Tziporet Koren wrote:
> You can look at the ping-pong examples that come with libibverbs.
http://www.openfabrics.org/downloads/libibverbs/
> Also you can look at the performance tests (ib_write_lat, ib_write_bw, etc).
http://www.openfabrics.org/downloads/perftest/
Thank you for the prompt reply! Not quite what I'm looking for (a proper
programmer's guide) but better than nothing and probably enough to get started.
However, I have a question: our application needs multicast which, if I understand
things correctly, means the only option is Unreliable Datagrams.
I'm experimenting with ud_pingpong.c and it works, but as soon as a try to
exchange messages bigger than 2048 bytes I have the following error:
Failed status local length error (1) for wr_id 2
A table in Mellanox' "RDMA Aware Networks Programming" shows that for UDs the max
messages size is limited by the MTU. That really being the case, how can I
check/change the it?
Many thanks in advance,
Werther Pirani
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