FLASH_LU_piv_solve.c File Reference

(r)

Functions
FLA_Error	FLASH_LU_piv_solve (FLA_Obj A, FLA_Obj p, FLA_Obj B, FLA_Obj X)

---

Function Documentation

FLA_Error FLASH_LU_piv_solve	(	FLA_Obj	A,
		FLA_Obj	p,
		FLA_Obj	B,
		FLA_Obj	X
	)

References FLA_Check_error_level(), FLA_LU_piv_solve_check(), FLA_ONE, FLASH_Apply_pivots(), FLASH_Copy(), and FLASH_Trsm().

{
  // Check parameters.
  if ( FLA_Check_error_level() >= FLA_MIN_ERROR_CHECKING )
    FLA_LU_piv_solve_check( A, p, B, X );

  FLASH_Copy( B, X );

  FLASH_Apply_pivots( FLA_LEFT, FLA_NO_TRANSPOSE, p, X );

  FLASH_Trsm( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_NO_TRANSPOSE,
              FLA_UNIT_DIAG, FLA_ONE, A, X );
  FLASH_Trsm( FLA_LEFT, FLA_UPPER_TRIANGULAR, FLA_NO_TRANSPOSE,
              FLA_NONUNIT_DIAG, FLA_ONE, A, X );

  return FLA_SUCCESS;
}