I am running a simulation that deliberately uses a lot of memory. In fact, more than the available RAM and so the program should use swap space. However, after 60 GB of swap space are used, I get the following complaint from OS X 10.8.4:
OS X startup disk has no more space available for application memory
At this stage the RAM is fully used and virtual memory is used up to ~60 GBm as well as the swap, which Activity Monitor reports is around 60 GB.
I tried this program on two different Macs with the same outcome and the same critical amount of swap where everything goes wrong.
- Mac Pro
- Two quad core 2.7 GHz processors
- 32 GB of RAM
- 1.3 TB of free hard-disk space
I checked my handcoded C++ program for leaks using Xcode and I understand where the RAM usage is coming from.
I would be glad if anybody has a suggestion what the root of my problem is.