notes on how to run benchmarks in this directory:

driver_latency:
===========================

minimum options: 
mpirun -np 2 ./driver_latency -m bmi_tcp

full options:
mpirun -np 2 ./driver_latency -m <method> -l <message len> 
-p (to preallocate BMI mem) -r (to reuse buffers)

other opts (not valid in driver_latency):
===========================
-s <num servers> -t <total len>