ran out of space

[sanjianke]

hi there,

I have a huge 3D soil model with 288000 nodes and 303646 elements
(SSPbrickUp type). I tried to run it, but in modeling procedure, I
received a warning message "Matrix::Matrix : Ran out of memory
on init of size 576." I doubted the problem comes from the element
type, then I switched to brickUp element, but it ended up with another
similar warning "vector:vector: Ran out of memory creating
vector of size 6". Is it that there is a limitation of OpenSees for
modeli and analyzing? But it seems that I can successfully create all
nodes. Or is it because my computer's internal storage is not enough to build such
a big model? What should I do to fix it, please help me.

Thanks in advance and best wishes.

[fmk]

that is a large model and you are runnng out of memory. if running on a windows machine it might work on a linux machine (you can use NEEShub).
the windows binary is 32 bit, the linux one on the hub is 64bit.

it is large and you will probably need to go parallel.

if the problem goes away on NEEShb try using OpenSeesSP with the Mumps solver.
if the problem still occurs:
find out if the problem occurs during the model creation or during the analysis. simply put a puts statement before the analyze.
if it fails during the analyze you can still try using OpenSeesSP, if it fails in model creation you are going to have to build the model in parallel using OpenSeesMP.