Research Methodology Optimization of the Acid Catalyst Concentration for Synthesis of Anti‐Cancer Agent Gamavuton‐0 by Using Mathematical and Statistical Software
4. Design and Analysis
This section discusses the analysis and design cluster systems that will be used as a parallel processing infrastructure. Clusters are made using three computers with a computer is used as a head node Front end and the two others are used as a computer node. Each node uses the Linux operating system Rocks . Mamba . a Analysis System For phase analysis of the problems facing our prior audit the network topology that applied previously, it is to know and help us in designing the network topology using computer cluster parallel processing that can later be applied to improve or to balance server performance in e‐learning. The results of observations conducted in the field as shows in figure , the network topology in SMA Negeri Pekanbaru. Based on the scenario of figure can be explained that every computer user either teacher or student environment of SMA Negeri Pekanbaru who wants to access the e‐learning intranet either using Personal Computer PC of the labor computer is connected to the switch via a cable or using a laptop connected in Wireless Fidelity Wi‐Fi using the Access Point AP which is attached evenly school environment. Based on figure , shows that the computer servers of e‐learning in SMA Negeri Pekanbaru that exist today still use the stand‐alone server. f at the same time the teacher student actively accessing e‐learning which numbered about people then it will slow down the performance of the e‐learning server because the workload is too heavy. 29 Figure 2. Network topology at SMA Negeri 1 Pekanbaru before used Parallel Processing. b Analysis of Cluster System Requirements Cluster built in this study is a dedicated cluster for parallel computing. Clusters are built is to homogenize heterogeneous operating systems and using different hardware devices on each computer. n building a dedicated cluster for parallel computing needed some requirements indicated by the following points: i. Cluster must have the ability to distribute the computing process of the machine head node frontend to machines in other computing. ii. Cluster must have a regulatory system data files on each node so as to facilitate centralized system administration. iii. Cluster must have a global file system that can be accessed by all the nodes for the purpose of accessing the files. iv. ead node Frontend must be able to communicate with the machines node without having to make the authentication process. Cluster must have a system to monitor the processes and computational burden both on each machine computation and computational load in one cluster or all nodes. c ead Node Frontend ead node Frontend is a computer in a cluster that is used to delegate tasks or tasks that will be done by the computer nodes. This computer is also used as a place for users to access the cluster so that users can provide computing tasks into clusters. ead node Frontend should be accessible through the network, so that the head node frontend requires two Ethernet cards, an Ethernet card connected to the public network and the other is connected to a private network or computer node. Besides being a place of access and delegating tasks to the computer node, the head node frontend should also run the services include: Network File System NFS , Network nformation System NS , Dynamic ost Configuration Protocol DCP , ypertext Transfer Protocol TTP , Secure Shell ost SS . The services required by the head node frontend to integrate the nodes in the cluster. Machines used as a head node frontend should have a higher specification than the machines that are used as a computer node. That is because the machine head node computers greater than the machine computer node for the machine head node frontend must be running the services which are not run by the computer nodes.Parts
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