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Fix return types in RBF interpolation functions #880

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Merged
msimberg merged 2 commits into from
Oct 10, 2025
Merged

Fix return types in RBF interpolation functions #880

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29f1efa
Fix return types in RBF interpolation functions
msimberg Sep 22, 2025
b94e91b
Use tuples instead of lists for uv param and return types in rbf inte…
msimberg Sep 24, 2025
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8 changes: 4 additions & 4 deletions model/common/src/icon4py/model/common/interpolation/rbf_interpolation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -227,7 +227,7 @@ def _compute_rbf_interpolation_coeffs(
scale_factor: ta.wpfloat,
horizontal_start: gtx.int32,
array_ns: ModuleType = np,
) -> tuple[data_alloc.NDArray, data_alloc.NDArray]:
) -> list[data_alloc.NDArray]:
rbf_offset_shape_full = rbf_offset.shape
rbf_offset = rbf_offset[horizontal_start:]
num_elements = rbf_offset.shape[0]
Expand Down Expand Up @@ -346,7 +346,7 @@ def index_offset(f):
rbf_vec_coeff_np[j][i + horizontal_start, valid_neighbors] = sla.cho_solve(
z_diag_np, rhs_np[j][i, valid_neighbors]
)
rbf_vec_coeff = tuple([array_ns.asarray(x) for x in rbf_vec_coeff_np])
rbf_vec_coeff = [array_ns.asarray(x) for x in rbf_vec_coeff_np]

# Normalize coefficients
for j in range(num_zonal_meridional_components):
Expand Down Expand Up @@ -399,7 +399,7 @@ def compute_rbf_interpolation_coeffs_cell(
array_ns=array_ns,
)
assert len(coeffs) == 2
return coeffs
return tuple(coeffs)


def compute_rbf_interpolation_coeffs_edge(
Expand Down Expand Up @@ -483,4 +483,4 @@ def compute_rbf_interpolation_coeffs_vertex(
array_ns=array_ns,
)
assert len(coeffs) == 2
return coeffs
return tuple(coeffs)