Hi everyone,
We're proud to announce the third ALPHA release of yt 3.0. yt has recently transitioned to a time-based release plan ( https://ytep.readthedocs.org/en/latest/YTEPs/YTEP-0008.html ) and this is the third scheduled alpha of 3.0, although we've grossly missed the estimated date of July 15. No date for a "final" release has yet been set, but there will likely be several more alphas before that time.
The yt 2.5 codebase, and further updates in the 2.x series, will be supported for a considerable amount of time and you do not need to upgrade.
= yt 3.0?! =
yt 3.0 represents a new direction forward for yt: getting rid of all the underlying assumptions that data needs to be sectioned off into nice little grid patches. This includes supporting Octree codes natively (NMSU-ART and RAMSES), eventual support for SPH codes, and even opaque data structures where the data is extremely large (ARTIO). We're even planning support for natively handling cylindrical and spherical coordinates.
More: http://blog.yt-project.org/post/WhatsUpWith30.html
However, this is an alpha release. Not all of the existing codes have been ported to 3.0.
Additionally, this release benefits from the technical and non-technical contributions from many new people. yt is developed in the context of a community of contributors, and with the push toward a new architecture, we aim to expand that community considerably. In particular, this release has considerably benefited from contributions from many new individuals.
= Getting It! =
To try out yt 3.0, you can now pull from the main yt repository, update to the yt-3.0 branch, and rebuild your extensions. Or, if you would like to create a new, safely sectioned off environment, simply re-run the normal "development" install script after changing the variable BRANCH to "yt-3.0".
If you would like to try out yt 3.0 and are having trouble, please write to the yt-users mailing list for assistance.
The yt 3.0 install script may also work, which can be obtained by executing these commands:
wget http://hg.yt-project.org/yt/raw/yt-3.0/doc/install_script.sh bash install_script.sh
= What's New? =
A demo notebook demonstrating much new functionality, and including the full release notes, can be found here:
http://hub.yt-project.org/nb/88u14f
The bullet-pointed release notes can be found at the end of this email, as well. The main improvements include considerable memory usage reduction, ARTIO spatial data indexing support, better particle support, an overhaul of the selection methods for data objects, and a mechanism for on-the-fly definitions of particle types based on boolean filters.
Additionally, this release was used in the production of the AGORA project flagship paper. The analysis script used there can be seen at this short URL:
and the paper can be found here: http://arxiv.org/abs/1308.2669
= Reporting Problems =
If you test out yt 3.0 we want to hear if it DID or DID NOT work! Feedback is crucial at this time. yt-users and yt-dev are both good forums for discussion, asking questions, and reporting problems. Lots of things have changed on the backend, but we have attempted to minimize the user-facing changes.
To report a bug please go here:
https://bitbucket.org/yt_analysis/yt/issues/new
Note that you will not receive updates if you are not logged in when you create the bug.
= What's Next? =
The next alpha release (3.0a4) will be released sometime this fall, but development can be monitored either at http://bitbucket.org/yt_analysis/yt-3.0 or in the main yt repository under the named branch "yt-3.0". We hope to focus on generalizing Octree support further, adding better non-Cartesian support, and supporting generic smoothing kernel definitions.
If you'd like to participate in yt development, please stop by #yt on irc.freenode.net ( http://yt-project.org/irc.html ) or yt-dev ( http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org ), or submit a pull request on BitBucket.
Thanks very much,
Matt, on behalf of the yt development team
Changelog:
(Including 434 changesets from 7 contributors since 3.0a2)
Hi all,
Thanks to Colin DeGraf, Chris Moody and Nathan Goldbaum for identifying and correcting a critical bug in the RAMSES data loader. This fix has now been pushed and safeguards have been put in place to prevent a regression.
Best,
Matt
On Wed, Aug 21, 2013 at 2:53 PM, Matthew Turk matthewturk@gmail.com wrote:
Hi everyone,
We're proud to announce the third ALPHA release of yt 3.0. yt has recently transitioned to a time-based release plan ( https://ytep.readthedocs.org/en/latest/YTEPs/YTEP-0008.html ) and this is the third scheduled alpha of 3.0, although we've grossly missed the estimated date of July 15. No date for a "final" release has yet been set, but there will likely be several more alphas before that time.
The yt 2.5 codebase, and further updates in the 2.x series, will be supported for a considerable amount of time and you do not need to upgrade.
= yt 3.0?! =
yt 3.0 represents a new direction forward for yt: getting rid of all the underlying assumptions that data needs to be sectioned off into nice little grid patches. This includes supporting Octree codes natively (NMSU-ART and RAMSES), eventual support for SPH codes, and even opaque data structures where the data is extremely large (ARTIO). We're even planning support for natively handling cylindrical and spherical coordinates.
More: http://blog.yt-project.org/post/WhatsUpWith30.html
However, this is an alpha release. Not all of the existing codes have been ported to 3.0.
Additionally, this release benefits from the technical and non-technical contributions from many new people. yt is developed in the context of a community of contributors, and with the push toward a new architecture, we aim to expand that community considerably. In particular, this release has considerably benefited from contributions from many new individuals.
= Getting It! =
To try out yt 3.0, you can now pull from the main yt repository, update to the yt-3.0 branch, and rebuild your extensions. Or, if you would like to create a new, safely sectioned off environment, simply re-run the normal "development" install script after changing the variable BRANCH to "yt-3.0".
If you would like to try out yt 3.0 and are having trouble, please write to the yt-users mailing list for assistance.
The yt 3.0 install script may also work, which can be obtained by executing these commands:
wget http://hg.yt-project.org/yt/raw/yt-3.0/doc/install_script.sh bash install_script.sh
= What's New? =
A demo notebook demonstrating much new functionality, and including the full release notes, can be found here:
http://hub.yt-project.org/nb/88u14f
The bullet-pointed release notes can be found at the end of this email, as well. The main improvements include considerable memory usage reduction, ARTIO spatial data indexing support, better particle support, an overhaul of the selection methods for data objects, and a mechanism for on-the-fly definitions of particle types based on boolean filters.
Additionally, this release was used in the production of the AGORA project flagship paper. The analysis script used there can be seen at this short URL:
and the paper can be found here: http://arxiv.org/abs/1308.2669
= Reporting Problems =
If you test out yt 3.0 we want to hear if it DID or DID NOT work! Feedback is crucial at this time. yt-users and yt-dev are both good forums for discussion, asking questions, and reporting problems. Lots of things have changed on the backend, but we have attempted to minimize the user-facing changes.
To report a bug please go here:
https://bitbucket.org/yt_analysis/yt/issues/new
Note that you will not receive updates if you are not logged in when you create the bug.
= What's Next? =
The next alpha release (3.0a4) will be released sometime this fall, but development can be monitored either at http://bitbucket.org/yt_analysis/yt-3.0 or in the main yt repository under the named branch "yt-3.0". We hope to focus on generalizing Octree support further, adding better non-Cartesian support, and supporting generic smoothing kernel definitions.
If you'd like to participate in yt development, please stop by #yt on irc.freenode.net ( http://yt-project.org/irc.html ) or yt-dev ( http://lists.spacepope.org/listinfo.cgi/yt-dev-spacepope.org ), or submit a pull request on BitBucket.
Thanks very much,
Matt, on behalf of the yt development team
Changelog:
(Including 434 changesets from 7 contributors since 3.0a2)