Einstein Toolkit Meeting on 23 January 2020

• present: Alois Schaffarczyk, Bill Gabella, Christopher Evans, Leo Werneck, Liu Haoyang, Maria Babiuc-Hamilton, Roland Haas, Zach Etienne

• status of proposed new codes for the next release:
  • new TOV solver created with NRPy+
    • c- and python-based version
    • includes a broader range of EoS, including piece-wise polytrops
    • could possibly replace current TOV solver in ET
    • Action item: create ticket for code review; ensure that it is backwards compatible with current TOV solver
  • self-force code -> next week

• ET EU meeting status -> next week

• elect release coordinator for next release (2020_04) [RH]
  • Please volunteer to coordinate the next release!
  • elect coordinator next week

• Update on "Cosmology and Particles" Working Group
  • currently 19 members with diverse scientific background covering cosmology, modified gravity, high energy physics and numerical relativity
  • Activities:
    • monthly calls
    • discussion and presentation of dedicated topics to foster new collaborations
    • development of new thorns and code revisions; benchmark between different codes
  • Current status:
    • group has been dormant
    • Please step forward if you would like to steps forward as co-chair!

• Open tickets
  • thread safety in Cactus; see ticket https://bitbucket.org/einsteintoolkit/tickets/issues/2326/cctk_vinfo-is-not-thread-safe
  • Erik fixed bug in CCTK_TraverseString; see ticket https://bitbucket.org/einsteintoolkit/tickets/issues/2317/cctk_traversestring-with-selection

-- 
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Dr. Helvi Witek
Assistant Professor
Department of Physics
University of Illinois at Urbana-Champaign
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