Running multiple tensorflow sessions concurrently

Question

I am trying to run several sessions of TensorFlow concurrently on a CentOS 7 machine with 64 CPUs. My colleague reports that he can use the following two blocks of code to p

Answer 1

From comment by OP (user1936768):

I have good news: It turns out, on my system at least, my trial programs didn't execute long enough for the other instances of TF to start up. When I put a longer running example program in main, I do indeed see concurrent computations