Roland, Thanks for your question. First of all, the two uDAPL implementations are different. MVAPICH2 code is mostly same for both these implementations. Also, these numbers have been taken on two different platforms. Even though the processor speed is the same on both platforms, other components (incuding the HCAs) might have some impact. This issue needs some further in-depth study while trying to run both Linux and Solaris on the the same platform with the same set of HCAs. If some people in the community would like to carry out this in-depth study, we will be happy to extend help.
Thanks, DK > > - Solaris uDAPL/IBTL on Opteron with PCI-Ex and IBA-SDR: > > Two-sided operations: > > - 5.41 microsec one-way latency (4 bytes) > > > - OpenIB/Gen2 uDAPL on Opteron with PCI-Ex and IBA-SDR: > > Two-sided operations: > > - 3.61 microsec one-way latency (4 bytes) > > Just out of curiousity, do you have any idea why Solaris uDAPL does so > much worse than Linux uDAPL on the same hardware? > > - R. > _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
