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EXPLICIT MEMORY FENC(3clc) OpenCL Manual EXPLICIT MEMORY FENC(3clc)

Explicit_Memory_Fence_Functions - Click an item in the table below for details about that function.

mem_fence(3clc) Orders loads and stores of a work-item executing a kernel
read_mem_fence(3clc) Read memory barrier that orders only loads
write_mem_fence(3clc) Write memory barrier that orders only stores

These functions provide ordering between memory operations of a work-item.

OpenCL Specification[1]

barrier(3clc)

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1.
OpenCL Specification
page 275, section 6.12.9 - Explicit Memory Fence Functions
02/03/2019 The Khronos Group