Supercomputers/Systems/PARAM Rudra (IIT Bombay)
India · operational · hpc
PARAM Rudra (IIT Bombay)
Operated by IIT Bombay .
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
- 3.10 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 | - Designed and deployed by C-DAC on Rudra servers made in India | C-DAC | - | Reported | nsmindia.in |
| Accelerator | - 30 GPU compute nodes, 60 NVIDIA A100 PCIe | NVIDIA | 60 reported | Reported | nsmindia.in |
| CPU | - 2 x Intel Xeon Gold 6240R 24C 2.4GHz per node | Intel | - | Reported | nsmindia.in |
| Interconnect | NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds Primary: Mellanox InfiniBand NDR, 100% non-blocking fat tree (as listed on the NSM page) | NVIDIA | - | Reported | nsmindia.in |
The read
National Supercomputing Mission phase-3 PARAM Rudra system built by C-DAC for IIT Bombay on Rudra servers designed and made in India; the NSM page gives 3.1 PFlop/s peak in its overview and 3 PFlop/s in its spec table (3.1 is recorded). Listed hardware: 482 CPU-only nodes and 90 high-memory (768 GB) nodes with dual Xeon Gold 6240R, 30 GPU nodes with two A100 PCIe cards each (60 GPUs), 20 master/login nodes, 163.5 TB of memory, 4.4 PiB of storage, and a primary fabric the page names as Mellanox InfiniBand NDR. It is the same size class as the IUAC machine (param-rudra-iuac, 3 PFlop/s, September 2024), but the NSM page gives no dedication date for the IIT Bombay installation, so no commissioning date is recorded. No Linpack result is published.
Timeline
No dated events recorded.
Change history
- 2026-10-18 Added PARAM Rudra (IIT Bombay) (IIT Bombay)
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.