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◆ z_dense_csr()
| void z_dense_csr |
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int |
m, |
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int |
n, |
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int |
lda, |
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const doublecomplex |
a[], |
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int |
maxnnz, |
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doublecomplex |
val[], |
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int |
rowptr[], |
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int |
colind[], |
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int |
base, |
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int * |
info |
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Dense matrix -> CSR (Complex matrices)
- Purpose
- This routine converts the dense matrix to the sparse matrix in CSR format.
- Parameters
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| [in] | m | Number of rows of the matrix. (m >= 0) (if m = 0, returns without computation) |
| [in] | n | Number of columns of the matrix. (n >= 0) (if n = 0, returns without computation) |
| [in] | lda | Leading dimension of array a[][]. (lda >= m) |
| [in] | a[][] | Array a[la][lda] (la >= n)
Input matrix. |
| [in] | maxnnz | Size of arrays val[] and colind[] (must be greater than the number of nonzero elements of the input matrix). (maxnnz > 0) |
| [out] | val[] | Array val[lval] (lval >= maxnnz)
Values of nonzero elements of output matrix in CSR format. |
| [out] | rowptr[] | Array rowptr[lrowptr] (lrowptr >= m + 1)
Row pointers of output matrix in CSR format. |
| [out] | colind[] | Array colind[lcolind] (lcolind >= maxnnz)
Column indices of output matrix in CSR format. |
| [in] | base | Indexing of rowptr[] and colind[].
= 0: Zero-based (C style) indexing: Starting index is 0.
= 1: One-based (Fortran style) indexing: Starting index is 1. |
| [out] | info | = 0: Successful exit.
= i < 0: The (-i)-th argument is invalid.
= 10: Insufficient outout array size (maxnnz is too small). |
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