Thread: Allocating a number of large 3d arrays in C

Now, do you have an OS and a machine capable of dealing with 3GB+ of allocated memory?
32-bit windows won't do it for sure.

Running this on Vista Ultimate 64 and with 4GB of Ram, I've also tried this on a Ubuntu 64 machine with the same, no dice on either machine.

Firstly, thanks for all the feedback folks.

Why do you need 30 of them at the same time?

I'm running an electromagnetic simulation. It's a 'leapfrog' algorithm, so each iteration of my code relies on the previous one and all arrays are required.

Are you actually compiling for 64-bit, or are you using a 32-bit executable?

Also, with 4GB of RAM, how much ACTUAL RAM do you have, and how much swap-space?

I don't know how to compile for 64 bit, I'm rusty with c. Can anyone help me with this?

I can use up to 4.029 GB of Ram, according to the task manager.
Page File is 4.039 GB

I might give MAT's linked list idea a go and see what happens.