[libfabric-users] Libfabric : Facing issues with FI_VERSION(1, 5) in fi_getinfo()

Ilango, Arun arun.ilango at intel.com
Mon May 14 09:29:23 PDT 2018


For scenario in 1, verbs;ofi_rxm should return fi_info for all available interfaces. Can you check if the provider is returning just the fi_info for localhost or is it returning other fi_info in the list as well? If you can share the debug level logs, I can take a look.

2) ofi_rxm doesn't have atomics support yet but it has read and write functionality. Can you try just setting FI_WRITE and FI_READ in hints->caps?


From: Libfabric-users [mailto:libfabric-users-bounces at lists.openfabrics.org] On Behalf Of Subhadeep Bhattacharya
Sent: Monday, May 14, 2018 8:23 AM
To: libfabric-users at lists.openfabrics.org
Subject: [libfabric-users] Libfabric : Facing issues with FI_VERSION(1, 5) in fi_getinfo()


I have few questions regarding the usage of verbs;ofi_rxm provider.
1)      We have latest OFED driver installed in our cluster and it have mlx5_0. The inet address for infiniband is set to for node 2. However, if I put node and service as NULL and flag as 0 while querying the fi_getinfo, it is fetching the localhost address( instead of ib0( Can you please let us know how to solve this issue.

2)      I am trying to get read, write and atomics functionality. I can see in the manual that verbs support FI_ATOMIC but ofi_rxm does not support it. Do I need to use both FI_EP_RDM and FI_EP_MSG as endpoint types with verbs;ofi_rxm to enable atomics along with read and write.

We are trying to get read, write and atomics functionality using verbs;ofi_rxm provider of Libfabric. Can you please let us know, which options are necessary to set in hints before passing it to fi_getinfo.

Thanks and Regards,

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