gnu octave leasqr <-> matlab lsqr?

[Ericbarnhill]

Hi,

My Matlab pipeline almost has transitioned seamlessly to Octave! However, I use some code of a colleague that calls LSQR in Matlab.

I am wondering if Octave leasqr is comparable functionality?

It seems to run fine in the function with the same arguments so I would initially suspect so.

However Matlab lsqr finishes the problem in less than 3 seconds and leasqr runs out of memory, which makes me suspect they are not doing the same thing. It is perhaps a relatively large problem with a 3D image, but of course the matrices are sparse -- is this expected behavior?

Thank you so much for any insight,

Eric

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