Choosing a GPU workstation

I am working on a finite element analysis. I solve a linear system of equations of a large-sized (e.g., 10^7 by 10^7) sparse square matrix. I am planning to solve it by using MATLAB and GPU. Can MATLAB gpuArray solve such a large sparse square matrix by using backslash (\)? If yes, I am looking for a GPU-workstation configuration to solve such a problem with budget of $6,000. Could you recommend a GPU workstation specification for me? I am not familiar with how to build a GPU workstation.

I found the following company websites:

https://www.microway.com

https://bizon-tech.com/us/bizon-g3000

[Matt J]

How much memory does the matrix consume?

[CJ]

The size of a matrix in MATLAB determines how much RAM memory that I need to use in my CPU computing. I have usually used RAM from 5 GB to 40GB.

I found that a GPU processor has its own memory. Does GPU computing use the memory on a GPU processor or the other conventional, regular RAM memory that CPU uses? The answer for this question will help me to figure out the memory capacity on a GPU machine that I will have to purchase.

Answer 1

[Matt J]

Yes, the GPU uses its own local RAM to do computations (or at least that's when it is fast), so you should get a graphics card with as much memory as the computations will need.