Ian Jiang wrote:
Did anybody get an experiment result of comparison?
user level performance test show that gen2 latency is ~0.3 usec (depend
on CPU mhz you have) better then gen1.
Bandwidth is the same.
Do you know which version of OpenIB driver does the IBG2 base on?
svn rev: 5166
Another question: Is it matters which driver is used for the
communication between IB cards or swithes? Or could a IB card drived
by IBGD/IBG2 communicate correctly with one drived by OpenIB?
Between HCA and switch is IB wire protocol, so SW should not influence
on this.
In general I would recommend developing new projects on gen2.
Tziporet
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