A memory barrier is a special processor instruction that imposes restrictions on the order in which memory accesses become visible to other processors/cores in a multi-processor or multi-core system.
Ok, I have been reading the following Qs from SO regarding x86 CPU fences (LFENCE, SFENCE and MFENCE): Does it …
multithreading assembly x86 cpu memory-fencesUnlike barrier() (which I think I understand), mem_fence() does not affect all items in the work group. The OpenCL …
opencl gpgpu memory-barriers barrier memory-fencesAssuming that aligned pointer loads and stores are naturally atomic on the target platform, what is the difference between this: // …
c++ c++11 atomic memory-fences