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51 lines
1.0 KiB
Matlab
51 lines
1.0 KiB
Matlab
% ********************************************************************
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% Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
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% ********************************************************************
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function A=fixmat(B,diagval)
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%{
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-------------------------------------------------------------
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This function sets all diagonal entries of B to 'diagval'
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without changing the number of nonzero entries in the
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corresponding columns of the matrix.
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A = fixmat(B, diagval)
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inputs:
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B the original matrix (sparse matrix)
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diagval the value for the diagonal entries
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outputs:
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A the modified resulting matrix (sparse matrix)
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(This script is for internal use only. It is not part of
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rocSOLVER library interface and could change or be removed
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without any notice)
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-------------------------------------------------------------
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%}
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n = size(B,1);
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A=full(B);
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for j=1:n,
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if (A(j,j) == 0),
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for i=1:n,
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if (A(i,j) != 0),
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A(i,j) = 0;
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break;
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end;
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end;
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end;
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A(j,j)=diagval;
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end;
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A=sparse(A);
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end
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