exact rational input?

[dimpase]

Is it possible to accept exact rational input?

If not, is there any limit on the size of integers one can have in .dat files?

[nakatamaho]

Hi dimpase! thanks for using SDPA-GMP

1. Unfortunately, not.
2. I've never tried. I tried over 100 decimal digits, and it was okay

[dimpase]

Oh well. In SPDs I have (very badly conditioned) I end up with errors in Cholesky factorisation saying something like "matrix ix not positive semidefinite".

Could it be that some precision is checked using the doubles rather than arbitrary precision?

[nakatamaho]

Hi dimpase,
Yes, you can control using 'precision' parameter in param.sdpa .

[dimpase]

No matter how big I make it, it seems not being enough. Perhaps I should really try huge values...

[nakatamaho]

Hi dimpase, could you please send me your logs to [email protected]?
thanks
Nakata Maho

[dimpase]

I will try to reproduce this on the hardware I have with me (I am on vacation, and do not have access to the machine I used to compute these). It might take a bit of time.