Wed Sep 16 2020 19:14:03.000000000
Gkyl built with a4430cbb5d93
Gkyl built on Sep 16 2020 01:25:31
Initializing Vlasov-Maxwell simulation ...
Initializing completed in 3.50176 sec
Starting main loop of Vlasov-Maxwell simulation ...
Step 0 at time 0. Time step 0.0180326. Completed 0%
0123456789 Step 278 at time 5.01307. Time step 0.0180326. Completed 10%
0123456789 Step 555 at time 10.0081. Time step 0.0180326. Completed 20%
0123456789 Step 832 at time 15.0031. Time step 0.0180326. Completed 30%
0123456789 Step 1110 at time 20.0162. Time step 0.0180326. Completed 40%
0123456789 Step 1387 at time 25.0112. Time step 0.0180326. Completed 50%
0123456789 Step 1664 at time 30.0063. Time step 0.0180326. Completed 60%
0123456789 Step 1941 at time 35.0013. Time step 0.0180326. Completed 70%
0123456789 Step 2219 at time 40.0144. Time step 0.0180326. Completed 80%
0123456789 Step 2496 at time 45.0094. Time step 0.0180326. Completed 90%
0123456789 Step 2773 at time 50. Time step 0.0136003. Completed 100%
0
Total number of time-steps 2774
Solver took 3209.08362 sec (1.156843 s/step) (54.918%)
Solver BCs took 83.27781 sec (0.030021 s/step) ( 1.425%)
Field solver took 3.61164 sec (0.001302 s/step) ( 0.062%)
Field solver BCs took 1.40878 sec (0.000508 s/step) ( 0.024%)
Function field solver took 0.00000 sec (0.000000 s/step) ( 0.000%)
Moment calculations took 289.90340 sec (0.104507 s/step) ( 4.961%)
Integrated moment calculations took 101.71780 sec (0.036668 s/step) ( 1.741%)
Field energy calculations took 0.11471 sec (0.000041 s/step) ( 0.002%)
Collision solver(s) took 0.00000 sec (0.000000 s/step) ( 0.000%)
Collision moments(s) took 0.00000 sec (0.000000 s/step) ( 0.000%)
Source updaters took 0.00000 sec (0.000000 s/step) ( 0.000%)
Stepper combine/copy took 1251.96865 sec (0.451323 s/step) (21.425%)
Time spent in barrier function 174.33926 sec (0.062848 s/step) ( 3%)
[Unaccounted for] 902.31721 sec (0.325277 s/step) (15.442%)
Main loop completed in 5843.40363 sec (2.106490 s/step) ( 100%)
The \(32^2 \times 32^2\) higher resolution simulation is ~3.2 times more expensive per time-step than the \(16^2 \times 16^2\). This cost difference corresponds to a speed-up of a factor of five compared to the expected cost of a serial simulation (16 times more grid cells and only 3.2 times more expensive).