The former Spanish Ministry of Science and Innovation founded the RES in July 2006 as a response to the need of the Spanish scientific community for increased computation capacity and access to intensive calculation resources, considering the supercomputing resources as a decisive asset for the scientific and technological development of the country. The RES consists of a distributed virtual infrastructure of supercomputers located in different sites, each of which contributes to the total processing power available to users of different R&D groups. Currently, the supercomputers are located in Extremadura (Extremadura Center for Research, Technological Innovation and Supercomputing), the Canary Islands (Instituto Astrofísico de Canarias), Castilla y León (Castilla y León Supercomputing Center), the Universities of Cantabria, Autónoma de Madrid, Málaga, Valencia and Zaragoza, CESGA, and CSUC, with the coordinating body being the Barcelona Supercomputing Center (BSC-CNS). The RES not only provides supercomputing resources, it also offers service of technical support to users as well as specific training. Moreover it organizes users’ meetings and scientific seminars. The goal of these actions is to improve the efficient usage of the resources and expand the use of supercomputing to all the research areas.
The Calendula node is hosted in the Castilla y León Supercomputing Center (SCAYLE). The main activity of the center is the improvement of research tasks in universities, R & D centers and companies. To this end, innovation actions are promoted and developed in the fields of Knowledge Society, intensive calculation, communications and advanced services, contributing through technological improvement to the Region economic development and improving companies competitiveness. Calendula supercomputer reaches a calculation capacity of 132 Teraflops.