MOSAIK

Timestamp:

Jan 10, 2020 11:36:59 AM (5 years ago)

Author:

suehring

Comment:

--

project/results

@@ -49 +49 @@
 || Start child-only simulation || 23/10/2019 ||  || Due to continuous errors within the nested simulation, a non-nested (child-only) simulation is started to get first results for evaluation. Simulation is still running (06/11/2019). ||
 || Finished child-only simulation || 27/11/2019 ||  || Simulation crashed at 11:57:34.95UTC with input/output error. Data up to that point is saved. ||
+|| Crashes by MPI_INIT || 03/11/2019 ||  || Simulation crashed several time in MPI_INIT (environment problems) ||
+|| Crash || 03/12/2019 ||  || program abort due to check of surface_fractions, check was revised so that surface fractions can also be set at building grid points ||
+|| Crash || 06/12/2019 ||  || HDF5 Error - could not reproduced ||
+|| Crash || 08/12/2019 ||  || Floating invalid in advection for u-component at first timestep. Unfortunately, this error could not reproduced. '''Remark:''' Jobs were queued for about a week on HLRN due to too low capacities, so that investigations and bug tracing was delayed. '''Remark:''' Jobs were queued for about a week on HLRN due to too low capacities, so that investigations and bug tracing was delayed.||
+|| Parent simulation || 23/12/2019 ||  || Proceed investigation on HLRN Berlin. Parent simulation runs for an hour, results looks plausible. ||
+|| Nested simulation - numerical issues || 27/12/2019 ||  || Nested simulation ran for 1 minute. However, large oscillation in the u- and v-component could be observed within the child. I hypothesize that this is due to the 3D-initialization of the child from the parent. Due to mismatches in the building configuration (due to the large grid aspect ratio), many grid points in the child remain zero after initialization, even though these grid points belong to the atmosphere. Since the mass-flux is largely affected by this, strong oscillations arise within the child, finally lead to a crash. ||
+|| Nested simulation - initial run || 03/01/2020 ||  || Initialization of the child was changed. Child is now initialized via dynamic driver rather than via the coupler. This way all atmosphere grid points are initialized appropriately. The nested simulation is at t=30min. ||
+|| Nested simulation - restart run || 08/01/2020 ||  || Simulation crashes in reading the restart data. ||
 
 (note that the list of past bugfixes will be updated soon)