How do I use InfiniBand / SDP with Chromium?
Chromium supports Infiniband both with the native (Verbs) interface and SDP. When you call AddServer() in your Python configuration script, you can specify “ib” or “sdp” as the protocol, respectively. You must have first compiled Chromium with InfiniBand/SDP support. See the top-level options.mk file for more information. Socket Direct Protocol (SDP) uses InfiniBand through ordinary Unix network sockets. The advantage of using SDP over the Verbs interface is that connections between Chromium nodes should close cleanly upon exit. With the “ib” protocol, you’ll typically have to manually kill crservers, etc. after you exit because the Verbs interface is bad at detecting broken connections. If you’re using SDP, Chromium will need to address hosts by their “SDP hostname” which is typically the hostname suffixed with something like “sdp” or “ib”. Chromium defaults to using “sdp”. A different suffix can be specified with the CR_SDP_SUFFIX environment variable. Check your /etc/hosts file to s
