Hi,

I have a compressed_matrix column oriented matrix. I reead a Harwell Boeing file, so I can know its sizes and nbrNon0Elements, as well

the index arrays and the value data.

So I create my matrix, and obtain references to the 3 arrays which I fill manually (i.e. by reading the file).

Upon inspection of the matrix arrays, I see everything to be OK ( as expected) but the subscript operator gives 0’s.

Also it appears the the iterators are invalidated – not sure about this though.

Apparently there has to be a mechanism to  “lock” things down.

What do I need to do ?

TIA

Petros