HEC-RAS question about core allocation in large 2D models.
I’m currently working on some very large models built by another company that the county will be using as a baseline going forward. One of these models has a 2D meshes with over 730,000 cells. I’ve been trying to get it running in version 7.0.1 (built in version 5.0.7) I’ve fixed the various issues but the model kept crashing and giving exit code 157 about 4 to 9 hours into the simulation. My theory was that the problem was a hardware limitation on the RAM. Still, I’ve been making little changes here and there but not seeing much impact until this morning. I needed to check another model and went ahead with another attempt to run the problem model just to see if it did any better. I ran them at the same time on the same computer. Now the problem model has made it over the 24 hour mark and is still going. I’ve googled this and see that the second model may be adjusting the core allocation, priorities, etc.
My question is if anyone knows if it is possible to make this happen without running the second model in parallel with the first. Can I just limit the 2D meshes calculations to 4 cores and get it working?