The CUDA Handbook: A Comprehensive Guide to GPU Programming by Nicholas Wilt

Author:Nicholas Wilt
Language: eng
Format: epub
Publisher: Addison-Wesley Professional
Published: 2013-02-27T16:00:00+00:00

8.1.2. Local Memory

Local memory is used to spill registers and also to hold local variables that are indexed and whose indices cannot be computed at compile time. Local memory is backed by the same pool of device memory as global memory, so it exhibits the same latency characteristics and benefits as the L1 and L2 cache hierarchy on Fermi and later hardware. Local memory is addressed in such a way that the memory transactions are automatically coalesced. The hardware includes special instructions to load and store local memory: The SASS variants are LLD/LST for Tesla and LDL/STL for Fermi and Kepler.

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