Doron --
I chatted with George about this today (we're both at the Forum together this
week). We're in this situation because of some complicated history.
1. At one time, both PUT and GET protocols worked fine in OB1.
2. PUT was the default.
3. Over time, GET got broken (because it was rarely u
Jeff Squyres wrote:
On Nov 29, 2010, at 3:51 AM, Doron Shoham wrote:
If only the PUT flag is set and/or the btl supports only PUT method then the
sender will allocate a rendezvous header and will not eager send any data. The
receiver will schedule rdma PUT(s) of the entire message.
It is d
On Nov 29, 2010, at 3:51 AM, Doron Shoham wrote:
> If only the PUT flag is set and/or the btl supports only PUT method then the
> sender will allocate a rendezvous header and will not eager send any data.
> The receiver will schedule rdma PUT(s) of the entire message.
> It is done in mca_pml_ob1
Hi,
The maximum message size of ConnectX HCAs is 1GB (older cards have a
maximum of 2GB).
Trying to send larger messages over RDMA direct protocol will fail.
A reminder - RDMA direct will be used if RDMA writes or reads are
allowed by |btl_openib_flags| and the sender's message is already
