Measure the computing time of particle interpolation

[hlokavarapu]

At the moment, the time taken for the particle interpolation algorithm is not being measured. This piece of information will be important in better understanding the cost of different interpolation algorithms, the scaling properties, the time complexity as a function of number of particles, and etc.

[hlokavarapu]

@gassmoeller

After adding call to computing_timer.enter_section(" Particles: Interpolate") in the function void Simulator<dim>::interpolate_particle_properties (const AdvectionField &advection_field) the timing summary is such that:

+---------------------------------------------+------------+------------+
| Total wallclock time elapsed since start    |      1.48s |            |
|                                             |            |            |
| Section                         | no. calls |  wall time | % of total |
+---------------------------------+-----------+------------+------------+
| Assemble Stokes system          |         2 |    0.0433s |       2.9% |
| Assemble composition system     |         2 |     0.209s |        14% |
| Assemble temperature system     |         2 |    0.0716s |       4.8% |
| Build Stokes preconditioner     |         1 |    0.0248s |       1.7% |
| Build composition preconditioner|         2 |    0.0134s |       0.9% |
| Particles: Interpolate          |         4 |    0.0268s |       1.8% |
| Solve Stokes system             |         2 |      0.07s |       4.7% |
| Solve composition system        |         2 |   0.00376s |      0.25% |
| Initialization                  |         1 |    0.0264s |       1.8% |
| Particles: Advect               |         4 |     0.287s |        19% |
| Particles: Exchange ghosts      |         3 |   0.00322s |      0.22% |
| Particles: Generate             |         1 |    0.0436s |       2.9% |
| Particles: Initialization       |         1 |  0.000129s |         0% |
| Particles: Initialize properties|         1 |    0.0458s |       3.1% |
| Particles: Sort                 |         4 |    0.0215s |       1.4% |
| Particles: Update properties    |         2 |      0.34s |        23% |
| Postprocessing                  |         2 |     0.695s |        47% |
| Setup dof systems               |         1 |     0.178s |        12% |
| Setup initial conditions        |         1 |       0.1s |       6.8% |
+---------------------------------+-----------+------------+------------+

Is there a method of controlling where Particles: Interpolate is listed in the summary?

[gassmoeller]

I though it would be sorted in the order the std::map<std::string,Section> would sort the entries, which should be alphabetical. In your post above you have a space in front of the Particles do you add the same in the code? What happens if you remove the space?

[hlokavarapu]

Super simple, thanks Rene!

+---------------------------------------------+------------+------------+
| Total wallclock time elapsed since start    |      1.42s |            |
|                                             |            |            |
| Section                         | no. calls |  wall time | % of total |
+---------------------------------+-----------+------------+------------+
| Assemble Stokes system          |         2 |    0.0414s |       2.9% |
| Assemble composition system     |         2 |     0.195s |        14% |
| Assemble temperature system     |         2 |    0.0686s |       4.8% |
| Build Stokes preconditioner     |         1 |    0.0245s |       1.7% |
| Build composition preconditioner|         2 |    0.0122s |      0.86% |
| Solve Stokes system             |         2 |    0.0406s |       2.9% |
| Solve composition system        |         2 |   0.00313s |      0.22% |
| Initialization                  |         1 |    0.0267s |       1.9% |
| Particles: Advect               |         4 |     0.286s |        20% |
| Particles: Exchange ghosts      |         3 |   0.00306s |      0.22% |
| Particles: Generate             |         1 |    0.0422s |         3% |
| Particles: Initialization       |         1 |  0.000125s |         0% |
| Particles: Initialize properties|         1 |    0.0461s |       3.3% |
| Particles: Interpolate          |         4 |    0.0251s |       1.8% |
| Particles: Sort                 |         4 |    0.0229s |       1.6% |
| Particles: Update properties    |         2 |      0.33s |        23% |
| Postprocessing                  |         2 |     0.685s |        48% |
| Setup dof systems               |         1 |     0.179s |        13% |
| Setup initial conditions        |         1 |    0.0978s |       6.9% |
+---------------------------------+-----------+------------+------------+

[bangerth]

Will be fixed by #1573.

[gassmoeller]

closed by #1573