With climate change becoming an important topic in everyday life, the use of climate models for simulations is common. But these climate models are tools that demand heavy HPC resources. The advent of latest technologies in HPC systems have changed the way the climate research field has developed and there is always a never-ending need for sound infrastructure to meet with the herculean tasks of modelling and project deadlines. The talk will highlight certain issues on the use of such HPC systems looking at their merits and limitations and cite some case studies of benchmarked exercises using different HPC platforms.BioDr Srivatsan has been working as a Research Fellow at the Tropical Marine Science Institute, National University of Singapore since 2008. He holds a PhD in Climate Science from the University College London (UCL), UK. His main interests are regional climate modelling and climate change impacts studies. He has been active in several climate change related projects and is also an avid participant in the institute's educational outreach programs. He took part in the CAN! Green campaign, represented Singapore in the 30th Session of the Intergovernmental Panel on Climate Change (IPCC) in Turkey and was chosen by the Asia Oceania Geosciences Society to present a radio interview on 938 Live.