Hi Albert,
I have sent yesterday a patch that may enable working with 1TB of registered
memory.
Its subject is: [PATCH] net/mlx4_core: Fix num mtt issues.
Can you test it and let us know whether your issue was solved ?
In the meanwhile I have found the root cause of the limit of log_num_mtt of 28.
Plan to send in coming days an extra patch that enables value of 31 which match
to 8TB.
Yishai
On 8/2/2012 5:31 PM, Albert Strasheim wrote:
Hello
On Fri, Jan 20, 2012 at 8:00 PM, Roland Dreier<[email protected]> wrote:
On Fri, Jan 20, 2012 at 9:39 AM, Albert Strasheim<[email protected]> wrote:
Is there some kind of limit that would prevent me from registering
more than 32 GiB worth of memory regions with ibv_reg_mr in
libibverbs?
Yes, by default mlx4 allocates a limited amount of adapter resources
for tracking memory regions. I forget the exact limits but 32GB looks
reasonable...
I think we've run into this in a "real" application (i.e., not a test).
Is this limit per-process or per-HCA or per-machine? It seems it might
not be per-process.
Any chance to get this limit increased upstream?
Regards
Albert
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
