A Security Prioritized Computational Grid Scheduling Model - Cloud, Grid and High Performance Computing: Emerging Applications - page 100

Figure 2. Makespan comparison for different grid environments when number of tasks is fixed to 40 and
the number of processing nodes varies from 4 to 24

It has also been observed that whenever heavy
tasks demands less security and high speed nodes
are less secured, SPMinMin and MinMin behave
identically as can be gleaned from Figure 1e and
Figure 2e.
There are no dependencies between speed of
nodes and security and between length of task and
security demand. This is the most realistic grid situ-

ation and under most of the situation SPMinMin
will perform better than MinMin giving a better
makespan and site utilization as shown with the
sample data above. Graph 3g and 4g confirm this.
Finally, it is concluded that under all possible
situations where security of the task needs to be
fulfilled, SPMinMin either outperforms MinMin
or in the worst case behaves similar to MinMin. It