[libfabric-users] verbs questions, problem with fi_connect
arnestruck at astruck.de
Mon Oct 26 13:24:25 PDT 2020
Sorry to press the issue, but due date when I shall present some results
is comming closer.
By now I have a setupt which should result in a libfabric installation
with debug mode enabled.
Could debug mode output help us trouble shooting the problem with the
Are there ideas why fi_connect returns an error entry containing Unkown
Error -8 to the respective eq of the ep?
Am 25.10.20 um 16:50 schrieb Arne:
> Hey, got additional questions regarding the usage of the verbs-provider.
> Are there any details/configs to acknowledge sending a fi_connect
> request when trying to connect an Endpoint on the verbs Provider to
> its peer or reading the respective eq?
> Reading the eq afterwards gives Unknown Error -8 from fi_eq_strerror
> (so maybe Exec format error?).
> Debug Level info did not provide any useful info regarding the Problem
> (last info is verbs checking for suitable endpoint types and since the
> fi_endpoint did not return an error I assume it found the requested
> eq-attributes used:
> eq_attr.size = eq_size;
> eq_attr.flags = 0;
> eq_attr.wait_obj = FI_WAIT_FD;
> eq_attr.signaling_vector = 0;
> eq_attr.wait_set = NULL;
> hints used are:
> hints = fi_allocinfo();
> hints->caps = FI_RMA | FI_MSG;
> msg_hints->mode = FI_RX_CQ_DATA;
> msg_hints->ep_attr->type = FI_EP_MSG;
> msg_hints->addr_format = FI_SOCKADDR_IN;
> msg_hints->domain_attr->mr_mode = FI_MR_LOCAL | FI_MR_VIRT_ADDR |
> FI_MR_ALLOCATED | FI_MR_PROV_KEY;
> msg_hints->fabric_attr->prov_name = g_strdup("verbs");
> The address used as target of the fi_connect is the one corresponding
> to the infiniband IP of the server node and as FI_SOCKADDR_IN if that
> is of relevance.
> The call adds some additional connection data to the request.
> On another note: I saw that the node parameter cant be NULL for
> creating fi_infos for active endpoints (got a ENODATA and warning
> revealed that verbs couldnt resolve the address, so I replaced it with
> Is that true or do I have another error?
> Greetings, Arne.
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