# Uncategorized **URL:** https://precice.discourse.group/c/uncategorized/1.md [Latest](https://precice.discourse.group/latest.md) · [Categories](https://precice.discourse.group/categories.md) · [Tags](https://precice.discourse.group/tags.md) --- ## [Draft Proposal Submitted: Clean multi-step configuration](https://precice.discourse.group/t/draft-proposal-submitted-clean-multi-step-configuration/2858)
**Author:** [@brightyorcerf](https://precice.discourse.group/u/brightyorcerf)\ **Replies:** 2\ **Last updated:** [March 18, 2026, 5:16pm UTC](https://precice.discourse.group/t/draft-proposal-submitted-clean-multi-step-configuration/2858 "2026-03-18T17:16:22Z")
Hi @makis and the preCICE team, I’ve officially uploaded my rough draft proposal to the GSoC portal! I’m very open to feedback and ready to iterate on the milestones or technical specifics before the March 31st deadlin… --- ## [Introduction - Harsh Aggarwal](https://precice.discourse.group/t/introduction-harsh-aggarwal/2851)
**Author:** [@Harsh\_Aggarwal](https://precice.discourse.group/u/Harsh_Aggarwal)\ **Replies:** 0\ **Last updated:** [March 16, 2026, 7:06pm UTC](https://precice.discourse.group/t/introduction-harsh-aggarwal/2851 "2026-03-16T19:06:17Z")
Hey everyone! :waving\_hand: I’m Harsh, a CS student from India with a strong background in full-stack development and AI/GenAI systems. :hammer\_and\_wrench: Tech Stack: • Backend: Python, FastAPI, REST APIs • Frontend… --- ## [File naming convention](https://precice.discourse.group/t/file-naming-convention/2819)
**Author:** [@nots1dd](https://precice.discourse.group/u/nots1dd)\ **Replies:** 4\ **Last updated:** [March 11, 2026, 3:55pm UTC](https://precice.discourse.group/t/file-naming-convention/2819 "2026-03-11T15:55:00Z")
hi, i put the uncategorized tag as i didnt find any other suitable tag to be asking questions about the codebase i noticed that there are files named in lowercase and pascal case and am confused as to the reason behind … --- ## [Windows pre-commit fix: check-old-precice.py crashes on UTF-8 files (UnicodeDecodeError)](https://precice.discourse.group/t/windows-pre-commit-fix-check-old-precice-py-crashes-on-utf-8-files-unicodedecodeerror/2768)
**Author:** [@Flamki](https://precice.discourse.group/u/Flamki)\ **Replies:** 0\ **Last updated:** [February 24, 2026, 9:26pm UTC](https://precice.discourse.group/t/windows-pre-commit-fix-check-old-precice-py-crashes-on-utf-8-files-unicodedecodeerror/2768 "2026-02-24T21:26:59Z")
I found and fixed a Windows-specific pre-commit failure in check-old-precice.py. Problem check-old-precice.py used Path.read\_text() without explicit encoding. On Windows, this can default to CP1252 and crash on UTF-8 m… --- ## [When should we do the next preCICE Workshop?](https://precice.discourse.group/t/when-should-we-do-the-next-precice-workshop/2660)
**Author:** [@Makis](https://precice.discourse.group/u/Makis)\ **Replies:** 1\ **Last updated:** [November 5, 2025, 2:23pm UTC](https://precice.discourse.group/t/when-should-we-do-the-next-precice-workshop/2660 "2025-11-05T14:23:31Z")
Dear preCICE community, Following the 2025 workshop, we are now already preparing the next one. What we have fixed for now is that we want it in early 2027. It will again be fives days (Mo-Fr) and in Europe. Assuming t… --- ## [used two-level initialization and intra-comm:sockets Incompatibility issues](https://precice.discourse.group/t/used-two-level-initialization-and-intra-comm-sockets-incompatibility-issues/2507)
**Author:** [@lzx](https://precice.discourse.group/u/lzx)\ **Replies:** 5\ **Last updated:** [October 8, 2025, 8:57am UTC](https://precice.discourse.group/t/used-two-level-initialization-and-intra-comm-sockets-incompatibility-issues/2507 "2025-10-08T08:57:06Z")
Hi! I am studying the partitioned-pipe case in the tutorials. I set the intra-participant communication to : \, and I used two-level initialization: use-t… --- ## [2Dbreaking-dam divergence](https://precice.discourse.group/t/2dbreaking-dam-divergence/2560)
**Author:** [@HHao-gihub](https://precice.discourse.group/u/HHao-gihub)\ **Replies:** 6\ **Last updated:** [August 21, 2025, 2:28am UTC](https://precice.discourse.group/t/2dbreaking-dam-divergence/2560 "2025-08-21T02:28:08Z")
My entire calculation example is 1 second, but it diverges at around 0.01 seconds. I cannot find the reason. breaking-dam(1).zip (2.8 MB) solid-calculix.log (633.1 KB) --- ## [Volume coupling to particle tracker](https://precice.discourse.group/t/volume-coupling-to-particle-tracker/2586)
**Author:** [@Ray\_Scarr](https://precice.discourse.group/u/Ray_Scarr)\ **Replies:** 3\ **Last updated:** [August 15, 2025, 9:00am UTC](https://precice.discourse.group/t/volume-coupling-to-particle-tracker/2586 "2025-08-15T09:00:21Z")
My group has an in-house fluid solver with a preCICE adapter that has worked very well for surface coupling problems. We would like to add a Lagrangian particle-tracking capability to our solver, and for a variety of rea… --- ## [Communication configuration between two PC](https://precice.discourse.group/t/communication-configuration-between-two-pc/2561)
**Author:** [@sher010901](https://precice.discourse.group/u/sher010901)\ **Replies:** 0\ **Last updated:** [July 15, 2025, 7:54pm UTC](https://precice.discourse.group/t/communication-configuration-between-two-pc/2561 "2025-07-15T19:54:31Z")
Hi everyone, I’m working on a fluid-structure interaction (FSI) simulation where I want to distribute the computation across two different Windows PCs. The idea is to run OpenFOAM on one PC and CalculiX on the other, bo… --- ## [Dealing with Steady-State and Time-Dependent Couplings in preCICE: A Case Study in Fluid-Structure Interaction](https://precice.discourse.group/t/dealing-with-steady-state-and-time-dependent-couplings-in-precice-a-case-study-in-fluid-structure-interaction/2526)
**Author:** [@lucacattarossi](https://precice.discourse.group/u/lucacattarossi)\ **Replies:** 2\ **Last updated:** [June 6, 2025, 9:09am UTC](https://precice.discourse.group/t/dealing-with-steady-state-and-time-dependent-couplings-in-precice-a-case-study-in-fluid-structure-interaction/2526 "2025-06-06T09:09:02Z")
Hello everyone, I’d like to share an issue I recently encountered while working on a fluid-structure interaction (FSI) simulation using preCICE. The problem appears when I start running the fluid participant in parallel… --- ## [Perpendicular flap overset mesh problem](https://precice.discourse.group/t/perpendicular-flap-overset-mesh-problem/2383)
**Author:** [@Turan](https://precice.discourse.group/u/Turan)\ **Replies:** 7\ **Last updated:** [March 26, 2025, 8:36am UTC](https://precice.discourse.group/t/perpendicular-flap-overset-mesh-problem/2383 "2025-03-26T08:36:05Z")
Hello, I am trying to simulate the motion of a beam using the overset mesh method. Let me explain the purpose of the simulation: There is a beam inside a pipe, and air is introduced into the pipe. To allow air… --- ## [Recommended resources for introductory understanding of FSI and preCICE](https://precice.discourse.group/t/recommended-resources-for-introductory-understanding-of-fsi-and-precice/2280)
**Author:** [@abzrg](https://precice.discourse.group/u/abzrg)\ **Replies:** 2\ **Last updated:** [March 19, 2025, 5:22pm UTC](https://precice.discourse.group/t/recommended-resources-for-introductory-understanding-of-fsi-and-precice/2280 "2025-03-19T17:22:08Z")
I am looking for study resources such as books, papers, theses, tutorials, etc., to build an introductory to intermediate understanding of FSI and also precice. My goal is to gain enough confidence to apply this knowledg… --- ## [Accessing Bernhard Gatzhammer's dissertation](https://precice.discourse.group/t/accessing-bernhard-gatzhammers-dissertation/2135)
**Author:** [@poncetma](https://precice.discourse.group/u/poncetma)\ **Replies:** 4\ **Last updated:** [February 13, 2025, 10:56am UTC](https://precice.discourse.group/t/accessing-bernhard-gatzhammers-dissertation/2135 "2025-02-13T10:56:24Z")
Hi there, I am new to preCICE and would like to read Bernhard Gatzhammer’s PhD dissertation. Unfortunately, the link provided in the Literature Guide does not work, and I have not been able to find the pdf elsewhere (onl… --- ## [Feedback on guidelines for application cases (preECO project)](https://precice.discourse.group/t/feedback-on-guidelines-for-application-cases-preeco-project/2126)
**Author:** [@Makis](https://precice.discourse.group/u/Makis)\ **Replies:** 1\ **Last updated:** [September 27, 2024, 9:19am UTC](https://precice.discourse.group/t/feedback-on-guidelines-for-application-cases-preeco-project/2126 "2024-09-27T09:19:22Z")
Find the guidelines for application cases on the preCICE website: How do these fit into your project? Can you imagine reaching the gold level? How can we help you, and what do you think we should add/remove/change? R… --- ## [Feedback on guidelines for adapters (preECO project)](https://precice.discourse.group/t/feedback-on-guidelines-for-adapters-preeco-project/2125)
**Author:** [@Makis](https://precice.discourse.group/u/Makis)\ **Replies:** 1\ **Last updated:** [September 27, 2024, 9:18am UTC](https://precice.discourse.group/t/feedback-on-guidelines-for-adapters-preeco-project/2125 "2024-09-27T09:18:00Z")
Find the guidelines for adapters on the preCICE website: How do these fit into your project? Can you imagine reaching the gold level? How can we help you, and what do you think we should add/remove/change? --- ## [Calculix has a memory allocation error](https://precice.discourse.group/t/calculix-has-a-memory-allocation-error/1571)
**Author:** [@Phoenix](https://precice.discourse.group/u/Phoenix)\ **Replies:** 1\ **Last updated:** [September 20, 2023, 10:41am UTC](https://precice.discourse.group/t/calculix-has-a-memory-allocation-error/1571 "2023-09-20T10:41:57Z")
I used \*restart several times in a program,read and run the calculix program several times, and finally got an ERROR: \*ERROR in u\_calloc: error allocating memory variable=nodempc, file=ccx\_2.21.c, line=279, num=-2142496… --- ## [preCICE workshop 2024](https://precice.discourse.group/t/precice-workshop-2024/1462)
**Author:** [@dprakash](https://precice.discourse.group/u/dprakash)\ **Replies:** 3\ **Last updated:** [August 9, 2023, 11:35am UTC](https://precice.discourse.group/t/precice-workshop-2024/1462 "2023-08-09T11:35:37Z")
When will the workshop be held in 2024? What are the eligibility criteria, and are any scholarships offered for the workshop? --- ## [preCICE Workshop 2021: Introduce yourself!](https://precice.discourse.group/t/precice-workshop-2021-introduce-yourself/447)
**Author:** [@Makis](https://precice.discourse.group/u/Makis)\ **Replies:** 38\ **Last updated:** [February 23, 2021, 8:29am UTC](https://precice.discourse.group/t/precice-workshop-2021-introduce-yourself/447 "2021-02-23T08:29:45Z")
:wave: there! We want to make the preCICE Workshop 2021 as interactive as possible, and we thought we could combine the synchronous videoconference sessions with the “take-your-time” power of Discourse. In this topic, … --- ## [I was asked to try a Pull Request. How can I do that?](https://precice.discourse.group/t/i-was-asked-to-try-a-pull-request-how-can-i-do-that/38)
**Author:** [@Makis](https://precice.discourse.group/u/Makis)\ **Replies:** 2\ **Last updated:** [October 12, 2019, 12:41pm UTC](https://precice.discourse.group/t/i-was-asked-to-try-a-pull-request-how-can-i-do-that/38 "2019-10-12T12:41:38Z")
A preCICE developer told me to try a “PR” (Pull Request). What is this and how do I try it?