Fix file formatting

Author: ekatralis

examples/solve_sparse_system.py

@@ -1,3 +1,8 @@
+# copyright ################################# #
+# This file is part of the Xobjects Package.  #
+# Copyright (c) CERN, 2021.                   #
+# ########################################### #
+
 import xobjects as xo
 import scipy.sparse as sp
 import numpy as np
@@ -17,7 +22,7 @@
 solver(A) # Performs decomposition/factorization
 solver.solve(b) # Solves Ax = b using precomputed factors
 
-For optimal performance accross backends b should be a column-major (F Contiguous)
+For optimal performance across backends b should be a column-major (F Contiguous)
 array or vector.
 
 The intended interface for this module is:
@@ -34,7 +39,7 @@
 For development and convenience purposes xo.sparse provides the:
 xo.sparse.solvers module
 
-which provides the following options:
+which provides the following:
 xo.sparse.solvers.CPU.
     - scipysplu : Alias for scipy SuperLU 
     - KLUSuperLU : Alias for PyKLU

tests/test_sparse_solvers.py

@@ -1,3 +1,8 @@
+# copyright ################################# #
+# This file is part of the Xobjects Package.  #
+# Copyright (c) CERN, 2021.                   #
+# ########################################### #
+
 import numpy as np
 import scipy.sparse as sp
 import xobjects as xo

xobjects/sparse/_sparse.py

@@ -1,3 +1,8 @@
+# copyright ################################# #
+# This file is part of the Xobjects Package.  #
+# Copyright (c) CERN, 2021.                   #
+# ########################################### #
+
 import scipy.sparse
 from numpy import ndarray as nparray
 from typing import Optional, Literal, Union

xobjects/sparse/_test_helpers.py

@@ -1,3 +1,8 @@
+# copyright ################################# #
+# This file is part of the Xobjects Package.  #
+# Copyright (c) CERN, 2021.                   #
+# ########################################### #
+
 import numpy.linalg as npl
 import scipy.sparse.linalg as scspl
 from scipy.sparse import issparse

xobjects/sparse/solvers/CUDA/_cuDSSLU.py

@@ -1,3 +1,8 @@
+# copyright ################################# #
+# This file is part of the Xobjects Package.  #
+# Copyright (c) CERN, 2021.                   #
+# ########################################### #
+
 import cupy as cp
 import cupyx.scipy.sparse as sp
 import nvmath

xobjects/sparse/solvers/CUDA/_luLU.py

@@ -1,3 +1,8 @@
+# copyright ################################# #
+# This file is part of the Xobjects Package.  #
+# Copyright (c) CERN, 2021.                   #
+# ########################################### #
+
 import cupy as _cupy
 import numpy as _numpy
 import cupyx.scipy.sparse

xobjects/sparse/solvers/_abstract_solver.py

@@ -1,3 +1,8 @@
+# copyright ################################# #
+# This file is part of the Xobjects Package.  #
+# Copyright (c) CERN, 2021.                   #
+# ########################################### #
+
 from abc import ABC, abstractmethod
 
 class SuperLUlikeSolver(ABC):