memory

How do I allocate more memory to an application?

With no information to work with , the short answer is " By adding more RAM to your computer. "

You will need to help us help you by providing at least the minimum of info..... what OS, what application, are you having any problems . In short ... where is your question coming from ?

Cheers ... McBie

allocating memory

Mac OS X v-10.7.5 Processor 2.2 GHz Intel core i7 Memory 4GB 1333 MHz DDR3

I don't think there is a way to do that anymore. It's handled by the system. It was possible until OS 9 but I don't think it has ever been possible in OS X.

As Sly says what you ask goes way back to Classic days, last century! More memory is the go but can't help further as you did not post model details. Hard to guess.

As others have mentioned, you don't, the OS X uses what it can use from what's installed, and it looks like you have a similar Mac to this that uses the same 1333 MHz DDR3 RAM, and they can use a Maximum RAM: 16 GB*.
MacBook Pro "Core i7" 2.2 15" Late 2011 Specs (Late 2011 15", MD318LL/A, MacBookPro8,2, A1286, 2563*) @ EveryMac.com