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Provider Feature Matrix v1.18.x

Tim Thompson edited this page Jun 5, 2023 · 3 revisions

The tables below indicate which features are supported by which in-tree libfabric providers.


Key

✓ = well supported

* = limited support (e.g., not supported for all endpoint types or not optimal for performance)

❌ = not supported

U = supported through utility provider(s)

R = required mode bit

O = optional mode bit

(no mark) = not applicable or not needed

? = provider hasn't been assessed yet for this feature

C = same as that of Core provider.


Endpoint Types gni nd psm2 rxd rxm shm tcp udp verbs efa ucx usnic psm3 opx
FI_EP_DGRAM * ?
FI_EP_MSG
FI_EP_RDM U U U U U
Primary Caps gni nd psm2 rxd rxm shm tcp udp verbs efa ucx usnic psm3 opx
FI_ATOMIC *
FI_COLLECTIVE
FI_DIRECTED_RECV
FI_HMEM ?
FI_MSG
FI_MULTICAST *
FI_NAMED_RX_CTX
FI_RMA * *
FI_TAGGED * *
FI_VARIABLE_MSG
Primary Mods gni nd psm2 rxd rxm shm tcp udp verbs efa ucx usnic psm3 opx
FI_READ
FI_RECV
FI_REMOTE_READ *
FI_REMOTE_WRITE *
FI_SEND *
FI_WRITE *
Secondary Caps gni nd psm2 rxd rxm shm tcp udp verbs efa ucx usnic psm3 opx
FI_FENCE
FI_LOCAL_COMM C C
FI_MULTI_RECV * *
FI_REMOTE_COMM C
FI_RMA_EVENT ?
FI_RMA_PMEM
FI_SHARED_AV ?
FI_SOURCE
FI_SOURCE_ERR ? ? ? * ?
FI_TRIGGER ?
FI_RMA_PMEM
Modes gni nd psm2 rxd rxm shm tcp udp verbs efa ucx usnic psm3 opx
FI_ASYNC_IOV R
FI_BUFFERED_RECV
FI_CONTEXT R R O R
FI_CONTEXT2 R
FI_LOCAL_MR (compat) R O R R
FI_MSG_PREFIX
FI_NOTIFY_FLAGS_ONLY
FI_RESTRICTED_COMP
FI_RX_CQ_DATA R
MR Modes gni nd psm2 rxd rxm shm tcp udp verbs efa ucx usnic psm3 opx
FI_MR_ALLOCATED R C R R R
FI_MR_ENDPOINT
FI_MR_LOCAL R C R
FI_MR_PROV_KEY R C R R R
FI_MR_MMU_NOTIFY
FI_MR_RAW R
FI_MR_RMA_EVENT
FI_MR_VIRT_ADDR R C O R R R
FI_MR_BASIC (compat) O
FI_MR_SCALABLE (compat) C O
Additional Features gni nd psm2 rxd rxm shm tcp udp verbs efa ucx usnic psm3 opx
FABRIC_DIRECT
FI_RM_ENABLED *
Scalable endpoints
Counters (local operations) * *
Counters (remote operations)

Note: The following providers are supported and maintained, but feature frozen: bgq, psm, and sockets. See the v1.8 provider feature matrix for API support details. Out of tree and closed source providers are not listed. Please contact those vendors directly.