Query: How to use static QP number in test ib_write_bw?

[manomugdha]

Hi,
Instead of dynamic QPN, I want to use static QPN when running this test. It seems there is way to do it but not working.
I tried to use following flags in perftest to set a QPN.

attr_ex.create_flags |= IBV_QP_CREATE_SOURCE_QPN;
attr_ex.source_qpn = 100;


qp = ibv_create_qp_ex(ctx->context, &attr_ex);

Any idea how to control the creation of QPN from perftest?