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.. meta::
:description: rocSHMEM intra-kernel networking runtime for AMD dGPUs on the ROCm platform.
:keywords: rocSHMEM, API, ROCm, documentation, HIP, Networking, Communication
.. _rocshmem-api-memory-ordering:
---------------------------
Memory ordering routines
---------------------------
ROCSHMEM_FENCE
--------------
.. cpp:function:: __device__ void rocshmem_fence()
.. cpp:function:: __device__ void rocshmem_fence(int pe)
.. cpp:function:: __device__ void rocshmem_ctx_fence(rocshmem_ctx_t ctx)
.. cpp:function:: __device__ void rocshmem_ctx_fence(rocshmem_ctx_t ctx, int pe)
:param ctx: Context with which to perform this operation.
:param pe: Destination ``pe``.
:returns: None.
**Description:**
This routine ensures order between messages in this context to follow OpenSHMEM semantics.
ROCSHMEM_QUIET
--------------
.. cpp:function:: __device__ void rocshmem_ctx_quiet(rocshmem_ctx_t ctx)
.. cpp:function:: __device__ void rocshmem_quiet()
:param ctx: Context with which to perform this operation.
:returns: None.
**Description:**
This routine completes all previous operations posted to this context.
ROCSHMEM_PE_QUIET
-----------------
.. cpp:function:: __device__ void rocshmem_ctx_pe_quiet(shmem_ctx_t ctx, const int *target_pes, size_t npes)
.. cpp:function:: __device__ void rocshmem_pe_quiet(const int *target_pes, size_t npes)
:param ctx: Context with which to perform this operation.
:param target_pes: Address of target PE array where the operations need to be completed
:param npes: The number of PEs in the target PE array
:returns: None.
**Description:**
This routine completes all previous operations posted to this context
for the PEs in the `target_pes` array.