mbarrier_test_wait[type: AnyType](shared_mem: UnsafePointer[type, shared_mem.origin, address_space=AddressSpace.SHARED], state: Int) -> Bool

Test if all threads have arrived at the memory barrier.

Non-blocking check to see if all participating threads have reached the barrier. Only supported on NVIDIA GPUs.

Parameters:

• ​type (AnyType): The data type stored at the barrier location.

Args:

• ​shared_mem (UnsafePointer): Pointer to the shared memory barrier.
• ​state (Int): Expected state of the memory barrier.

Returns:

Bool: True if all threads have arrived, False otherwise.