Construct Matrix Memory Pool object.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| integer(kind=c_int), | intent(in) | :: | columns | Number of columns in the matrix.  | 
  
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| integer(kind=c_int), | intent(in) | :: | rows | Number of rows in the matrix.  | 
  
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| real(kind=NTREAL), | intent(in), | optional | :: | sparsity_in | Estimated sparsity (optional).  | 
  
The matrix to construct.