2017 MHD Workshop

Workshop at Columbia.

Venue

• The workshop will take place in the Conference Room of the Center for Theoretical Physics at Columbia. The Conference Room (Room 907) is located on the 9th floor of the Physics building (Pupin Laboratories)
• Street address: 538 West 120th Street, New York, NY 10027
• Note that the main entrance is on the Campus Level (5th floor, south side) as indicated here:

map

• You can enter Campus at 116th/Broadway. There is also the possibility of entering Pupin Hall from 120th/Broadway. In this case, enter through the North West Corner Building and take the stairs/escalators up to the Campus level, exit the building and enter Pupin through the main entrance.
• The conference room has a board and a big presentation screen -> There is the possibility of giving a black board talk or a slide presentation, or a combination of both.

Time and Agenda

Monday
2:00 — 2:10: Welcome
2:10 — 2:35: Philipp to talk on flux CT
2:35 — 3:00: Daniel to talk on vector potential and MHD con2prim
3:00 — 3:25: David to talk on DG and Zelmani M1
3:25 — 3:55: Coffee break
3:55 — 4:20: Christian to talk on M1 work/results
4:20 — 4:45: Erik: FunHPC — current state, toward AMR, towards KNL
4:45 — 5:10: Roland: HydroFunToy — code design and capability
5:10 — 5:45: Closing discussion and road map for the week

Tuesday to Thursday
9:00 am till late: “workshop” -> work on topics identified on Monday

Friday
9:00 — 11:00: Wrap it up
11:00 — 12:30: Summary of the workshop and defining future directions/coordinate future work
12:30: lunch/end of workshop

Talks

• The talks on Monday afternoon are meant to be informal kick-off talks in order to start the discussion in a well defined way and to identify the topics/aspects that we want to work on in the following days (or that we want to keep in mind while working on other aspects). I’d suggest that we keep them fairly short (no more than ~20-25 mins including some discussion), just trying to provide a basic introduction that brings everyone onto the same page, addressing the following basic questions like:
  • What is the analytic formulation (basic intro to the equations — if applicable)?
  • What is the current status, or what have people been working on so far?
  • What are the short & long-term goals? What do we need to implement/what needs to be done to move forward?
  • What do you think could be the specific goals for the week?

• Please check (and add/modify) the title of your talk you volunteered for (see above)

• Feel free to add some notes/thoughts/ideas regarding your talk on the wiki even before the workshop

Meeting minutes (delete once done):

• Daniel and Philipp have discussed a bit what they want to cover and

prepared a draft and to use a wiki (suggest ET wiki, all agree)

• • a page is here:

https://docs.einsteintoolkit.org/et-docs/2017_MHD_Workshop

• Daniel will provide some local information
• interest in radiation transport and its current limitations
• interest to get an overview about HydroFunHPC code (design idea, iintention) and FunHPC in general
  • Currently HydroFunHPC has all the pieces but fails (likely in con2prim) with NaNs on the surface of a TOV star.
  • ultimately this requires integration with Carpet to overlap more communication and computation

• plan:
  • kickoff talks on Monday
  • Philipp to talk about CT
  • Daniel to talk about vector potential method and MHD con2prim
  • Christian and David to talk about M1
  • Erik and Roland to talk about (Hydro)FunHPC

Kick-Off Talks

• Erik: FunHPC -- current state, towards AMR, towards KNL
• Roland: HydroFunToy -- code design and capability