OpenMP is a framework for shared memory parallel computing Raytracing: graphics rendering technique by tracing the path of light from the view camerathrough the 2D viewing plane, out into the 3D scene, and back to the light sources GPU provides much higher insturction throughput and memory bandwidth than CPUGPU is designed for highly parallel computations andtherefore designed such that more tra..

lock granularity : size of code protected by lock coarse lock granularity : lock covers large cirtical section too-coarse lock graunlarity poor performance : low concurrency fine lock granularity : lock covers small ciritcal section too-fine lock granularity poor performance : high overhead distributed system: autonomous computers, physically dispersed, connected network, appear as a single co..