Data Error at pos 1

[scodyer]

I've been getting the following error after calling culaSgesv():

Data error at pos 2 (see the CULA Reference Manual for more information)

Q: Any idea what the data error is referencing?

Note: I looked through the CULA reference Manual, and the data error section sends you to Lapack's documentations.. which inevitably leads you nowhere.

Thank you for any insight you might have.

[kyle]

A data error in this routine indicates a singular matrix with a zero on the diagonal.

[scodyer]

Okay, that is what I was guessing. Thank you.

[john]

It's probably more than a zero on the diagonal, as pivoting can avoid some of them. You have either two linearly dependent rows and/or a row or column of all zeros.