Learning Forum

[moeenkhurram]

Hi

can anyone please. explain me these two terms. 

[peteroznewman]

in-core means the solver can hold the entire matrix in RAM for solving.

out-of-core means the solver cannot hold the entire matrix in RAM for solving. Instead it does the solving on smaller parts of the matrix in RAM by writing the entire matrix to disk storage. That means it spends time reading and writing a lot of data to the disk to make its way through the entire matrix. This takes more time to solve.

[moeenkhurram]

Hi peter , thank you for the reply.

How to know whether is in core or out of core ?

 

I am using 122gb ram + 170 gb virtual memory . Also why only 56gb is allocated to sover? 

 

 

[peteroznewman]

Later on in the output listing it says what method it chose to use for solving.

Don't worry about the memory allocated to the solver.

[kjohnson10]

Please how did you get to this image?

I'm trying to figure out my memory issues, but I don't see anything like this.

 

-Kerry

[moeenkhurram]

its in solver output