cuda atomic swap

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17 Jul 2019
1int atomicCAS(int* address, int compare, int val);
2//reads the 16-bit, 32-bit or 64-bit word old located at the address 
3//address in global or shared memory, computes 
4//(old == compare ? val : old) , and stores the result back to memory 
5//at the same address. These three operations are performed in one 
6//atomic transaction. The function returns old (Compare And Swap).
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