Denarii: Multi tenant support for SmartNICs

Install Gurobi 8.1.1

We have only tested this crate with 8.1.1.

Follow instructions in Gurobi Documentation
to install and setup license key for your machine.

To compile gurobi_example.c, use:

gcc -m64 -I/opt/gurobi811/linux64/include/ gurobi_example.c -L /opt/gurobi811/linux64/lib/ -lgurobi81 -lm