2026-08-17-001 / HotSpot-2d

Build/Test information:
- Build directory: Exec/run2d/
- Parallel run
  - MPI numprocs = 2
- Files:
  - input file: regtest.2d.hotspot
- Dimensionality: 2
Compilation:
- Successful
- Compilation time: 8.755 s
- Compilation command:
  make -j8 AMREX_HOME=/home/regtester/git/amrex/ DEBUG=FALSE USE_ACC=FALSE USE_MPI=TRUE USE_OMP=FALSE DIM=2 COMP=g++ TEST=TRUE USE_ASSERTION=TRUE USE_CUDA=TRUE
- make output
Execution:
- Execution time: 55.162 s
- 5 run average: 327.925 s
- Relative performance: 83.2% faster
- Execution command:
  mpiexec -n 2 ./amr2d.gnu.TEST.MPI.CUDA.ex regtest.2d.hotspot amr.plot_file=HotSpot-2d_plt amr.check_file=HotSpot-2d_chk amr.checkpoint_files_output=0 amrex.the_arena_init_size=512000000
- execution output
- execution stderr
- job_info
Comparison:
- Successful

/home/regtester/git/amrex/Tools/Plotfile//fcompare.gnu.ex --abort_if_not_all_found -n 0 --rel_tol 9e-10 /home/regtester/RegTesting/rt-IAMR/IAMR-benchmarks/HotSpot-2d_plt00005 HotSpot-2d_plt00005

variable name absolute error relative error

(||A - B||) (||A - B||/||A||)

level = 0

x_velocity 2.095099094e-11 5.901071578e-11

y_velocity 3.606415167e-11 5.701086642e-11

density 1.14908083e-12 1.148940994e-12

tracer 2.312677827e-12 2.312677858e-12

tracer2 1.02851061e-12 1.033911375e-12

temp 1.940447802e-12 9.702296388e-13

gradpx 1.411225581e-10 5.467788243e-11

gradpy 2.849702696e-10 2.435977878e-11

divu 2.525386381e-17 7.396190017e-12

dsdt 4.97337089e-16 7.87621419e-12

level = 1

x_velocity 2.734171223e-11 7.205201386e-11

y_velocity 3.68284292e-11 5.661312515e-11

density 2.027489288e-12 2.026488497e-12

tracer 4.479749904e-12 4.479749713e-12

tracer2 1.404931727e-12 1.407614231e-12

temp 3.846700736e-12 1.923351609e-12

gradpx 3.11681847e-10 1.10247955e-10

gradpy 2.982805114e-10 2.476364351e-11

divu 9.625618885e-17 1.475221096e-11

dsdt 1.871719197e-15 1.090629002e-11

level = 2

x_velocity 3.120553815e-11 8.000449235e-11

y_velocity 3.719358155e-11 5.687797515e-11

density 2.467581695e-12 2.467065856e-12

tracer 5.247025037e-12 5.247024598e-12

tracer2 1.510958025e-12 1.513265523e-12

temp 5.424549698e-12 2.712275756e-12

gradpx 8.984102351e-10 3.146442583e-10

gradpy 5.690594662e-10 4.703307797e-11

divu 2.646430565e-16 3.43216248e-11

dsdt 4.480977086e-15 1.878981813e-11

variable name	absolute error	relative error
	(\|\|A - B\|\|)	(\|\|A - B\|\|/\|\|A\|\|)
level = 0
x_velocity	2.095099094e-11	5.901071578e-11
y_velocity	3.606415167e-11	5.701086642e-11
density	1.14908083e-12	1.148940994e-12
tracer	2.312677827e-12	2.312677858e-12
tracer2	1.02851061e-12	1.033911375e-12
temp	1.940447802e-12	9.702296388e-13
gradpx	1.411225581e-10	5.467788243e-11
gradpy	2.849702696e-10	2.435977878e-11
divu	2.525386381e-17	7.396190017e-12
dsdt	4.97337089e-16	7.87621419e-12
level = 1
x_velocity	2.734171223e-11	7.205201386e-11
y_velocity	3.68284292e-11	5.661312515e-11
density	2.027489288e-12	2.026488497e-12
tracer	4.479749904e-12	4.479749713e-12
tracer2	1.404931727e-12	1.407614231e-12
temp	3.846700736e-12	1.923351609e-12
gradpx	3.11681847e-10	1.10247955e-10
gradpy	2.982805114e-10	2.476364351e-11
divu	9.625618885e-17	1.475221096e-11
dsdt	1.871719197e-15	1.090629002e-11
level = 2
x_velocity	3.120553815e-11	8.000449235e-11
y_velocity	3.719358155e-11	5.687797515e-11
density	2.467581695e-12	2.467065856e-12
tracer	5.247025037e-12	5.247024598e-12
tracer2	1.510958025e-12	1.513265523e-12
temp	5.424549698e-12	2.712275756e-12
gradpx	8.984102351e-10	3.146442583e-10
gradpy	5.690594662e-10	4.703307797e-11
divu	2.646430565e-16	3.43216248e-11
dsdt	4.480977086e-15	1.878981813e-11

2026-08-17-001 / HotSpot-2d

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