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Mojo function

shmem_signal_op

def shmem_signal_op(sig_addr: Pointer[UInt64, _safe=False], signal: UInt64, sig_op: Int32, pe: Int32)

The nvshmemx_signal_op operation atomically updates sig_addr with signal using operation sig_op on the specified PE. This operation can be used together with wait and test routines for efficient point-to-point synchronization.

Args:

sig_addr (Pointer[UInt64, _safe=False]): Symmetric address of the signal word to be updated.
signal (UInt64): The value used to update sig_addr.
sig_op (Int32): Operation used to update sig_addr with signal.
pe (Int32): PE number of the remote PE.