High resolution performance results
24 processors, SHC
- 5 levels: base level 180x40 cells with 4 more levels refined 2,2,2,4 times respectively, x=(-.005, .085), y=(0, 0.02)
| Method | whole time | integration time | time steps | cost/timestep (sec) |
| Roe- van Albada: 2x Refined, levels refined 2,2,4,4 | 15085 | 5079 | 444 | 11.4 |
| Weno-TCD-bandwidth 4th order: pressure only dcflag, pcurv=1e6 | 14349 | 5551 | 430 | 12.9 |
| Weno-TCD-bandwidth 2nd order: pressure only dcflag, pcurv=5e6 | 10895 | 4232 | 468 | 9.0 |
| Weno-TCD-bandwidth 4th order: pressure only dcflag, pcurv=5e6 | 29595 | 6706 | 498 | 13.5 |
| Weno-TCD-bandwidth 4th order: pressure only dcflag, pcurv=1e7 | 29857 | 12081 | 639 | 18.9 |
64 processors, SHC
- 5 levels: base level 100x40 cells with 4 more levels refined 2,2,4,4 times respectively, x = [-0.005,0.095], y = [0, 0.04]
- The "normalized cost/timestep" is adjusted for the differing base grid resolutions
| Method | whole time | integration time | time steps | cost/timestep (sec) | normalized cost/timestep |
| Roe- Min-Mod | 4118 | 448 | 212 | 2.1 | 1.1 |
| Roe- van Albada | 4364 | 490 | 216 | 2.3 | 1.15 |
| Roe- van Albada 2x refined 180x40 base grid (-.005, .085)(0, 0.02) | 10246 | 1875 | 443 | 4.2 | 4.2 |
| Roe- van Albada: inviscid | 3510 | 415 | 175 | 2.4 | 1.2 |
| Weno-sym-bandwidth 2nd order | 25479 | 3300 | 207 | 16 | 8 |
| Weno-sym-bandwidth 4th order | 34272 | 4854 | 213 | 23 | 11.5 |
| Weno-sym-order 4th order | 26831 | 3465 | 208 | 17 | 8.5 |
| Weno-sym-order 6th order | 39001 | 5035 | 212 | 24 | 12 |
| Weno-TCD-bandwidth 2nd order | 17198 | 2002 | 207 | 9.7 | 4.85 |
| Weno-TCD-bandwidth 4th order | 29232 | 3752 | 223 | 17 | 8.5 |
| Weno-TCD-bandwidth 4th order: pressure only dcflag, 180x40 base grid (-.005, .085)(0, 0.02) | 10844 | 2574 | 567 | 4.5 | 4.5 |
| Weno-TCD-order 4th order | 17990 | 2139 | 207 | 10 | 5 |
| Weno-TCD-order 6th order | 25517 | 3091 | 214 | 14 | 7 |
Methods
- Roe solver with Min-Mod Limiting:
Method(1) = 1 (for viscous terms), Method(2) = 2, Method(3) = 0, Limiter(1)= 1, Limiter(2) = 1, Limiter(3) = 1
- Roe solver with van Albada Limiting:
Method(1) = 1 (for viscous terms), Method(2) = 2, Method(3) = 0, Limiter(1)= 5, Limiter(2) = 5, Limiter(3) = 5
(Note: current version of code was locally modified to enable the use of these input parameters)
- WENO - 2nd order Symmetric bandwidth optimized, Method = 0, Optimize = 1, Order = 2, GhostCells = 3
- WENO - 4th order Symmetric bandwidth optimized, Method = 0, Optimize = 1, Order = 4, GhostCells = 4
- WENO - 4th order Symmetric order optimized, Method = 0, Optimize = 0, Order = 3, GhostCells = 3
- WENO - 6th order Symmetric order optimized, Method = 0, Optimize = 0, Order = 5, GhostCells = 4
- WENO-TCD - 2nd order Symmetric bandwidth optimized, Method = 1, Optimize = 1, Order = 2, GhostCells = 3
- WENO-TCD - 4th order Symmetric bandwidth optimized, Method = 1, Optimize = 1, Order = 4, GhostCells = 4
- WENO-TCD - 4th order Symmetric order optimized, Method = 1, Optimize = 0, Order = 4, GhostCells = 3
- WENO-TCD - 6th order Symmetric order optimized, Method = 1, Optimize = 0, Order = 6, GhostCells = 4
(Note that for the use of WENO-TCD a problem dependent cles_dcflag_curv2d.f function was specifed in order to control the "discontinuity" flagging of where the WENO solution is used instead of TCD.)
DoubleMachReflectionStudy
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JackZiegler? - 11 Aug 2008