Nvidia (NASDAQ: NVDA) is a global technology company which specializes in the development of graphics processing units and chipset technologies for workstations, personal computers, and mobile devices. HQ based in Santa Clara, California, this company has become a major supplier of integrated circuits (ICs), graphics processing units (GPUs) and chipsets used in graphics cards, personal-computer motherboards, and video game consoles.

In NVIDIA, we use Tcl for testing our graphics driver on a slave-master infrastructure (client-server architecture) where master is responsible for communicating with the slaves, job execution, job scheduling, receiving results and reporting results in the case of user/auto submissions. Earlier both master and slave were written in Tcl but recently we had to move the master code in Java due to socket limitation (1024 max) of Tcl.