Try fluidfft 0.4.0rc1

.readthedocs.yml

@@ -5,15 +5,12 @@ build:
   tools:
     python: "3.11"
   apt_packages:
-    # workaround: bad fluidfft with false hard dependency to mpi4py
-    - libopenmpi-dev
     - graphviz
   jobs:
     post_create_environment:
       - pip install pdm pip -U
     post_install:
       - pdm use -f $READTHEDOCS_VIRTUALENV_PATH
-      - FLUIDFFT_TRANSONIC_BACKEND="python" pip install fluidfft
       - pdm sync -G doc -G fft -G test --no-self
       - pip install . --config-settings=setup-args=-Dtransonic-backend=python
 

Makefile

@@ -6,13 +6,15 @@ MPI_NUM_PROCS ?= 2
 .PHONY: black black_check clean clean_pyc clean_so cleantransonic coverage_short develop dist lint _report_coverage shortlog tests _tests_coverage tests_mpi
 
 develop: sync
-	pdm run pip install -e . -v --no-build-isolation --no-deps
 
 sync:
-	pdm sync --clean --no-self
+	pdm sync --clean
+
+install_fluidfft_plugins:
+	pdm run pip install fluidfft-fftw fluidfft-fftwmpi fluidfft-mpi_with_fftw
 
 lock:
-	pdm lock -G :all
+	pdm lock
 
 clean_so:
 	find fluidsim -name "*.so" -delete

fluidsim/operators/test/test_operators3d.py

@@ -17,7 +17,7 @@ def xfail_if_fluidfft_class_not_importable(func):
     if not FLUIDFFT_INSTALLED or "FLUIDSIM_TYPE_FFT" not in os.environ:
         return func
 
-    from fluidfft.fft3d import import_fft_class
+    from fluidfft import import_fft_class
 
     try:
         import_fft_class(os.environ["FLUIDSIM_TYPE_FFT"])

noxfile.py

@@ -36,20 +36,11 @@ def _test(session, env=None):
 def test_without_fft_and_pythran(session):
     command = "pdm sync --clean -G dev -G test -G mpi --no-self"
     session.run_always(*command.split(), external=True)
-    session.install(
-        ".", "-C", "setup-args=-Dtransonic-backend=python", "--no-deps"
-    )
+    session.install(".", "-C", "setup-args=-Dtransonic-backend=python", "--no-deps")
 
     _test(session, env={"TRANSONIC_BACKEND": "python", "TRANSONIC_NO_REPLACE": "1"})
 
 
-def _install_fluidfft(session):
-    # first install fluidfft without Pythran compilation
-    session.install(
-        "fluidfft", "--no-deps", env={"FLUIDFFT_TRANSONIC_BACKEND": "python"}
-    )
-
-
 time_last = 0
 
 
@@ -66,10 +57,6 @@ def print_times(task: str):
         print(f"Session started since {timedelta(seconds=time_now - time_start)}")
         time_last = time_now
 
-    _install_fluidfft(session)
-
-    print_times("installing fluidfft")
-
     command = "pdm sync --clean -G dev -G test -G fft -G mpi --no-self"
     session.run_always(*command.split(), external=True)
 
@@ -82,14 +69,19 @@ def print_times(task: str):
 
     print_times("installing fluidsim")
 
+    short_names = ["fftw", "mpi_with_fftw", "fftwmpi"]
+    if "GITLAB_CI" in os.environ:
+        short_names.extend(["pfft", "p3dfft"])
+    for short_name in short_names:
+        session.install(f"fluidfft-{short_name}")
+
     _test(session)
 
     print_times("tests")
 
 
 @nox.session
 def doc(session):
-    _install_fluidfft(session)
     command = "pdm sync -G doc -G fft -G test --no-self"
     session.run_always(*command.split(), external=True)
     session.install(".", "-C", "setup-args=-Dtransonic-backend=python", "--no-deps")