настройка многоадресной рассылки RDMA CM и простой тест передачи данных (RDMA CM multicast setup and simple data transfer test.)
Имя (Name)
mckey - RDMA CM multicast setup and simple data transfer test.
Синопсис (Synopsis)
mckey -m multicast_address [-s] [-b bind_address] [-c connections]
[-C message_count] [-S message_size] [-p port_space]
mckey -m multicast_address -s [-b bind_address] [-c connections]
[-C message_count] [-S message_size] [-p port_space]
mckey -M unmapped_multicast_address -b bind_address [-s] [-c connections]
[-C message_count] [-S message_size] [-p port_space]
Описание (Description)
Establishes a set of RDMA multicast communication paths between
nodes using the librdmacm, optionally transfers datagrams to
receiving nodes, then tears down the communication.
Параметры (Options)
-m multicast_address
IP multicast address to join.
-M unmapped_multicast_address
RDMA transport specific multicast address to join.
-s Send datagrams to the multicast group.
-b bind_address
The local network address to bind to.
-c connections
The number of QPs to join the multicast group. (default
1)
-C message_count
The number of messages to transfer over each connection.
(default 10)
-S message_size
The size of each message transferred, in bytes. This
value must be smaller than the MTU of the underlying RDMA
transport, or an error will occur. (default 100)
-o Join the multicast group as a send-only full-member.
Otherwise the group is joined as a full-member.
-p port_space
The port space of the datagram communication. May be
either the RDMA UDP (0x0111) or IPoIB (0x0002) port space.
(default RDMA_PS_UDP)
Примечание (Note)
Basic usage is to start mckey -m multicast_address on a server
system, then run mckey -m multicast_address -s on a client
system.
Unique Infiniband SA assigned multicast GIDs can be retrieved by
invoking mckey with a zero MGID or IP address. (Example, -M 0 or
-m 0.0.0.0). The assigned address will be displayed to allow
mckey clients to join the created group.
Because this test maps RDMA resources to userspace, users must
ensure that they have available system resources and permissions.
See the libibverbs README file for additional details.
Смотри также (See also)
rdma_cm(7), ucmatose(1), udaddy(1), rping(1)
