SIDL_C_INLINE_DECL int32_t bHYPRE_SStructParCSRMatrix_SetSymmetric ( bHYPRE_SStructParCSRMatrix self, int32_t part, int32_t var, int32_t to_var, int32_t symmetric, sidl_BaseInterface *_ex)

Define symmetry properties for the stencil entries in the matrix

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Define symmetry properties for the stencil entries in the matrix. The boolean argument symmetric is applied to stencil entries on part part that couple variable var to variable to_var. A value of -1 may be used for part, var, or to_var to specify ``all''. For example, if part and to_var are set to -1, then the boolean is applied to stencil entries on all parts that couple variable var to all other variables.

By default, matrices are assumed to be nonsymmetric. Significant storage savings can be made if the matrix is symmetric.

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