LArray can create arrays with more than 2G(2^31) entries. 2^31 -1 (2G) is the limitation of the default Java/Scala array size, because these arrays use 32-bit signed integer (int) as indexes. LArray uses long type indexes of 64-bit signed integers to resolve this limitation. For example, the entire human genome data (3GB) can be stored in LArray. LArray can be released immediately from the memory.
