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| integer(kind(hipsparse_status_success)) function | hipsparsescsrilu02_analysis_ (handle, m, nnz, descra, csrsortedvala, csrsortedrowptra, csrsortedcolinda, myinfo, policy, pbuffer) |
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| integer(kind(hipsparse_status_success)) function | hipsparsescsrilu02_analysis_rank_0 (handle, m, nnz, descra, csrsortedvala, csrsortedrowptra, csrsortedcolinda, myinfo, policy, pbuffer) |
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| integer(kind(hipsparse_status_success)) function | hipsparsescsrilu02_analysis_rank_1 (handle, m, nnz, descra, csrsortedvala, csrsortedrowptra, csrsortedcolinda, myinfo, policy, pbuffer) |
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hipsparseXcsrilu02_analysis performs the analysis step for hipsparseScsrilu02 "hipsparseXcsrilu02()". It is expected that this function will be executed only once for a given matrix and particular operation type.
- Note
- If the matrix sparsity pattern changes, the gathered information will become invalid.
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This function is non-blocking and executed asynchronously with respect to the host. It can return before the actual computation has finished.
- Parameters
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| [in] | handle | - handle to the hipSPARSE library context queue. |
| [in] | m | - number of rows of the sparse CSR matrix. |
| [in] | nnz | - number of non-zero entries of the sparse CSR matrix. |
| [in] | descrA | - descriptor of the sparse CSR matrix. |
| [in] | csrSortedValA | - array of nnz elements of the sparse CSR matrix. |
| [in] | csrSortedRowPtrA | - array of m+1 elements that point to the start of every row of the sparse CSR matrix. |
| [in] | csrSortedColIndA | - array of nnz elements containing the column indices of the sparse CSR matrix. |
| [out] | myInfo | - structure that holds the information collected during the analysis step. |
| [in] | policy | - HIPSPARSE_SOLVE_POLICY_NO_LEVEL or HIPSPARSE_SOLVE_POLICY_USE_LEVEL. |
| [in] | pBuffer | - temporary storage buffer allocated by the user. |
- Return values
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| HIPSPARSE_STATUS_SUCCESS | the operation completed successfully. |
| HIPSPARSE_STATUS_INVALID_VALUE | handle, m, nnz, descrA, csrSortedValA, csrSortedRowPtrA, csrSortedColIndA, info, or pBuffer pointer is invalid. |
| HIPSPARSE_STATUS_INTERNAL_ERROR | an internal error occurred. |