A helper routine that gathers the matrices in the same column into one.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(Matrix_lsr), | intent(in) | :: | local_matrix | The local matrix on each process. |
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| type(Matrix_lsr), | intent(inout) | :: | column_matrix | The final result. |
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| type(ProcessGrid_t), | intent(inout) | :: | process_grid | The process grid to operate on. |