With a matrix 460000x460000 and 32bytes per element(scalar+pointer), you would need need over 6.15TB of memory to hold it in Perl.

Even if you used C, and all your values were less than 256, you'd still need 197GB of memory.

Do you have such a machine?

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority". The enemy of (IT) success is complexity.
In the absence of evidence, opinion is indistinguishable from prejudice. Suck that fhit

In reply to Re: upper or lower triangular matrix to full by BrowserUk
in thread upper or lower triangular matrix to full by savita

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