The pull request for the auto synchronization is here:
https://bitbucket.org/eschnett/carpet/pull-requests/13/presync/diff
These changes helped us resolve a problem with the GPU ML_BSSN, so I'd like to not lose them. Thanks.
Cheers,
Steve
On 06/27/2016 10:40 AM, Roland Haas wrote:
Present: Frank, Eloisa, Matt, Roland, Steve, Zach, Erik,
Using slack to replace the IRC channel:
- Frank inverstigated slack and used it in a different project and has had good experience so far. A test slack project has been created: https://einsteintoolkit.slack.com if you would to test this please send an email an Frank Loeffler knarf@cct.lsu.edu until we have a more permanent solution (in case we decide to use slack). Please provide your email address and name to appear in slack.
Making grid function storage in HydroBase optional:
- currently there are a number of grid functions that are not always being used or could be recomputed
- there is a desire to make storage for those optional with the default being to have storage
- Roland feels that this can be cumbersome if all client thorns require logic to check for storage rather than being able to rely on a complete set of variables always being present. This applies in particular to eps which can only be recomputed if the EOS is known
Making GRHydro_Initdata independent of HydroBase:
- agree that this is good idea, would make it useful as ID generator for other ID thorns eg for shock tubes
- some parts are unfortunately tied to GRHydro and would have to be moved out of the thorn
Reducing number of checkpointed variables in McLachlan:
- RHS variables are fine to not be checkpointed. There should be a helper thorn ML_BSSN_Helper that adjust the checkpoint tags at runtime
- constraints need to be checkpointed since they require prolongation to compute which cannot be re-created after recovery
Carpet-preSync by Steve, a pull request exists:
- an attempt to move the start of the SYNC forward so that a grid function that is computed only in the interior later needed everywhere SYNCing happens automatically and early
TeamSpeak or Mumble as Google Hangout replacement:
- both use equivalent technology
- community is split about which one is better
- hosting at LSU may be possible as IT is interested in this
- external hosters tend to offer both for little money, will need grant money for this
Yours, Roland
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