Hi, Today I upgraded Gen2 drivers to revision 2539. I am seeing that there are CQ & QP creation problems with larger number of CQ entries.
For example, with rdma_lat (part of perftest), I can go upto number of CQ entries = 256 when I hit an error: [EMAIL PROTECTED]:perftest] ./rdma_lat --tx-depth=256 Couldn't create QP Upon increasing the CQ entries to slightly larger values, the CQ creation fails (at exactly 512) [EMAIL PROTECTED]:perftest] ./rdma_lat --tx-depth=512 Couldn't create CQ I am running these tests on a 3.4 GHz EM64T machine. Has anyone else also seen these problems? For applications like MPI, generally the number of CQ entries required are quite large (since we have only one CQ per MPI process and a lot of communicating peers). Typical number of CQ entries used (in MVAPICH) is around 40,000. Please let me know how to work around this problem. Thanks, Sayantan. -- http://www.cse.ohio-state.edu/~surs _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
