UCX Notified Communication - #20

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joe-explr wants to merge 34 commits into

devreal:notified-rmafrom

joe-explr:notified-rma-ucx

Commits on Aug 2, 2026

First draft and TODOs for notified comm

devreal
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joe-explr
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d3c78df
osc/sm: Add notification support for put/get operations
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152c28c
osc/sm: Nit picking edits
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f1e07c8
Public APIs for:

Joseph Antony
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joe-explr
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06d61ed
Edits for Public APIs:

Joseph Antony
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joe-explr
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9078470
Notified RMA counters memory allocation in the shared memory segment for a single and multi rank window.

Joseph Antony
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26f568e
Editing Notified RMA implementation

Joseph Antony
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650ff8d
Editing Notified RMA implementation with new design

Joseph Antony
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joe-explr
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cf07e67
Implementing Notify Query

Joseph Antony
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joe-explr
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cd5f1b9
Changes to Notify Query

Joseph Antony
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0c661b2
Implemented Set Notify Query

Joseph Antony
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45c2eda
Changes to Notify Query

Joseph Antony
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193c10b
Configuring memory barries to propagate the update

Joseph Antony
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e47983f
Reset notify value Implementation Signed-off-by: Joseph Antony <jajoseph.antony18@gmail.com>

Joseph Antony
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joe-explr
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095c99d
Addressing review comments and bug fixes Signed-off-by: Joseph Antony <jajoseph.antony18@gmail.com>

Joseph Antony
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joe-explr
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9d4d06c
Removing Duplicate changes Signed-off-by: Joseph Antony <jajoseph.antony18@gmail.com>

Joseph Antony
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joe-explr
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6719fbd
ompi: rename MPI_ERR_NOTIFY_IDX to MPI_ERR_RMA_NOTIFICATION
joe-explr
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1ff322d
osc: add MPI_WIN_SET_NUM_NOTIFY and MPI_WIN_GET_NUM_NOTIFY
joe-explr
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d909605
osc/sm: fix notification counter ordering and index validation
joe-explr
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773703c

Commits on Aug 11, 2026

osc/sm: complete the notified RMA operation set and grow counters
joe-explr
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e69cacc
ompi: add the MPI-5.1 notification window attributes
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655f1ff
ompi/test: add notified RMA tests
joe-explr
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7623174

Commits on Aug 12, 2026

osc/sm: trim the notified RMA comments to the essentials
joe-explr
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a809de8
osc: validate target_rank in MPI_Win_get_num_notify

joe-explr
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claude
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414b9f1
UCX Notified Communication
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b1707e7
UCX Notified Communication changes
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4343b91
Get and set Notify changes
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d0dce0e
osc/ucx: use MPI_ERR_RMA_NOTIFICATION for invalid notification index
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8081698
osc/ucx: complete notified communication except thresholds

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claude
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ac1eaf3
osc/ucx: give notification counters their own registration

joe-explr
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claude
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ba4e461
osc/ucx: progress the worker in MPI_WIN_GET_NOTIFY_VALUE
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7049d0a

Commits on Aug 13, 2026

Fix MPI_WIN_SET_NUM_NOTIFY hang on an invalid argument
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4a4fa2f
osc/ucx: grow notification counters on demand
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306c7e0
osc/ucx: make notified request completion cover the notification
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c5c7b00