[julia-users] Re: big matrices in Julia

[Andreas Lobinger]

If i read your example correctly, you are asking for a matrix 
size=65600x65600 of Float64 which is roughly 32GB. My first order 
assumption is, that julia asks the unterlying OS about getting this memory 
(btw: as a single block). It would be more intersting what actually your OS 
supports as continuos memory allocation (read as: julia cannot do magic on 
your computer). You can think about using something shorter than Float64 or 
build some infrastructure to put all your upper diagonal into a vector and 
deal with the indices.