Use conda-forge lapack with acelerate as blas backend

gistfile1.txt

git clone https://github.com/isuruf/vecLibFort
cd vecLibFort

conda create -n numpy pytest hypothesis numpy "libblas=*=*netlib" --yes
conda activate numpy
clang -O3  -c -o vecLibFort.o vecLibFort.c
clang -shared -o libblas.3.dylib  vecLibFort.o   -Wl,-reexport_library,$(xcrun -show-sdk-path)/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.tbd
codesign -s - -f libblas.3.dylib
rm $CONDA_PREFIX/lib/libblas.3.dylib
rm $CONDA_PREFIX/lib/libcblas.3.dylib
cp libblas.3.dylib $CONDA_PREFIX/lib/libblas.3.dylib
cp libblas.3.dylib $CONDA_PREFIX/lib/libcblas.3.dylib

python -c "import numpy; numpy.test()"

I noticed that I had two nested conda env in the previous run (the sklearn-0241 env nested under my dev env). Maybe that was the cause of the problem...

Or maybe I installed compilers in sklearn-0241 after the creation and activation of sklearn-0241 without reactivating it. I cannot remember.

I get AssertionErrors from multiple important routines using this on my M1 mac. However from what I have been reading numpy and scipy blocked the accelerate backend due to numerical issues.

=============================== short test summary info ================================ FAILED core/tests/test_ufunc.py::TestUfuncGenericLoops::test_unary_PyUFunc_O_O_method_full[reciprocal] FAILED f2py/tests/test_array_from_pyobj.py::TestSharedMemory::test_in_from_2casttype[LONGDOUBLE] FAILED f2py/tests/test_array_from_pyobj.py::TestSharedMemory::test_f_in_from_23casttype[LONGDOUBLE] FAILED f2py/tests/test_array_from_pyobj.py::TestSharedMemory::test_c_in_from_23casttype[LONGDOUBLE] FAILED linalg/tests/test_linalg.py::TestSVDHermitian::test_herm_cases - AssertionErro... FAILED linalg/tests/test_linalg.py::TestPinvHermitian::test_herm_cases - AssertionErr... FAILED linalg/tests/test_linalg.py::TestEighCases::test_herm_cases - AssertionError: ... FAILED linalg/tests/test_linalg.py::TestCholesky::test_basic_property - numpy.linalg.... FAILED ma/tests/test_core.py::TestMaskedArrayInPlaceArithmetics::test_inplace_floor_division_scalar_type FAILED ma/tests/test_core.py::TestMaskedArrayInPlaceArithmetics::test_inplace_floor_division_array_type 10 failed, 12457 passed, 103 skipped, 1208 deselected, 19 xfailed, 3 xpassed, 16 warnings in 98.77s (0:01:38)