[Users] Black hole data for EHFinder

Maitraya Bhattacharyya maitraya.linux at gmail.com
Fri Jan 20 13:05:05 CST 2017

Dear Eloisa,

My ultimate goal is to look at more general data, hence I want to start
knowing how to use EHFinder.

Any type of black hole simulation data and instructions on how to run
EHFinder is highly appreciated.


On Jan 21, 2017 00:15, "Eloisa Bentivegna" <eloisa.bentivegna at ct.infn.it>

On 20/01/17 10:25, Maitraya Bhattacharyya wrote:
> Dear all,
> I would like to know how to use the EHFinder. Can anyone help me as to
> how to use this ?
> Also, if you have some simple data, like a Schwarzschild or Kerr black
> hole, can you please share.
> I have some data from other simulation packages (which are spread over a
> uniform grid). My goal would be to eventually run the EHFinder on that.

Dear Maitraya,

since you have a spherically-symmetric spacetime, your problem is much
simpler than what EHFinder was designed for, and in my opinion it isn't
worth the effort of turning your data into 3+1 and importing it in Cactus.

My suggestion is that you take a look, e.g., at section 7.2 of this book:


You'll see than in spherical symmetry the problem greatly simplifies,
and can be solved with a few lines of code.

I hope this helps,
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