I don't see a good reason that the 4th run should blow up

No more virtual memory? 10% non-zero elements are assumed by default. Auto managed PF is 3 x RAM max. I see "Commit size" close to 30 GB for process when gsl_spmatrix_alloc(80000,80000), can go no further. My 8 GB RAM (less than 6 is free) + 24 GB PF sums up OK to this "30". My guess is you have 16 GB + same auto-managed PF, and "Commit size" would be ~56 GB or so for 95K by 95K matrix.

In reply to Re^9: Math::GSL::SparseMatrix is broken if installed on latest 5.32.1.1 "Strawberry Perl PDL edition", whom to report this issue to? [OT] by Anonymous Monk
in thread Math::GSL::SparseMatrix is broken if installed on latest 5.32.1.1 "Strawberry Perl PDL edition", whom to report this issue to? by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.