It is good to hear from someone else who is doing 3D
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>> simulations in
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>>> Gale. I am also doing 3D simulations with Gale.
> > > > > >>>>>>> Welcome aboard.
> > > > > >>>>>>>
> > > > > >>>>>>> I thought that Mohr-Coulomb doesn't work in Gale in 3D.
> > > > > >>>>>>> Was that
> > > > > >>>>>>> something that got fixed?
> > > > > >>>>>>>
> > > > > >>>>>>> Mark
> > > > > >>>>>>>
> > > > > >>>>>>> On Wed, Apr 29, 2009 at 4:27 PM, Garrett Ito
> > > > > >>>>>>> <gito at hawaii.edu> wrote:
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> Dear colleagues,
> > > > > >>>>>>>>
> > > > > >>>>>>>> I would like to introduce myself as a
> > > new to
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>> the cig-long
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>>> list and new
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> GALE user. I would like to encourage us all
> > > to use
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>> the cig-
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>>> long list more
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> often to help spread the knowledge of the CIG codes.
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>> I think
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>>> it would be
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> helpful, for example, we made it a practice of sending
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> individual questions
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> to cig-long along with questions you send to
> > > Walter/Eun-seo
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> about the
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> various coding issues.
> > > > > >>>>>>>>
> > > > > >>>>>>>> Just to start a conversation...I have started using
> > > > > GALE--
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> really in
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> collaboration with Walter Landry--over the last half
> > > > > year with
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> interests in
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> applications of studying faulting and magmatism at
> > > mid-ocean
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> ridges in 3D.
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> A lot of my work to date has been to experimenting
> > > with the
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> Mohr-Coulomb,
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> Drucker-Prager, and StrainWeakening (e.g., damage
> > > laws and
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> healing) and
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> understanding the faulting behavior predicted by Gale.
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> Recently, we have
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> started running jobs in 3D, which I have found to be
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> surprisingly cpu
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> intensive. I view improving the performance
> > > of Gale
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>> for 3D faulting
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>>>> problems as an important goal and on which I will
> > > be working
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> closely with
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>>>> Walter and the Underworld group over the next year.
> > > > > >>>>>>>>
> > > > > >>>>>>>> I look forward to hearing more from you.
> > > > > >>>>>>>>
> > > > > >>>>>>>> Garrett
> > > > > >>>>>>>> --
> > > > > >>>>>>>>
> > > > > >>>>>>>> =====================================
> > > > > >>>>>>>>
> > > > > >>>>>>>> Prof. Garrett Ito
> > > > > >>>>>>>>
> > > > > >>>>>>>> SOEST, Geology & Geophysics
> > > > > >>>>>>>>
> > > > > >>>>>>>> 1680 East-West Rd., POST 810
> > > > > >>>>>>>>
> > > > > >>>>>>>> Univ. of Hawaii
> > > > > >>>>>>>>
> > > > > >>>>>>>> Honolulu, HI 96822 USA
> > > > > >>>>>>>>
> > > > > >>>>>>>>
> > > > > >>>>>>>>
> > > > > >>>>>>>> 808-956-9717
> > > > > >>>>>>>>
> > > > > >>>>>>>> gito at hawaii.edu
> > > > > >>>>>>>>
> > > > > >>>>>>>> www.soest.hawaii.edu/GG/FACULTY/ITO
> > > > > >>>>>>>>
> > > > > >>>>>>>> ======================================
> > > > > >>>>>>>>
> > > > > >>>>>>>> _______________________________________________
> > > > > >>>>>>>> CIG-LONG mailing list
> > > > > >>>>>>>> CIG-LONG at geodynamics.org
> > > > > >>>>>>>> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-long
> > > > > >>>>>>>>
> > > > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > >
> > > >>>>>>>>
> > > > > >>>>>>> --
> > > > > >>>>>>> Mark Fleharty
> > > > > >>>>>>> +1 505 217-2089
> > > > >
> > > >>>>>>>
> > > > >
> > > >>>>>>>
> > > > > >>>>>> ------------------------------------------------------
> > > ----
> > > > > -----
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>> ---------
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>>>> _______________________________________________
> > > > > >>>>>> CIG-LONG mailing list
> > > > > >>>>>> CIG-LONG at geodynamics.org
> > > > > >>>>>> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-long
> > > > > >>>>>>
> > > > > >>>>>>
> > > > >
> > > >>>>>>
> > > > > >>>>> --
> > > > > >>>>> =====================================
> > > > > >>>>> Eunseo Choi
> > > > > >>>>> Post-Doctoral Research Scientist
> > > > > >>>>>
> > > > > >>>>> Lamont-Doherty Earth Observatory
> > > > > >>>>> 303f Oceanography
> > > > > >>>>> P.O. Box 1000
> > > > > >>>>> 61 Rt. 9W
> > > > > >>>>> Palisades, NY 10964-8000
> > > > > >>>>>
> > > > > >>>>> http://www.ldeo.columbia.edu/~echoi
> > > > > >>>>> Phone: 845-365-8813 Fax: 845-365-8156
> > > > > >>>>> =====================================
> > > > > >>>>>
> > > > > >>>>> _______________________________________________
> > > > > >>>>> CIG-LONG mailing list
> > > > > >>>>> CIG-LONG at geodynamics.org
> > > > > >>>>> http://geodynamics.org/cgi-bin/mailman/listinfo/cig-long
> > > > > >>>>>
> > > > > >>>>>
> > > > > >>>
> > > > > >>>
> > > > > >> --
> > > > > >>
> > > > > >> =====================================
> > > > > >>
> > > > > >> Prof. Garrett Ito
> > > > > >>
> > > > > >> SOEST, Geology & Geophysics
> > > > > >>
> > > > > >> 1680 East-West Rd., POST 810
> > > > > >>
> > > > > >> Univ. of Hawaii
> > > > > >>
> > > > > >> Honolulu, HI 96822 USA
> > > > > >>
> > > > > >>
> > > > > >>
> > > > > >> 808-956-9717
> > > > > >>
> > > > > >> gito at hawaii.edu
> > > > > >>
> > > > > >> www.soest.hawaii.edu/GG/FACULTY/ITO
> > > > > >>
> > > > > >> ======================================
> > > > > >>
> > > > > >>
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > > > --
> > > > > =====================================
> > > > > Eunseo Choi
> > > > > Post-Doctoral Research Scientist
> > > > >
> > > > > Lamont-Doherty Earth Observatory
> > > > > 303f Oceanography
> > > > > P.O. Box 1000
> > > > > 61 Rt. 9W
> > > > > Palisades, NY 10964-8000
> > > > >
> > > > > http://www.ldeo.columbia.edu/~echoi
> > > > > Phone: 845-365-8813 Fax: 845-365-8156
> > > > > =====================================
> > > > >
> > >
> > >
> > > --
> > > =====================================
> > > Eunseo Choi
> > > Post-Doctoral Research Scientist
> > >
> > > Lamont-Doherty Earth Observatory
> > > 303f Oceanography
> > > P.O. Box 1000
> > > 61 Rt. 9W
> > > Palisades, NY 10964-8000
> > >
> > > http://www.ldeo.columbia.edu/~echoi
> > > Phone: 845-365-8813 Fax: 845-365-8156
> > > =====================================
> > >
>
>
--
Steve Quenette
VPAC, http://www.vpac.org
Manager - Health & Computational Software Development
Co-Director AuScope Simulation & Modelling Victoria
(m) +61 438 558 275, (w) +61 3 9348 1100, (f) +61 9925 4647
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