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Guacolda and Leftraru Epu are a pair of supercomputers installed at the National Laboratory for High-Performance Computing (NLHPC) at the University of Chile's Center for Mathematical Modeling.[1][2] Guacolda's hardware was supplied by Dell EMC and originally utilized Intel Xeon processors—to which a node with AMD EPYC processors was later added—while Leftraru Epu uses servers supplied by Lenovo and AMD EPYC processors. In 2024, Leftraru Epu replaced the older Leftraru cluster, which had entered service in 2014 and used Hewlett-Packard servers. Together, they constitute the NLHPC's high-performance computing infrastructure, serving the computational needs of various scientific and academic organizations across the country.
They were named after Guacolda (Lautaro's wife, according to mythology) and Lautaro (the Mapuche military leader), respectively.[3]
Leftraru was commissioned around 2014.[4] Guacolda was commissioned in 2019.[5] Leftraru Epu was commissioned in mid 2024.[6]
The Center for Mathematical Modeling at the University of Chile, together with various university institutions, submitted the National Laboratory for High-Performance Computing (NLHPC) project to CONICYT as part of the First National Competition for Shared-Use Major Scientific and Technological Equipment Service Centers. The project was awarded funding by CONICYT in November 2010 with the aim of establishing high-performance computing capabilities in Chile to support scientific research.[7][8]
In 2014, the NLHPC put its Leftraru supercomputer into operation; it was composed of nodes supplied by Hewlett-Packard and had an initial theoretical performance of 50 teraflops.[9] Subsequently, its capacity reached 70 teraflops. Guacolda came online in 2019, joining Leftraru to increase the NLHPC's processing capacity fivefold. In its initial configuration, Guacolda had a theoretical computing capacity of 196 teraflops, while the combined Guacolda-Leftraru system reached 266 teraflops and 5,236 cores.[10] In 2024, the NLHPC replaced the old Leftraru cluster with Leftraru Epu. The new supercomputer utilizes Lenovo servers and AMD processors and was integrated into the infrastructure alongside Guacolda. In its initial configuration, it featured 7,360 compute cores, 260 teraflops of performance, 12 AMD Instinct MI210 GPUs, and 24,320 GB of RAM.[11]
