@article{1860, author = {Mustapha M. Baua’a1, Jehan K. Shareef 2, Aqeel M. Hamad3}, title = {Evaluation of Virtual and Physical Parallelism Environments}, journal = {Journal of Information Technology Review}, year = {2015}, volume = {6}, number = {3}, doi = {}, url = {http://www.dline.info/jitr/fulltext/v6n3/v6n3_1.pdf}, abstract = {Parallelism is the concept that associates with participating more than one computer, process, or thread in one problem execution. The concept is used for increasing multitasks performance execution effectively. Many algorithms, techniques, architectures, frameworks, and environments are found to enhance this concept and finally enhance the performance. However, two basic environments are exists to execute parallel tasks; these two environments are Virtual and Physical parallelism. Both of these two runtime environments have their features, advantages and disadvantages. The paper focuses on analyze, evaluate and clarify some differences between the two environments. Results depend on real case study executed via Java-Thread, Open-MP, MPI in virtual environment and an MPI in physical environment. Implementation of the case study and validation results are shown and they clearly clarify the advantages, disadvantages and limits of using any environment of them.}, }