Module atomics 

Atomic operation reference implementations. Atomic operation semantics enforced by the parity engine.

GPU atomic instructions vary in memory ordering and return-value behavior across backends. This module exists to define one sequentially consistent, return-old-value semantics that every backend must match byte-for-byte.

Functions

apply

Apply one sequentially consistent atomic operation.

atomic_add

Return the old value and the value after atomic add.

atomic_and

Return the old value and the value after atomic bitwise AND.

atomic_compare_exchange

Return the old value and the value after atomic compare-exchange.

atomic_exchange

Return the old value and the replacement value for atomic exchange.

atomic_max

Return the old value and the value after atomic unsigned maximum.

atomic_min

Return the old value and the value after atomic unsigned minimum.

atomic_or

Return the old value and the value after atomic bitwise OR.

atomic_xor

Return the old value and the value after atomic bitwise XOR.