Data Centre

LIGO Data Analysis System (LDAS) at IUCAA

IUCAA is currently hosting a LIGO Data Analysis System (LDAS) with peak theoretical CPU performance of ~225TF, which being upgraded to more than 500TF. The civil infrastructure for the data centre  is ready to accommodate the Tier-1 data centre for LIGO-India.

Detailed Specification

The Sarathi cluster hosts 105 compute nodes consisting of  2 x Intel Xeon E5-2680v3 processors with 12 cores per processor and 48 nodes with 2 x Intel Xeon Gold 6142 processors with 16 cores per processors. There are also several head nodes, development nodes, cluster management nodes and nodes providing auxiliary services.

Nodes Description

Sarathi cluster hosts 4 login nodes and 1 utility nodes

72 cores of Intel Xeon E5-2680v3 , 32 cores of Intel Xeon G-6142 , 16 cores of  Intel(R) Xeon(R) CPU E5-2609


2520 cores of Intel Xeon E5-2680v3

1536 cores of  Intel Xeon Gold 6142


128 GB/node on 80 nodes, 256 GB/node on 25 nodes and 192 GB/node on 48 nodes


10 G interconnect and 1G for administration


Network attached storage of usable size about 250 TB

GPU Node

10 NVIDIA TESLA K40M cards

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