I have 72 subexposures taken on two separate nights that I would like to integrate into a single stack. They have been calibrated and registered in PixInsight, so they all have the suffix "_c_d_r.fit". I close down all running programs except the OS X ActivityMonitor. I load the files into ImageIntegration with the settings shown on the attached screenshot. I click the global icon and watch the process begin on the Process Console. In the morning the console says "Integrating channel 1 of 3, 0 --> 3177: 24%".
It apparently stopped running during the night, but my click of the mouse reawakened it. The ActivityMonitor reads 660 MB of memory. After a few minutes it moves up over 30% and the memory used drops to 300 to 400 MB levels. I return a half hour later and the screen is dead. No amount of clicking or space bar pressing revives it. I do a hard shutdown, restart, and increase the buffer size to 152. Same result.
I didn't try increasing the stack size, but perhaps I should have. I was deterred by the Activity Monitor which tells me that 3 GB of memory was in use with no programs open. I have since learned that Mavericks has it's own way of handling memory, so that might not be a problem. Before trying this, I did my best to clear the system of all unnecessary daemons, .plists, and programs. In the past I have integrated as many as 32 subs. I could integrate this set in two batches and combine them, but PI should be able to take larger bites, shouldn't it? Does anyone have an insight into this difficulty?
