Learning Forum

[sarbakhshian]

Hello

i'm doing a two way coupled analysis with hyper elastic material and it seems Transient-Structural is running in the out-of-core memory mode. 

the solution information gives me the info below:

Memory allocated for solver              =  1166.719 MB
Memory required for in-core solution     =  4440.028 MB
Memory required for out-of-core solution =  1073.300 MB

even though i'm using a lap top with 8gb of RAM which almost 4gb of it is being used by windows, but here i'm having only 1gb of allocated RAM for the solver. Is there any way to increase the allocated memory? 

I have tried to customize the memory for Mechanical APDL solver from Tools> Solver Process Settings but it doesn't seem to work for me.

[peteroznewman]

The best way to have more memory available for ANSYS is to upgrade the laptop to 16 or 32 GB of RAM, if the motherboard can handle that.

[sarbakhshian]

thank you very much for the answer. So there is no way to some how customize the memory being used by transient-structural

[peteroznewman]

ANSYS estimates it needs 4.4 GB of free memory. That has to be a contiguous block. But it also has to have both the Mechanical APDL solver and the Fluent solver in memory. An that is just an estimate. If the solver needs to Pivot the matrix, it needs even more memory. There is a way to force it to run in-core, but when it runs out of memory, the solver just crashes. Don't waste your time with that. Install more RAM and add a SSD if your are using a HDD for storage. That will also reduce your wait time.

[sarbakhshian]

Thank you very much for your advice, i just changed the system as you recommended and now i'm facing another serious problem which i posted it here:

/forum/forums/topic/converging-problem-with-hyper-elastic-material/

Hope to find the solution very soon