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[Getfem-users] row_matrix resizing in GMM

From: Vladimir
Subject: [Getfem-users] row_matrix resizing in GMM
Date: Tue, 8 Jan 2008 10:46:34 +0300
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I'm using row_matrix in an algorithm that doesn't knows row count in advance 
and resizes row_matrix each time it wants to add a row. The 
row_matrix::resize() algorithm calls gmm::resize for each row of the matrix 
even if the column count is not changed. This can be easily optimized by 
adding resize_rows() method or by modifying resize() method as follows:

  template<typename V> void row_matrix<V>::resize(size_type m, size_type n) {
    if(n != nc) {
        for (size_type i=0; i < m; ++i) gmm::resize(li[i], n);
        nc = n;
    } else {
        int m0 = li.size();
        for (size_type i=m0; i < m; ++i) gmm::resize(li[i], n);

The same could be done for col_matrix. Can such patch be accepted ?

Thanks for your attention.

      Best Regards,

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