AsterX

AsterX is a new open-source GRMHD code based on the CarpetX infrastructure. The source code for AsterX can be found at https://github.com/jaykalinani/AsterX.

Feature Requirements

• Flux Solvers
  • Lax-Friedrichs (completed)
  • HLLE 3rd order (completed, final testing: Jay)
  • HLLE 4th order (TODO)
  • HLLE 6th order (TODO)
  • HLLD (TODO)

• Reconstruction Methods
  • MinMod (completed)
  • PPM (completed, final testing: Lorenzo)
  • WENO (TODO)

• Con2Prim Schemes
  • 2D Noble (completed, still testing)
  • 1D Palenzuela (completed, still testing)
  • 1D Newmann-Hamlin (TODO)
  • 3D NR (TODO)
  • 1D RePrimAnd (TODO)

• EOS Framework
  • Ideal Gas (completed)
  • Polytropic (completed, final testing: Jay)
  • Piecewise-polytropic (TODO)
  • Hybrid (TODO)
  • Finite temperature tabulated (TODO)

• Vector Potential evolution
  • Flux CT (completed)
  • Upwind CT - HLLE (TODO: Lorenzo)
  • Upwind CT - HLLD (TODO)

• Other requirements
  • Font fix
  • Cap on Lorentz factor
  • Reconstruct pressure instead of epsilon
  • PPM summation fix
  • Evolution equation for entropy

Tests

• 1D tests
  • Balsara testsuite low resolution (completed)
  • Balsara testsuite high resolution AMR (TODO)

• 2D tests
  • Cylindrical Explosion (TODO: Jay)
  • Magnetic Rotor (TODO: Lorenzo)
  • Loop Advection (TODO: Lorenzo)
  • Kelvin Helmholtz Instability AMR (TODO)
  • Rayleigh Taylor Instability AMR (TODO)

• 3D tests
  • Magnetized TOV (TODO: Liwei, Jay)
  • Magnetized Fishbone-Moncrief BH disk (TODO)
  • Magnetized BNS (TODO)

• Scaling Tests
  • Weak Scaling (TODO: Liwei)
  • Strong Scaling (TODO: Liwei)

• Profiling
  • Using TOV tests (TODO)