# Guacolda-Leftrarú

Leftrarú and Guacolda are a pair of supercomputers manufactured by Hewlett-Packard (currently Hewlett Packard Enterprise) and Dell EMC respectively, and installed at the National Laboratory of High Performance Computing (NLHPC), in the Center for Mathematical Modeling of the University of Chile, being in set the most powerful supercomputer in Chile, and one of the three most powerful in South America. It is intended for the high-performance computing needs for the various scientific and academic organizations in the country.
Them are named in honor of Lautaro (the Mapuche military leader) and Guacolda (the Lautaro's wife according to the mapuche mythology).

## History

The Center for Mathematical Modeling of the University of Chile, together with other universities, proposed to CONICYT in 2010 the creation of the National Laboratory for High Performance Computing (NLHPC), which would be dedicated to research through supercomputing.
In 2014, the Leftrarú supercomputer has been inaugurated, built with nodes provided by Hewlett-Packard, providing a theoretical performance of 50 teraflops in the beginnings, and currently performing at 70 teraflops. In January 2020, Guacolda joins, whose hardware is provided by Dell EMC, delivering a theoretical performance of 196 teraflops.

## Technical specifications

At the time of the inauguration of Guacolda, the joint supercomputer has 5,236 cores and 266 TFLOPS (theorycal). It is composed of Hewlett-Packard SL200 series and Dell EMC PowerEdge C6420 and R740 series nodes.

### Leftrarú

| Manufacturer | Hewlett-Packard | Hewlett-Packard |
| Nodes | 128x HP SL230 | Dual Intel Xeon E5-2660 v2 |
| Nodes | 4x HP SL250 | Dual Intel Xeon E5-2660 v2 |
| CPU cores | 2,640 | 2,640 |
| Coprocessors | 12 Intel Xeon Phi 5110p | 2 Teraflops each |
| Memory | 6.4 TB RAM | 6.4 TB RAM |
| Storage | 274 TB using Lustre (DDN EXAScaler) | 274 TB using Lustre (DDN EXAScaler) |
| Performance | 50 TFLOPS (theorical) | 50 TFLOPS (theorical) |
| Connectivity | Infiniband FDR at 56 Gbit/s | Infiniband FDR at 56 Gbit/s |
| Operating system | Linux | Linux |
| Inauguration date | Juny 18, 2014 | Juny 18, 2014 |

### Guacolda

| Manufacturer | Dell EMC | Dell EMC |
| Nodes | 48x Dell PowerEdge C6420 | Dual Intel Xeon 6152 and 192 GB RAM each node |
| Nodes | 9x Dell PowerEdge C6420 | Dual Intel Xeon 6152 and 768 GB RAM each node |
| Nodes | 2 Dell PowerEdge R740 nodes | Dual Intel Xeon 6152, 192 GB RAM, and 2 Nvidia Tesla V100 GPU each node |
| CPU cores | 2.596 | 2.596 |
| Memory | 16,5 TB RAM | 16,5 TB RAM |
| Storage | 312 TB using Lustre (DDN EXAScaler) | 312 TB using Lustre (DDN EXAScaler) |
| Performance | 196 TFLOPS (theorical) | 196 TFLOPS (theorical) |
| Connectivity | Infiniband FDR at 56 Gbit/s | Infiniband FDR at 56 Gbit/s |
| Operating system | Linux | Linux |
| Inauguration date | January 15, 2020 | January 15, 2020 |

## Affiliated organizations

* University of Chile
* Pontifical Catholic University of Chile
* University of Santiago, Chile
* Austral University of Chile
* Catholic University of the North
* University of La Frontera
* University of La Serena
* University of Talca
* University of the Bío Bío
* Federico Santa María Technical University
* AURA observatory
* Centro Interdisciplinario de Neurociencia de Valparaíso
* Ciencia y Vida foundation
* Inria Chile