hipsparsexbsric02_zeropivot Interface Reference

• hipfort_hipsparse
• hipsparsexbsric02_zeropivot

Public Member Functions | List of all members

hipfort_hipsparse::hipsparsexbsric02_zeropivot Interface Reference

Incomplete Cholesky factorization with 0 fill-ins and no pivoting using BSR storage format. More...

Public Member Functions
integer(kind(hipsparse_status_success)) function	hipsparsexbsric02_zeropivot_ (handle, myInfo, position)

Detailed Description

Incomplete Cholesky factorization with 0 fill-ins and no pivoting using BSR storage format.

hipsparseXbsric02_zeroPivot returns HIPSPARSE_STATUS_ZERO_PIVOT, if either a structural or numerical zero has been found during hipsparseXbsric02_analysis() or hipsparseXbsric02() computation. The first zero pivot \(j\) at \(A_{j,j}\) is stored in position, using same index base as the BSR matrix.

position can be in host or device memory. If no zero pivot has been found, position is set to -1 and HIPSPARSE_STATUS_SUCCESS is returned instead.

Note

If a zero pivot is found, position=j means that either the diagonal block A(j,j) is missing (structural zero) or the diagonal block A(j,j) is not positive definite (numerical zero).

hipsparseXbsric02_zeroPivot is a blocking function. It might influence performance negatively.

Member Function/Subroutine Documentation

◆ hipsparsexbsric02_zeropivot_()

integer(kind(hipsparse_status_success)) function hipfort_hipsparse::hipsparsexbsric02_zeropivot::hipsparsexbsric02_zeropivot_	(	type(c_ptr), value	handle,
		type(c_ptr), value	myInfo,
		integer(c_int)	position
	)

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The documentation for this interface was generated from the following file:

• hipfort_hipsparse.f