On 6 Apr 2012, at 07:44, Christian D. Ott wrote:
If you now invest a bit of your time to merge your changes into the main development tree, we will be happy to maintain your changes and keep them in sync with upgrades of carpet. This will allow you to immediately profit from upcoming performance/infrastructure improvements and you will be able to reach your research goals in shorter time. I think, this would be a very wise investment of your time.
Hi guys,
Even if you don't have time to actually do the merge (which might be nontrivial), it would be extremely helpful to provide the *changes* you have made, rather than a dump of the code. Presumably you developed this code based on a specific version of Carpet from the repository. If you could tell us which one (i.e. a git hash or a Mercurial changeset), then at least we can import this version as a patch against that version, and we can see exactly what has changed. Alternatively, you could give us the .hg or .git directory from your working copy and include it in the tarball, as this will contain this information as well. This isolates your features from what was there already, and it makes it feasible to merge it later.
Best wishes,
- Christian Ott
On Thu, Apr 05, 2012 at 03:07:56PM -0500, Zach Etienne wrote:
Dear Frank,
Thank you for your email. We are happy to continue sharing our new algorithms and ideas with the ET community whenever possible. But we are only funded to work on applications outlined in our research grants, and we are obliged to devote all our time and resources to this effort.
Given how strong and widespread the ET community has become, we absolutely cannot discount the possibility of joining ET in a more formal way in the future. However, we currently lack the manpower that would be required to complete our funded objectives and at the same time merge, maintain, and support the software we recently released publicly.
We hope you understand our difficult situation.
Sincerely,
The Illinois relativity group
P.S.
Regarding our current contribution, here is where the relevant modifications are located (in CarpetLib/src): restrict_3d_stagger???.cc prolongate_3d_stagger???.cc Mathematica_Scripts_used_to_**generate_staggered_interp_**stencils/* operator_prototypes.hh operators.hh
2012/4/2 Frank Loeffler knarf@cct.lsu.edu
Dear Illinois group,
Our branch of Carpet, which includes the prolongation/restriction operators we developed for staggered gridfunctions, has been made publicly available.
Congratulation to this step!
Though we do not intend to merge these changes into the Carpet mainline, you are more than welcome to do so.
While I would welcome if _you_ would merge them because obviously you know best what actually went into these changes, I can understand that this means work, or in other words time. It is difficult for us, however, to judge whether it is worth that time, because it is difficult to know which changes actually went into the new branch when only looking at the tar-ball.
In order to be able to judge about that we would need to know which version of Carpet was used for this branch, or ideally we could need the changes as 'patch' against a known version. Do you have this information?
Would you be able to help with a possible merge, in case of questions and would you consider maintaining that new portion afterwards? Are you interested in 'officially' joining the Einstein Toolkit [1]?
Thank you, Frank Loeffler
[1] http://einsteintoolkit.org/about/members/
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