Parallel Performance Analysis of the Finite Element – Spherical Harmonics Radiation Transport Method

To My Parents iv ACKNOWLEDGEMENTS I express my sincere gratitude to HIM for everything. I extend my sincere thanks to my advisor Prof. Cassiano R. E. de Oliveira, working with whom was a very pleasing experience, both personally and intellectually. I appreciate his help in guiding me in learning new subject matters. I would also like to thank Ryosuke, whom I bothered the most while trying to understand the intricacies of EVENT. I appreciate his patience in answering my series of questions in the best possible way. I would also like to thank Ignacio for his assistance in the linux administrative work of our cluster machine. I appreciate the members of Neely research lab, my friends and my elder brother for his initial financial help for getting my student visa. I would also want to thank my sisters who always support me. I also want to thank my parents-in-law for their understanding and support. Last, but not the least I would like to thank my husband Saswat very much for his constant guidance and encouragement. I am very fortunate to get such a understanding and supportive husband. I am sure to get the similar support from him while doing my PhD.