From corbett at physik.uzh.ch  Thu Feb  2 07:55:23 2012
From: corbett at physik.uzh.ch (Christine Corbett Moran)
Date: Thu, 2 Feb 2012 14:55:23 +0100
Subject: [Users] Cactus/AMR Zeus
Message-ID: <CANLMs=jbq5+7LExdXAJB3k27RmMNrEqVhzdMqh0jHYj5t4Q7LQ@mail.gmail.com>

Hi All,

I was wondering the status of AMRZeus; has anyone on this list used this
set of thorns? I've been considering developing my own non-relativistic
hydro code based on Cactus but would like to see what has been done in this
area, and if others have continued work. I had a brief discussion with the
original developer PS Li, who told me it was used on test problems circa
2002, had problems scaling due to the underlying AMR (Grace), and he ceased
development and interest in the project. He suggested I contact the Cactus
development team for updates.

I'd like to
1-get started with Cactus/AMRZeus (thorn list, cvs problems, building
issues)
2-run a test problem (sample configuration)
3-talk with anyone else who has worked with these thorns (advice, state of
development)

could anyone who could help with these tasks get in touch?

Thanks in advance,
Christine
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://cactuscode.org/pipermail/users/attachments/20120202/94862ae4/attachment.html 

From schnetter at cct.lsu.edu  Thu Feb  2 09:14:06 2012
From: schnetter at cct.lsu.edu (Erik Schnetter)
Date: Thu, 2 Feb 2012 10:14:06 -0500
Subject: [Users] Cactus/AMR Zeus
In-Reply-To: <CANLMs=jbq5+7LExdXAJB3k27RmMNrEqVhzdMqh0jHYj5t4Q7LQ@mail.gmail.com>
References: <CANLMs=jbq5+7LExdXAJB3k27RmMNrEqVhzdMqh0jHYj5t4Q7LQ@mail.gmail.com>
Message-ID: <CADKQjje5jekVJE0MxnxuTbpj3Tf71mjm-sMqJu=-Q9bk-CdWCw@mail.gmail.com>

On Thu, Feb 2, 2012 at 8:55 AM, Christine Corbett Moran
<corbett at physik.uzh.ch> wrote:
> Hi All,
>
> I was wondering the status of AMRZeus; has anyone on this list used this set
> of thorns? I've been considering developing my own non-relativistic hydro
> code based on Cactus but would like to see what has been done in this area,
> and if others have continued work. I had a brief discussion with the
> original developer PS Li, who told me it was used on test problems circa
> 2002, had problems scaling due to the underlying AMR (Grace), and he ceased
> development and interest in the project. He suggested I contact the Cactus
> development team for updates.
>
> I'd like to
> 1-get started with Cactus/AMRZeus (thorn list, cvs problems, building
> issues)
> 2-run a test problem (sample configuration)
> 3-talk with anyone else who has worked with these thorns (advice, state of
> development)
>
> could anyone who could help with these tasks get in touch?

Christine

Pakshing Li and I worked on Cactus/AMRZeus together. Yes, this code
worked on test problems, but there were problems with the Cactus/GrACE
connection. Since then, there is a new AMR driver in Cactus (called
Carpet), independent of GrACE, and we use it for relativistic
hydrodynamics.

I don't think it makes sense to try to run Cactus/ARMZeus as-is; the
Cactus AMR interface changed since then, and probably needs updating.
I also would not try to use GrACE, and would use Carpet instead, as
does most of the Cactus community.

The AMRZeus code is hosted in a cvs repository AMRZeus at
cvs.cactuscode.org:/arrangements. I just checked -- the command "cvs
-d :pserver:schnetter at cvs.cactuscode.org:/arrangements checkout
AMRZeus" still works for me. However, I would not use this cvs
repository, I would use svn instead. I'll send you a tarball privately
to get you started more quickly.

Apart from brushing up code, maybe using a newer version of Zeus,
etc., the largest obstacle you are likely to encounter is the choice
and implementation of the refinement criterion. Historically, Cactus
relativity simulations have used feature-based refinement criteria,
i.e. have located e.g. an apparent horizon, and have selected a grid
structure from this information. This has only recently been extended
to a more generic "Paramesh-style" refinement, which starts from a
grid function specifying for each grid point whether it requires
refinement or not. This is still under development, for example there
are issues with periodic boundaries.

This is a high-level overview over AMRZeus and AMR in Cactus. Would
you be interested in a Skype conversation to discuss some of the
details? I'm located in the Eastern time zone in Canada.

-erik

-- 
Erik Schnetter <schnetter at cct.lsu.edu>?? http://www.cct.lsu.edu/~eschnett/

From jtao at cct.lsu.edu  Thu Feb  2 09:46:33 2012
From: jtao at cct.lsu.edu (Jian Tao)
Date: Thu, 02 Feb 2012 09:46:33 -0600
Subject: [Users] Cactus/AMR Zeus
In-Reply-To: <CANLMs=jbq5+7LExdXAJB3k27RmMNrEqVhzdMqh0jHYj5t4Q7LQ@mail.gmail.com>
References: <CANLMs=jbq5+7LExdXAJB3k27RmMNrEqVhzdMqh0jHYj5t4Q7LQ@mail.gmail.com>
Message-ID: <4F2AAFD9.3070500@cct.lsu.edu>

Hi Christine,

The CactusZeus code has not been updated since 2002 or 2003.
http://wugrav.wustl.edu/ASC/Developers/zeus/zeusmain.html

Let me try to reach Sai Iyer, who is probably still in this list,
to give you access to the source code.

PAGH, the Cactus driver built on GrACE, hasn't been developed
and maintained for a long while either. I am not so sure about the
status of GrACE myself though.

As an alternative to PAGH (for GrACE), you may use
Carpet (http://carpetcode.org/) for CactusZeus. I was not involved in
the development of CactusZeus, but am happy to help you to get
started with the code.

Regards,
Jian

On 02/02/2012 07:55 AM, Christine Corbett Moran wrote:
> Hi All,
>
> I was wondering the status of AMRZeus; has anyone on this list used this
> set of thorns? I've been considering developing my own non-relativistic
> hydro code based on Cactus but would like to see what has been done in
> this area, and if others have continued work. I had a brief discussion
> with the original developer PS Li, who told me it was used on test
> problems circa 2002, had problems scaling due to the underlying AMR
> (Grace), and he ceased development and interest in the project. He
> suggested I contact the Cactus development team for updates.
>
> I'd like to
> 1-get started with Cactus/AMRZeus (thorn list, cvs problems, building
> issues)
> 2-run a test problem (sample configuration)
> 3-talk with anyone else who has worked with these thorns (advice, state
> of development)
>
> could anyone who could help with these tasks get in touch?
>
> Thanks in advance,
> Christine
>
>
>
> _______________________________________________
> Users mailing list
> Users at cactuscode.org
> http://cactuscode.org/mailman/listinfo/users


From corbett at physik.uzh.ch  Thu Feb  2 09:57:59 2012
From: corbett at physik.uzh.ch (Christine Corbett Moran)
Date: Thu, 2 Feb 2012 16:57:59 +0100
Subject: [Users] Cactus/AMR Zeus
In-Reply-To: <4F2AB10E.1090005@cct.lsu.edu>
References: <4F2AB10E.1090005@cct.lsu.edu>
Message-ID: <CANLMs=hPn0J8iQqBApqTXx5dez4hO1qZOnLhPn5ZwTgQ7yOrug@mail.gmail.com>

Ah, sorry I should be subscribed but your email hasn't reached me through
that channel. Thanks for your reply?Erik Schnetter helped with the
development and has offered to have a brief Skype with my as well as
already getting me the "latest" version of the code from 2002.  Input
from Sai Iyer would also be much appreciated.

Yes-to all I assume the idea would be to build on Carpet these days rather
than bothering with PAGH/Grace.

Christine

On Thu, Feb 2, 2012 at 4:51 PM, Jian Tao <jtao at cct.lsu.edu> wrote:

> Hi Christine,
>
> I just realized that you might not subscribe to the list.
> I will send an email to Sai and cc you today.
>
> Regards,
> Jian
>
>
> -------- Original Message --------
> Subject: Re: [Users] Cactus/AMR Zeus
> Date: Thu, 02 Feb 2012 09:46:33 -0600
> From: Jian Tao <jtao at cct.lsu.edu>
> To: users at cactuscode.org
>
> Hi Christine,
>
> The CactusZeus code has not been updated since 2002 or 2003.
> http://wugrav.wustl.edu/ASC/**Developers/zeus/zeusmain.html<http://wugrav.wustl.edu/ASC/Developers/zeus/zeusmain.html>
>
> Let me try to reach Sai Iyer, who is probably still in this list,
> to give you access to the source code.
>
> PAGH, the Cactus driver built on GrACE, hasn't been developed
> and maintained for a long while either. I am not so sure about the
> status of GrACE myself though.
>
> As an alternative to PAGH (for GrACE), you may use
> Carpet (http://carpetcode.org/) for CactusZeus. I was not involved in
> the development of CactusZeus, but am happy to help you to get
> started with the code.
>
> Regards,
> Jian
>
> On 02/02/2012 07:55 AM, Christine Corbett Moran wrote:
>
>> Hi All,
>>
>> I was wondering the status of AMRZeus; has anyone on this list used this
>> set of thorns? I've been considering developing my own non-relativistic
>> hydro code based on Cactus but would like to see what has been done in
>> this area, and if others have continued work. I had a brief discussion
>> with the original developer PS Li, who told me it was used on test
>> problems circa 2002, had problems scaling due to the underlying AMR
>> (Grace), and he ceased development and interest in the project. He
>> suggested I contact the Cactus development team for updates.
>>
>> I'd like to
>> 1-get started with Cactus/AMRZeus (thorn list, cvs problems, building
>> issues)
>> 2-run a test problem (sample configuration)
>> 3-talk with anyone else who has worked with these thorns (advice, state
>> of development)
>>
>> could anyone who could help with these tasks get in touch?
>>
>> Thanks in advance,
>> Christine
>>
>>
>>
>> ______________________________**_________________
>> Users mailing list
>> Users at cactuscode.org
>> http://cactuscode.org/mailman/**listinfo/users<http://cactuscode.org/mailman/listinfo/users>
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://cactuscode.org/pipermail/users/attachments/20120202/a3598420/attachment.html 

From corbett at physik.uzh.ch  Thu Feb  2 11:40:32 2012
From: corbett at physik.uzh.ch (Christine Corbett Moran)
Date: Thu, 2 Feb 2012 18:40:32 +0100
Subject: [Users] Cactus/AMR Zeus
In-Reply-To: <4F2AAFD9.3070500@cct.lsu.edu>
References: <CANLMs=jbq5+7LExdXAJB3k27RmMNrEqVhzdMqh0jHYj5t4Q7LQ@mail.gmail.com>
	<4F2AAFD9.3070500@cct.lsu.edu>
Message-ID: <CANLMs=hgCmpXwnVuoLbjUi18BsjY0W3nwyNAvvXgkwKPF7qTXw@mail.gmail.com>

Thanks all! I think I have help/overview on several fronts now and will be
in touch with further questions at a later date?after I've done some
legwork on my end.

Best,
Christine

On Thu, Feb 2, 2012 at 4:46 PM, Jian Tao <jtao at cct.lsu.edu> wrote:

> Hi Christine,
>
> The CactusZeus code has not been updated since 2002 or 2003.
> http://wugrav.wustl.edu/ASC/Developers/zeus/zeusmain.html
>
> Let me try to reach Sai Iyer, who is probably still in this list,
> to give you access to the source code.
>
> PAGH, the Cactus driver built on GrACE, hasn't been developed
> and maintained for a long while either. I am not so sure about the
> status of GrACE myself though.
>
> As an alternative to PAGH (for GrACE), you may use
> Carpet (http://carpetcode.org/) for CactusZeus. I was not involved in
> the development of CactusZeus, but am happy to help you to get
> started with the code.
>
> Regards,
> Jian
>
> On 02/02/2012 07:55 AM, Christine Corbett Moran wrote:
> > Hi All,
> >
> > I was wondering the status of AMRZeus; has anyone on this list used this
> > set of thorns? I've been considering developing my own non-relativistic
> > hydro code based on Cactus but would like to see what has been done in
> > this area, and if others have continued work. I had a brief discussion
> > with the original developer PS Li, who told me it was used on test
> > problems circa 2002, had problems scaling due to the underlying AMR
> > (Grace), and he ceased development and interest in the project. He
> > suggested I contact the Cactus development team for updates.
> >
> > I'd like to
> > 1-get started with Cactus/AMRZeus (thorn list, cvs problems, building
> > issues)
> > 2-run a test problem (sample configuration)
> > 3-talk with anyone else who has worked with these thorns (advice, state
> > of development)
> >
> > could anyone who could help with these tasks get in touch?
> >
> > Thanks in advance,
> > Christine
> >
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at cactuscode.org
> > http://cactuscode.org/mailman/listinfo/users
>
> _______________________________________________
> Users mailing list
> Users at cactuscode.org
> http://cactuscode.org/mailman/listinfo/users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://cactuscode.org/pipermail/users/attachments/20120202/a6f0b84e/attachment.html 

From knarf at cct.lsu.edu  Sun Feb  5 18:00:04 2012
From: knarf at cct.lsu.edu (knarf at cct.lsu.edu)
Date: Sun,  5 Feb 2012 18:00:04 -0600 (CST)
Subject: [Users] Reminder: Cactus support chat
Message-ID: <20120206000004.8664769CB02@cactus.cct.lsu.edu>

Hi

You are cordially invited to join our weekly Cactus support chat on
Mondays from 9am to 10am CDT/CST (central US timezone).

The chat uses the EVO [1] collaboration software, which requires Java.
It also requires a valid login, but registration is free at
   https://evo.caltech.edu/evoGate/Profile/register.jsp

The EVO meeting URL is
   http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eseieIvnveaiaDI8a8Is
with the meeting title
   Cactus support chat

In addition to the simple chat, EVO also offers audio/video conference
support as well as a view of remote desktops, which can make resolving
problems much easier in some cases. However, the typical support chat
doesn't make use of these additions, so it is ok to join e.g. without
sound or video support.

The Cactus team

[1] http://evo.caltech.edu/evoGate/



From knarf at cct.lsu.edu  Mon Feb  6 00:54:51 2012
From: knarf at cct.lsu.edu (Frank Loeffler)
Date: Mon, 6 Feb 2012 00:54:51 -0600
Subject: [Users] Announcement: Einstein Toolkit New Users Workshop
Message-ID: <20120206065451.GE3982@topf.wg>

The Einstein Toolkit (http://einsteintoolkit.org) will host its spring
workshop 2012 following the April APS meeting in Atlanta, GA, from
Tuesday, April 3rd, 4pm to Friday April 6th, noon.

This workshop is targeted at new and potential new users of the
relativity infrastructure. It will provide a general introductions into
numerical relativity (although some previous knowledge would be
beneficial) and in code development within large collaborations.
Hands-on sessions will help to familiarize attendees with the Einstein
Toolkit. Participants are asked to bring their own laptops. We would
like to invite especially students from physics and computer science to
participate.

The number of attendees is limited, and while registration is free, it
is required. We anticipate to be able to support a small number of
participants financially, by covering parts/all of their travel, hotel
and meal cost. Preference will be given to students.

In order register, write an email to workshop at einsteintoolkit.org and
specify:

    * your name, affiliation and title
    * your estimated arrival and departure time/date
    * whether you apply for support (and if so, state if you are
      undergraduate / graduate student / postdoc)
    * your special needs 

Detailed workshop information can be found at
https://docs.einsteintoolkit.org/et-docs/ET_Workshop_Spring_2012.

The Einstein Toolkit Consortium. 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
Url : http://cactuscode.org/pipermail/users/attachments/20120206/6cb544fd/attachment.bin 

From roland.haas at physics.gatech.edu  Mon Feb  6 10:41:48 2012
From: roland.haas at physics.gatech.edu (Roland Haas)
Date: Mon, 06 Feb 2012 08:41:48 -0800
Subject: [Users] Cactus/AMR Zeus
In-Reply-To: <CANLMs=hgCmpXwnVuoLbjUi18BsjY0W3nwyNAvvXgkwKPF7qTXw@mail.gmail.com>
References: <CANLMs=jbq5+7LExdXAJB3k27RmMNrEqVhzdMqh0jHYj5t4Q7LQ@mail.gmail.com>	<4F2AAFD9.3070500@cct.lsu.edu>
	<CANLMs=hgCmpXwnVuoLbjUi18BsjY0W3nwyNAvvXgkwKPF7qTXw@mail.gmail.com>
Message-ID: <4F3002CC.2010906@mail.gatech.edu>

Hello all,

> Thanks all! I think I have help/overview on several fronts now and will be
> in touch with further questions at a later date?after I've done some
> legwork on my end.
During today's ET call the discussion at the last workshop was
mentioned. The summary for that discussion can be found here:
https://docs.einsteintoolkit.org/et-docs/Generic_elliptic_solver

Yours,
Roland

-- 
My email is as private as my paper mail. I therefore support encrypting
and signing email messages. Get my PGP key from http://keys.gnupg.net.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 262 bytes
Desc: OpenPGP digital signature
Url : http://cactuscode.org/pipermail/users/attachments/20120206/5e14d793/attachment.bin 

From knarf at cct.lsu.edu  Sun Feb 12 18:00:02 2012
From: knarf at cct.lsu.edu (knarf at cct.lsu.edu)
Date: Sun, 12 Feb 2012 18:00:02 -0600 (CST)
Subject: [Users] Reminder: Cactus support chat
Message-ID: <20120213000002.3BDD368CB86@cactus.cct.lsu.edu>

Hi

You are cordially invited to join our weekly Cactus support chat on
Mondays from 9am to 10am CDT/CST (central US timezone).

The chat uses the EVO [1] collaboration software, which requires Java.
It also requires a valid login, but registration is free at
   https://evo.caltech.edu/evoGate/Profile/register.jsp

The EVO meeting URL is
   http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eseieIvnveaiaDI8a8Is
with the meeting title
   Cactus support chat

In addition to the simple chat, EVO also offers audio/video conference
support as well as a view of remote desktops, which can make resolving
problems much easier in some cases. However, the typical support chat
doesn't make use of these additions, so it is ok to join e.g. without
sound or video support.

The Cactus team

[1] http://evo.caltech.edu/evoGate/



From tschoene at stud.uni-frankfurt.de  Wed Feb 15 03:47:11 2012
From: tschoene at stud.uni-frankfurt.de (Thomas =?iso-8859-1?b?U2No9m5lbmJhY2g=?=)
Date: Wed, 15 Feb 2012 10:47:11 +0100
Subject: [Users] Jobs won't run
Message-ID: <20120215104711.1673729avzmmbi8v@webmail.server.uni-frankfurt.de>

Dear all,

I've already run some test-jobs last year and wanted to continue that  
now. Unfortunately I don't know why my jobs won't run properly. I'm  
following the ET-Tutorial. At first I thought the problem was that my  
defs.local.ini still contained the allocation loni_cactus06 from last  
year. But changing that (with a complete rebuild) did not help.
Here's what I do:

----------------------------------------
[ettest17 at qb4 Cactus]$ ./simfactory/bin/sim submit static_tov  
--parfile=par/static_tov.par --procs=32 --walltime=8:0:0
Parameter file: /home/ettest17/Cactus/par/static_tov.par
Skeleton Created
Job directory: "/scratch/ettest17/simulations/static_tov"
No testsuite option found
Executable: "/home/ettest17/Cactus/exe/cactus_sim"
Option list:  
"/scratch/ettest17/simulations/static_tov/SIMFACTORY/cfg/OptionList"
Submit script:  
"/scratch/ettest17/simulations/static_tov/SIMFACTORY/run/SubmitScript"
Run script:  
"/scratch/ettest17/simulations/static_tov/SIMFACTORY/run/RunScript"
Parameter file:  
"/scratch/ettest17/simulations/static_tov/SIMFACTORY/par/static_tov.par"
Assigned restart id: 0
Executing submit command: qsub  
/scratch/ettest17/simulations/static_tov/output-0000/SIMFACTORY/SubmitScript
[139158 refs]
[ettest17 at qb4 Cactus]$ ./simfactory/bin/sim list-simulations
    static_tov              [ACTIVE (FINISHED), restart 0000, job id -1]
[139667 refs]
[ettest17 at qb4 Cactus]$
----------------------------------------
The jobs are instantly finished without any output data.



The content of my defs.local.ini :
----------------------------------------
# Defaults for all machines
[default]
user            = ettest17
email           = tschoene at stud.uni-frankfurt.de
allocation      = loni_cactus07
thornlist       = manifest/einsteintoolkit.th
----------------------------------------

There is some data created in the output directories like the  
properties.ini in
/scratch/ettest17/simulations/static-tov/SIMFACTORY :
----------------------------------------
[properties]
machine         = queenbee
simulationid    =  
simulation-static_tov-queenbee-qb3.loni.org-ettest17-2012.02.15-03.13.38-6914
sourcedir       = /home/ettest17/Cactus
configuration   = sim
configid        = config-sim-qb4.loni.org-home-ettest17-Cactus
buildid         = build-sim-qb4.loni.org-ettest17-2012.02.15-09.08.20-4630
testsuite       = False
executable      =  
/scratch/ettest17/simulations/static_tov/SIMFACTORY/exe/cactus_sim
optionlist      =  
/scratch/ettest17/simulations/static_tov/SIMFACTORY/cfg/OptionList
submitscript    =  
/scratch/ettest17/simulations/static_tov/SIMFACTORY/run/SubmitScript
runscript       =  
/scratch/ettest17/simulations/static_tov/SIMFACTORY/run/RunScript
parfile         =  
/scratch/ettest17/simulations/static_tov/SIMFACTORY/par/static_tov.par
----------------------------------------

Thanks in advance

Best regards
Thomas



From kliu14 at tigers.lsu.edu  Wed Feb 15 10:04:38 2012
From: kliu14 at tigers.lsu.edu (Ke LIU)
Date: Wed, 15 Feb 2012 10:04:38 -0600
Subject: [Users] CCTK_DELTA_SPACE
Message-ID: <CAABLp4Xns-KZLDpVzSLTHxerT9NNi=XXoeJSQpE1HshCrn=Lig@mail.gmail.com>

Hi all,

I just know there is a cactus macro CCTK_DELTA_SPACE, which gives grid
spacing in each direction. But when I try to use CCTK_DELTA_SPACE(0) and
CCTK_DELTA_SPACE(1) in my code to get resolution in x and y direction, i.e.
delta_x = (max_x - min_x) / ncells_x, delta_y = (max_y - min_y) / ncells_y,
it seems not to give the right one. I just wonder is this the right way to
get delta_x and delta_y?

If we have refined mesh using CarpetRegird2, does  CCTK_DELTA_SPACE return
the spacing on base grid, or that on the finest grid?

Best wishes,
LIU, Ke
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://cactuscode.org/pipermail/users/attachments/20120215/19bffc3e/attachment.html 

From knarf at cct.lsu.edu  Wed Feb 15 12:16:33 2012
From: knarf at cct.lsu.edu (Frank Loeffler)
Date: Wed, 15 Feb 2012 12:16:33 -0600
Subject: [Users] Jobs won't run
In-Reply-To: <20120215104711.1673729avzmmbi8v@webmail.server.uni-frankfurt.de>
References: <20120215104711.1673729avzmmbi8v@webmail.server.uni-frankfurt.de>
Message-ID: <20120215181633.GA4386@topf.wg>

Hi,

On Wed, Feb 15, 2012 at 10:47:11AM +0100, Thomas Sch?nenbach wrote:
> I've already run some test-jobs last year and wanted to continue that  
> now. Unfortunately I don't know why my jobs won't run properly.

The accounting system on Queen Bee currently has problems, which makes
it think that the allocation you are using is used up. We hope this can
be resolved quickly, but other than reporting (which we did) we cannot
do much about it right now.

We are sorry for the inconvenience, Frank Loeffler

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
Url : http://cactuscode.org/pipermail/users/attachments/20120215/4749fc9d/attachment.bin 

From schnetter at cct.lsu.edu  Fri Feb 17 08:41:39 2012
From: schnetter at cct.lsu.edu (Erik Schnetter)
Date: Fri, 17 Feb 2012 09:41:39 -0500
Subject: [Users] CCTK_DELTA_SPACE
In-Reply-To: <CAABLp4Xns-KZLDpVzSLTHxerT9NNi=XXoeJSQpE1HshCrn=Lig@mail.gmail.com>
References: <CAABLp4Xns-KZLDpVzSLTHxerT9NNi=XXoeJSQpE1HshCrn=Lig@mail.gmail.com>
Message-ID: <CADKQjjc+pLt0bGXmVLRkucwn94WSNvbQ=hg_KLHD8zncfpK2Jw@mail.gmail.com>

Ke

This macro is the correct way of obtaining this information. If the
information is slightly off, then it is likely that your domain has a
slightly wrong size; it is easy to make off-by-one errors in a
parameter file. If you output some data along the x axis, you can look
at the coordinate information in there to see where Cactus placed your
grid points, and whether this corresponds to what you expected.

-erik

On Wed, Feb 15, 2012 at 11:04 AM, Ke LIU <kliu14 at tigers.lsu.edu> wrote:
> Hi all,
>
> I just know there is a cactus macro CCTK_DELTA_SPACE, which gives grid
> spacing in each direction. But when I try to use CCTK_DELTA_SPACE(0) and
> CCTK_DELTA_SPACE(1) in my code to get resolution in x and y direction, i.e.
> delta_x = (max_x - min_x) / ncells_x, delta_y = (max_y - min_y) / ncells_y,
> it seems not to give the?right one.?I just?wonder is this the right way to
> get delta_x and?delta_y?
>
> If we have refined mesh?using CarpetRegird2, does??CCTK_DELTA_SPACE return
> the spacing on base grid, or that on the finest grid?
>
> Best wishes,
> LIU, Ke
>
>
>
> _______________________________________________
> Users mailing list
> Users at cactuscode.org
> http://cactuscode.org/mailman/listinfo/users
>



-- 
Erik Schnetter <schnetter at cct.lsu.edu>?? http://www.cct.lsu.edu/~eschnett/

From knarf at cct.lsu.edu  Sun Feb 19 18:00:02 2012
From: knarf at cct.lsu.edu (knarf at cct.lsu.edu)
Date: Sun, 19 Feb 2012 18:00:02 -0600 (CST)
Subject: [Users] Reminder: Cactus support chat
Message-ID: <20120220000002.4428277C413@cactus.cct.lsu.edu>

Hi

You are cordially invited to join our weekly Cactus support chat on
Mondays from 9am to 10am CDT/CST (central US timezone).

The chat uses the EVO [1] collaboration software, which requires Java.
It also requires a valid login, but registration is free at
   https://evo.caltech.edu/evoGate/Profile/register.jsp

The EVO meeting URL is
   http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eseieIvnveaiaDI8a8Is
with the meeting title
   Cactus support chat

In addition to the simple chat, EVO also offers audio/video conference
support as well as a view of remote desktops, which can make resolving
problems much easier in some cases. However, the typical support chat
doesn't make use of these additions, so it is ok to join e.g. without
sound or video support.

The Cactus team

[1] http://evo.caltech.edu/evoGate/



From alexander.beck-ratzka at aei.mpg.de  Mon Feb 20 09:20:46 2012
From: alexander.beck-ratzka at aei.mpg.de (Alexander Beck-Ratzka)
Date: Mon, 20 Feb 2012 16:20:46 +0100
Subject: [Users] Reminder: Cactus support chat
In-Reply-To: <20120220000002.4428277C413@cactus.cct.lsu.edu>
References: <20120220000002.4428277C413@cactus.cct.lsu.edu>
Message-ID: <3602462.mf8lpx1Chq@nb403276-w510>

Hi Folks,

I have problems to access the EVO page, but I am afraid this in only my 
problem. I have recently updated my laptop to a new release, and it seems this 
is causing some problems. Hope I can fix this today...

Best wishes

Alexander


On Sunday 19 February 2012 18:00:02 knarf at cct.lsu.edu wrote:
> Hi
> 
> You are cordially invited to join our weekly Cactus support chat on
> Mondays from 9am to 10am CDT/CST (central US timezone).
> 
> The chat uses the EVO [1] collaboration software, which requires Java.
> It also requires a valid login, but registration is free at
>    https://evo.caltech.edu/evoGate/Profile/register.jsp
> 
> The EVO meeting URL is
>    http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eseieIvnveaiaDI8a8Is
> with the meeting title
>    Cactus support chat
> 
> In addition to the simple chat, EVO also offers audio/video conference
> support as well as a view of remote desktops, which can make resolving
> problems much easier in some cases. However, the typical support chat
> doesn't make use of these additions, so it is ok to join e.g. without
> sound or video support.
> 
> The Cactus team
> 
> [1] http://evo.caltech.edu/evoGate/
> 
> 
> _______________________________________________
> Users mailing list
> Users at cactuscode.org
> http://cactuscode.org/mailman/listinfo/users


From knarf at cct.lsu.edu  Sun Feb 26 18:00:02 2012
From: knarf at cct.lsu.edu (knarf at cct.lsu.edu)
Date: Sun, 26 Feb 2012 18:00:02 -0600 (CST)
Subject: [Users] Cactus support chat
Message-ID: <20120227000002.4961377C4C2@cactus.cct.lsu.edu>

Hi

You are cordially invited to join our weekly Cactus support chat.
Everybody is free to join, to ask questions about Cactus, the Einstein
Toolkit and related software, or to discuss problems and suggested changes.

We meet weekly on Mondays from 9am to 10am CDT/CST (central US timezone).

The Cactus team

-----------------------------------------------------------------------

Instructions on how to join:

The chat uses the EVO [1] collaboration software, which requires Java.
It also requires a valid login, but registration is free at
   https://evo.caltech.edu/evoGate/Profile/register.jsp

The EVO meeting URL is
   http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eseieIvnveaiaDI8a8Is
with the meeting title
   Cactus support chat

In addition to the simple chat, EVO also offers audio/video conference
support as well as a view of remote desktops, which can make resolving
problems much easier in some cases. However, the typical support chat
doesn't make use of these additions, so it is ok to join e.g. without
sound or video support.

[1] http://evo.caltech.edu/evoGate/