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