Hi, In a previous email, I wanted to know how to enable shared memory collectives and I was told setting the coll_sm_priority to anything over 30 should do it.
I tested this for a microbenchmark on allgatherv, but it didn't improve performance over the default setting. See below, where I tested for different number of processes per node on 48 nodes. The total message size is kept constant at 2400000 bytes (or 2.28MB). Am I doing something wrong here? Thank you, saliya [image: Inline image 1] -- Saliya Ekanayake Ph.D. Candidate | Research Assistant School of Informatics and Computing | Digital Science Center Indiana University, Bloomington Cell 812-391-4914 http://saliya.org
