Bug in week-of-code: PressurelessCollapse crashes in euler.src:492

[jbordner]

Before cycle 1.

INITIALIZE Level 0 StaticSiblingList
TopGrid dt = 3.700000e-01     time = 0    cycle = 0
Level[0]: dt = 0.37  0.37 (0.37/0.37)
==================
=== ENZO ERROR ===   euler.src: 492   node 0
==================
 stop in euler with e < 0
 euler: dnu <= 0:                    4                    1
 a -9.40910004737952420E-010  1.00000000000000004E-010   37.000000000000000      
 0.37000000000000000      -0.14182860014798693      -0.14182860014798693     
 b   0.0000000000000000       1.00000000000000004E-010  9.99999999999999907E-011
 c   0.0000000000000000       0.14184043230755314       0.42316746061510790     
 d   0.0000000000000000       9.99999999999999945E-021  9.99999999999999945E-021
 e   0.0000000000000000       1.00000000000000004E-010  9.99999999999999907E-011
 f   0.0000000000000000       0.14184043230755314       0.42316746061510790     
 g   0.0000000000000000       9.99999999999999945E-021  9.99999999999999945E-021
 h   0.0000000000000000       0.14184043230755314       0.42316746061510790     
 i   0.0000000000000000       9.99999999999999945E-021  9.99999999999999945E-021
 j   0.0000000000000000       1.00000000000000004E-010  9.99999999999999907E-011
 k   0.0000000000000000       1.00000000000000004E-010   1.0000000000000000     
 l   0.0000000000000000       0.14184043230755314       0.42316746061510790     
 m   0.0000000000000000       0.14184043230755314       0.42316746061510790     
 n   0.0000000000000000       9.99999999999999945E-021  9.99999999999999945E-021
 o   0.0000000000000000       9.99999999999999945E-021  9.99999999999999945E-021
 p  1.00000000000000004E-010  1.00000000000000004E-010   1.0000000000000000     
 q   0.0000000000000000        0.0000000000000000        0.0000000000000000     
 r   0.0000000000000000        0.0000000000000000        0.0000000000000000     
 s  1.00000000000000004E-010  1.00000000000000004E-010  1.00000000000000004E-010
 t   0.0000000000000000        0.0000000000000000        0.0000000000000000     
  -0.0000000000000000        3.0668201580011489        6.0827465580011841   

[jwise]

This was also present in v1.5, see Bug #57. I'll take a look.

[jwise]

The acceleration field is needed for computing the timestep. For pressure-less runs, do not delete AccelerationField? in EvolveLevel?(). I also needed to add an initial timestep to the parameter file. Fixed in 1325:ffe805645a56