marsaev

@kiendangtor I apologize for the slow response. This matrix is quite small to exploit full GPU power. Would you consider direct solve approach here? Other than that, configurations from provided...

Understood, thanks. Right, starting with smaller matrix is often easier to put aside what's clearly not working. Just wanted to clarify some things 1) `Do we need to provide graph...

Can I ask you how you constructed this matrix? There are a lot of zeros on the diagonal, which doesn't play well with typical smoothers which scale by inverted diagonal...