Topic: LEAP unable to use RAM effectively on modern machinesSubscribe | Previous | Next
Gregers Larsen 7/18/2017
I found an error that has plagued me for a while. When running even parts of an aggregated scenario (adding policy scenarios one by one). I simply run out of memory. Now I understand why. Having a modern Windows laptop, I have a x64 version of Windows on my machine, but LEAP only seems to exist in x86.
This means that my memory usage for LEAP on my PC is limited to just 4 GB of RAM, or 50% of my capacity. I am stuck. I cannot run anything in my model now because of this cap. Can anything be done?
Charlie Heaps 7/18/2017
HI Gregers,
Yes you are right - LEAP can run out of memory in cases where you have lots of scenarios, lots of regions or very large tree structures. The only way around this right now is to run just a few scenarios at a time. You are correct that the current version of LEAP is x86-based (i.e. 32 bit), so memory use is limited to 4GB (but in practice is less than 2 GB given the memory use by Windows and other programs running).
I am working on a 64 bit version that I hope will be released late this year and I am hopeful that this will eliminate these issues.
Best,
Charlie
Sebastian Cepeda 7/20/2017
We had a massive LEAP with 4 scenarios, 17 regions and several branches inside of it. Our strategy was to use the API, and to charge the data from a Visual Basic program. That allowed to solve the problem.