Supercomputers/Systems/PARAM Rudra (GMRT)
India · operational · hpc
PARAM Rudra (GMRT)
Operated by TIFR .
Researched with AI assistance, checked by scripts. These rows were researched by AI agents reading public operator, laboratory and vendor sources, appended by scripts and checked by automated validation; no subject-matter expert has reviewed them (how this site is made). A mechanical second-reader pass has since fetched every cited source: 1350 of 1540 systems have a readable citation that names them, and 64 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.
Measured performance
- Rmax
- -
- Rpeak
- 1.00 PFlop/s
- Rmax ÷ Rpeak
- -
- Cores
- -
- Power
- -
- Per watt
- - GF/W
Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.
What this machine is made of
One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.
| Role | Part | Supplier at build | Quantity | Confidence | Source |
|---|---|---|---|---|---|
| Integrator | - C-DAC designed and commissioned; Rudra servers supplied by VVDN Technologies (Gurgaon) | C-DAC | - | Reported | nsmindia.incdac.in |
| Accelerator | - 45 GPU compute nodes, 90 NVIDIA A100 PCIe per NSM sheet | NVIDIA | 90 reported | Reported | nsmindia.in |
| CPU | - 2 x Intel Xeon Gold 6240R 24C 2.4GHz per node | Intel | - | Reported | nsmindia.in |
| Interconnect | NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds 100Gbps Mellanox InfiniBand HDR, non-blocking fat tree | NVIDIA | - | Reported | nsmindia.in |
The read
PARAM Rudra at the Giant Metrewave Radio Telescope near Pune (operated by NCRA, part of TIFR), one of three PARAM Rudra facilities dedicated on 27 September 2024 together with IUAC (param-rudra-iuac) and SNBNCBS Kolkata (param-rudra-snbncbs). C-DAC's release describes a 1 PFlop/s facility with a GPU in every node, aimed at radio-astronomy work such as fast radio bursts; the NSM page's own spec table instead gives Rpeak 1.3 PFlop/s, and both are noted here with 1.0 recorded as the headline figure. The NSM sheet lists nodes with two Xeon Gold 6240R 24-core 2.4 GHz processors, 45 GPU nodes (90 NVIDIA A100 PCIe cards) plus 15 GPU-ready nodes, 37.68 TB of memory, a 100 Gb/s Mellanox HDR InfiniBand non-blocking fat tree and 2.0 PiB of storage; that sheet is internally inconsistent on the GPU node count (its node tables show two A100 on both groups), so the 90-card figure is the page's own headline and not independently confirmed. The servers are Rudra-series machines transferred by C-DAC to Indian manufacturers, with VVDN Technologies supplying this batch.
Timeline
- 2024-09 First operational source
Change history
- 2026-10-18 Added PARAM Rudra (GMRT) (TIFR)
Further reading
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
Inside a node
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.