# \#performance **URL:** https://precice.discourse.group/tag/performance/77.md [Latest](https://precice.discourse.group/latest.md) · [Categories](https://precice.discourse.group/categories.md) · [Tags](https://precice.discourse.group/tags.md) --- ## [Slow data transfer in precice setup](https://precice.discourse.group/t/slow-data-transfer-in-precice-setup/2677)
**Author:** [@alebherz](https://precice.discourse.group/u/alebherz)\ **Replies:** 8\ **Last updated:** [December 3, 2025, 8:24am UTC](https://precice.discourse.group/t/slow-data-transfer-in-precice-setup/2677 "2025-12-03T08:24:11Z")
Hello preCICE-community! I am working on coupling our inhouse particle solver (XPS) with OpenFOAM using volumetric coupling. I use the OpenFOAM adapter with openmpi (4 ranks) and domain decomposition on the fluid side -… --- ## [Highlights of the new preCICE release v3.3](https://precice.discourse.group/t/highlights-of-the-new-precice-release-v3-3/2636)
**Author:** [@uekerman](https://precice.discourse.group/u/uekerman)\ **Replies:** 0\ **Last updated:** [October 9, 2025, 3:52pm UTC](https://precice.discourse.group/t/highlights-of-the-new-precice-release-v3-3/2636 "2025-10-09T15:52:04Z")
Summary: With preCICE v3.3.0, we focused on improving clarity, portability, and tooling. The new release brings clearer coupling-state output and more helpful error messages. Tooling has been reworked significantly and i… --- ## [Automated parsing of profiles/traces](https://precice.discourse.group/t/automated-parsing-of-profiles-traces/2400)
**Author:** [@dabele](https://precice.discourse.group/u/dabele)\ **Replies:** 2\ **Last updated:** [April 1, 2025, 8:19am UTC](https://precice.discourse.group/t/automated-parsing-of-profiles-traces/2400 "2025-04-01T08:19:01Z")
I have a couple of trace files produced by precice (Performance Analysis. I would like to extract data from them in an automated way. I have found the python API of perfetto, which allows SQL or Pandas Queries. Overall … --- ## [pyPRECICE slow at setting up secondary communications](https://precice.discourse.group/t/pyprecice-slow-at-setting-up-secondary-communications/1889)
**Author:** [@padovan3](https://precice.discourse.group/u/padovan3)\ **Replies:** 11\ **Last updated:** [April 22, 2024, 9:28am UTC](https://precice.discourse.group/t/pyprecice-slow-at-setting-up-secondary-communications/1889 "2024-04-22T09:28:59Z")
Hi, I am using pyPRECICE to exchange volumetric data between a python script and a CFD solver (the python code sends the state vector q in conservative variables, and the CFD solver returns the right-hand side of the Na… --- ## [preCICE v3.0.0 is finally out](https://precice.discourse.group/t/precice-v3-0-0-is-finally-out/1781)
**Author:** [@uekerman](https://precice.discourse.group/u/uekerman)\ **Replies:** 2\ **Last updated:** [February 27, 2024, 9:42am UTC](https://precice.discourse.group/t/precice-v3-0-0-is-finally-out/1781 "2024-02-27T09:42:45Z")
The longer you wait for something, the more you appreciate it, right? preCICE v3 is finally out and we are pretty happy about it. :tada: v3.0.0 is a breaking release. This means that the API and the configuration of pre… --- ## [A question about some limit about precice!](https://precice.discourse.group/t/a-question-about-some-limit-about-precice/1523)
**Author:** [@ilovenili](https://precice.discourse.group/u/ilovenili)\ **Replies:** 4\ **Last updated:** [August 19, 2023, 7:49am UTC](https://precice.discourse.group/t/a-question-about-some-limit-about-precice/1523 "2023-08-19T07:49:55Z")
hi，my question is: Are there any limitations to the commercial application of precice? for example: 1 Is there a limit to the maximum grid nodes number on interface-node or all-node that can be computed? 2 How stable… --- ## [Have you ever done a FSI analysis with a grid size of over 50 million](https://precice.discourse.group/t/have-you-ever-done-a-fsi-analysis-with-a-grid-size-of-over-50-million/1395)
**Author:** [@ilovenili](https://precice.discourse.group/u/ilovenili)\ **Replies:** 1\ **Last updated:** [May 31, 2023, 8:47pm UTC](https://precice.discourse.group/t/have-you-ever-done-a-fsi-analysis-with-a-grid-size-of-over-50-million/1395 "2023-05-31T20:47:22Z")
I want to know if Precision can support FSI computing for 50 million or even 80 million grids, and how stable is it? --- ## [Slower performance on cluster than local machine](https://precice.discourse.group/t/slower-performance-on-cluster-than-local-machine/1428)
**Author:** [@Moe\_dae](https://precice.discourse.group/u/Moe_dae)\ **Replies:** 4\ **Last updated:** [May 30, 2023, 6:35am UTC](https://precice.discourse.group/t/slower-performance-on-cluster-than-local-machine/1428 "2023-05-30T06:35:16Z")
I have been using precice for coupling two Lattice Boltzmann solvers. I encountered a weird issue. When I run the coupled solvers in paralell on my local machine using 8 cores ( 4 for each solver) the running time is 4 t… --- ## [Solver load balancing](https://precice.discourse.group/t/solver-load-balancing/244)
**Author:** [@DavidSCN](https://precice.discourse.group/u/DavidSCN)\ **Replies:** 1\ **Last updated:** [May 19, 2020, 6:47pm UTC](https://precice.discourse.group/t/solver-load-balancing/244 "2020-05-19T18:47:33Z")
Is it possible for preCICE to visualize the load balancing of my individual solvers during parallel coupling schemes? There are various ways to change the workload of individual solvers and it would be nice to see/improv…