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Release v3.5.0 #262

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f40889a
Fix passing MPI communicators Participant (#256)
fsimonis Apr 10, 2026
c86328a
Update .gitignore
MakisH Jul 18, 2026
b882481
Fix pre-commit errors
MakisH Jul 18, 2026
7b4e02a
Add a workflow to trigger the system tests (#259)
MakisH Jul 18, 2026
c712c01
Add main preCICE API guide to documentation navigation (#261)
Shubham-Padkonde Oct 1, 2026
f1bc08d
Bump version
IshaanDesai Nov 12, 2026
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13 changes: 13 additions & 0 deletions .github/workflows/run-system-tests.yml
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@@ -0,0 +1,13 @@
name: System tests

on:
pull_request:
types: [labeled]

jobs:
run-system-tests:
if: ${{ github.event.label.name == 'trigger-system-tests' }}
uses: precice/tutorials/.github/workflows/system-tests.yml@develop
with:
suites: python-bindings
build_args: PYTHON_BINDINGS_PR:${{ github.event.number }},PYTHON_BINDINGS_REF:${{ github.event.pull_request.head.sha }}
2 changes: 1 addition & 1 deletion .gitignore
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Expand Up @@ -6,4 +6,4 @@ docs/_build
docs/.docs_venv
*.egg-info
__pycache__
env
**/.venv
4 changes: 4 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -2,6 +2,10 @@

All notable changes to this project will be documented in this file.

## 3.5.0

* Fixed passing custom MPI communicators to the Participant https://github.com/precice/python-bindings/pull/256

## 3.4.0

* Added support for documentation rendering https://github.com/precice/python-bindings/pull/250
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8 changes: 4 additions & 4 deletions cyprecice/cyprecice.pyx
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Expand Up @@ -63,7 +63,7 @@ cdef class Participant:
Rank of the process
solver_process_size : int
Size of the process
communicator: mpi4py.MPI.Intracomm, optional
communicator: mpi4py.MPI.Comm, optional
Custom MPI communicator to use

Returns
Expand All @@ -82,10 +82,10 @@ cdef class Participant:
pass

def __cinit__ (self, solver_name, configuration_file_name, solver_process_index, solver_process_size, communicator=None):
cdef void* communicator_ptr
cdef size_t c_comm_addr;
if communicator:
communicator_ptr = <void*> communicator
self.thisptr = new CppParticipant.Participant (convert(solver_name), convert(configuration_file_name), solver_process_index, solver_process_size, communicator_ptr)
c_comm_addr = MPI._addressof(communicator)
self.thisptr = new CppParticipant.Participant (convert(solver_name), convert(configuration_file_name), solver_process_index, solver_process_size, <void*>c_comm_addr)
else:
self.thisptr = new CppParticipant.Participant (convert(solver_name), convert(configuration_file_name), solver_process_index, solver_process_size)
pass
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5 changes: 5 additions & 0 deletions docs/index.rst
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Expand Up @@ -8,3 +8,8 @@ The preCICE python bindings
precice
MigrationGuide
ReleaseGuide

.. toctree::
:caption: External pages:

Coupling API overview <https://precice.org/couple-your-code-api.html>
1 change: 1 addition & 0 deletions examples/solverdummy/.gitignore
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Expand Up @@ -3,3 +3,4 @@ venv
.idea
*.log
__pycache__
precice-profiling
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