Maximum size for memory registration (ibv_reg_mr)

Bharath Ramesh
2010-09-24T22:12:05Z

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Is there any limit on the maximum size of memory that can be registered
using ibv_reg_mr. I am using OFED-1.4.2 stack, and when I try to pass a size
greater than 16GB ibv_reg_mr returns NULL. The total amount of physical
memory on the node is 48GB, max locked memory(ulimit -l) is set to
unlimited.

Regards,

Bharath

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